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php5  5.3.10
Classes | Defines | Functions
zip.c File Reference
#include "phar_internal.h"

Go to the source code of this file.

Classes

struct  _phar_zip_pass

Defines

#define PHAR_GET_16(var)
#define PHAR_GET_32(var)
#define PHAR_SET_32(var, value)   phar_write_32(var, (php_uint32) (value));
#define PHAR_SET_16(var, value)   phar_write_16(var, (php_uint16) (value));
#define PHAR_ZIP_FAIL_FREE(errmsg, save)
#define PHAR_ZIP_FAIL(errmsg)

Functions

static void phar_write_32 (char buffer[4], php_uint32 value)
static void phar_write_16 (char buffer[2], php_uint32 value)
static int phar_zip_process_extra (php_stream *fp, phar_entry_info *entry, php_uint16 len TSRMLS_DC)
static time_t phar_zip_d2u_time (char *cdtime, char *cddate)
static void phar_zip_u2d_time (time_t time, char *dtime, char *ddate)
int phar_parse_zipfile (php_stream *fp, char *fname, int fname_len, char *alias, int alias_len, phar_archive_data **pphar, char **error TSRMLS_DC)
 Does not check for a previously opened phar in the cache.
int phar_open_or_create_zip (char *fname, int fname_len, char *alias, int alias_len, int is_data, int options, phar_archive_data **pphar, char **error TSRMLS_DC)
 Create or open a zip-based phar for writing.
static int phar_zip_changed_apply (void *data, void *arg TSRMLS_DC)
static int phar_zip_applysignature (phar_archive_data *phar, struct _phar_zip_pass *pass, smart_str *metadata TSRMLS_DC)
int phar_zip_flush (phar_archive_data *phar, char *user_stub, long len, int defaultstub, char **error TSRMLS_DC)

Class Documentation

struct _phar_zip_pass

Definition at line 777 of file zip.c.

Class Members
php_stream * centralfp
char ** error
php_stream * filefp
int free_fp
int free_ufp
php_stream * old

Define Documentation

#define PHAR_GET_16 (   var)
Value:
((php_uint16)((((php_uint16)var[0]) & 0xff) | \
       (((php_uint16)var[1]) & 0xff) << 8))

Definition at line 21 of file zip.c.

#define PHAR_GET_32 (   var)
Value:
((php_uint32)((((php_uint32)var[0]) & 0xff) | \
       (((php_uint32)var[1]) & 0xff) << 8 | \
       (((php_uint32)var[2]) & 0xff) << 16 | \
       (((php_uint32)var[3]) & 0xff) << 24))

Definition at line 23 of file zip.c.

#define PHAR_SET_16 (   var,
  value 
)    phar_write_16(var, (php_uint16) (value));

Definition at line 40 of file zip.c.

#define PHAR_SET_32 (   var,
  value 
)    phar_write_32(var, (php_uint32) (value));

Definition at line 39 of file zip.c.

#define PHAR_ZIP_FAIL (   errmsg)
Value:
zend_hash_destroy(&mydata->manifest); \
                     mydata->manifest.arBuckets = 0; \
                     zend_hash_destroy(&mydata->mounted_dirs); \
                     mydata->mounted_dirs.arBuckets = 0; \
                     zend_hash_destroy(&mydata->virtual_dirs); \
                     mydata->virtual_dirs.arBuckets = 0; \
                     php_stream_close(fp); \
                     if (mydata->metadata) { \
                            zval_dtor(mydata->metadata); \
                     } \
                     if (mydata->signature) { \
                            efree(mydata->signature); \
                     } \
                     if (error) { \
                            spprintf(error, 4096, "phar error: %s in zip-based phar \"%s\"", errmsg, mydata->fname); \
                     } \
                     pefree(mydata->fname, mydata->is_persistent); \
                     if (mydata->alias) { \
                            pefree(mydata->alias, mydata->is_persistent); \
                     } \
                     pefree(mydata, mydata->is_persistent); \
                     return FAILURE;
#define PHAR_ZIP_FAIL_FREE (   errmsg,
  save 
)
Value:
zend_hash_destroy(&mydata->manifest); \
                     mydata->manifest.arBuckets = 0; \
                     zend_hash_destroy(&mydata->mounted_dirs); \
                     mydata->mounted_dirs.arBuckets = 0; \
                     zend_hash_destroy(&mydata->virtual_dirs); \
                     mydata->virtual_dirs.arBuckets = 0; \
                     php_stream_close(fp); \
                     if (mydata->metadata) { \
                            zval_dtor(mydata->metadata); \
                     } \
                     if (mydata->signature) { \
                            efree(mydata->signature); \
                     } \
                     if (error) { \
                            spprintf(error, 4096, "phar error: %s in zip-based phar \"%s\"", errmsg, mydata->fname); \
                     } \
                     pefree(mydata->fname, mydata->is_persistent); \
                     if (mydata->alias) { \
                            pefree(mydata->alias, mydata->is_persistent); \
                     } \
                     pefree(mydata, mydata->is_persistent); \
                     efree(save); \
                     return FAILURE;

Function Documentation

int phar_open_or_create_zip ( char *  fname,
int  fname_len,
char *  alias,
int  alias_len,
int  is_data,
int  options,
phar_archive_data **  pphar,
char **error  TSRMLS_DC 
)

Create or open a zip-based phar for writing.

Definition at line 742 of file zip.c.

{
       phar_archive_data *phar;
       int ret = phar_create_or_parse_filename(fname, fname_len, alias, alias_len, is_data, options, &phar, error TSRMLS_CC);

       if (FAILURE == ret) {
              return FAILURE;
       }

       if (pphar) {
              *pphar = phar;
       }

       phar->is_data = is_data;

       if (phar->is_zip) {
              return ret;
       }

       if (phar->is_brandnew) {
              phar->internal_file_start = 0;
              phar->is_zip = 1;
              phar->is_tar = 0;
              return SUCCESS;
       }

       /* we've reached here - the phar exists and is a regular phar */
       if (error) {
              spprintf(error, 4096, "phar zip error: phar \"%s\" already exists as a regular phar and must be deleted from disk prior to creating as a zip-based phar", fname);
       }

       return FAILURE;
}

Here is the call graph for this function:

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int phar_parse_zipfile ( php_stream *  fp,
char *  fname,
int  fname_len,
char *  alias,
int  alias_len,
phar_archive_data **  pphar,
char **error  TSRMLS_DC 
)

Does not check for a previously opened phar in the cache.

Parse a new one and add it to the cache, returning either SUCCESS or FAILURE, and setting pphar to the pointer to the manifest entry

This is used by phar_open_from_fp to process a zip-based phar, but can be called directly.

Definition at line 166 of file zip.c.

{
       phar_zip_dir_end locator;
       char buf[sizeof(locator) + 65536];
       long size;
       php_uint16 i;
       phar_archive_data *mydata = NULL;
       phar_entry_info entry = {0};
       char *p = buf, *ext, *actual_alias = NULL;
       char *metadata = NULL;

       size = php_stream_tell(fp);

       if (size > sizeof(locator) + 65536) {
              /* seek to max comment length + end of central directory record */
              size = sizeof(locator) + 65536;
              if (FAILURE == php_stream_seek(fp, -size, SEEK_END)) {
                     php_stream_close(fp);
                     if (error) {
                            spprintf(error, 4096, "phar error: unable to search for end of central directory in zip-based phar \"%s\"", fname);
                     }
                     return FAILURE;
              }
       } else {
              php_stream_seek(fp, 0, SEEK_SET);
       }

       if (!php_stream_read(fp, buf, size)) {
              php_stream_close(fp);
              if (error) {
                     spprintf(error, 4096, "phar error: unable to read in data to search for end of central directory in zip-based phar \"%s\"", fname);
              }
              return FAILURE;
       }

       while ((p=(char *) memchr(p + 1, 'P', (size_t) (size - (p + 1 - buf)))) != NULL) {
              if (!memcmp(p + 1, "K\5\6", 3)) {
                     memcpy((void *)&locator, (void *) p, sizeof(locator));
                     if (PHAR_GET_16(locator.centraldisk) != 0 || PHAR_GET_16(locator.disknumber) != 0) {
                            /* split archives not handled */
                            php_stream_close(fp);
                            if (error) {
                                   spprintf(error, 4096, "phar error: split archives spanning multiple zips cannot be processed in zip-based phar \"%s\"", fname);
                            }
                            return FAILURE;
                     }

                     if (PHAR_GET_16(locator.counthere) != PHAR_GET_16(locator.count)) {
                            if (error) {
                                   spprintf(error, 4096, "phar error: corrupt zip archive, conflicting file count in end of central directory record in zip-based phar \"%s\"", fname);
                            }
                            php_stream_close(fp);
                            return FAILURE;
                     }

                     mydata = pecalloc(1, sizeof(phar_archive_data), PHAR_G(persist));
                     mydata->is_persistent = PHAR_G(persist);

                     /* read in archive comment, if any */
                     if (PHAR_GET_16(locator.comment_len)) {

                            metadata = p + sizeof(locator);

                            if (PHAR_GET_16(locator.comment_len) != size - (metadata - buf)) {
                                   if (error) {
                                          spprintf(error, 4096, "phar error: corrupt zip archive, zip file comment truncated in zip-based phar \"%s\"", fname);
                                   }
                                   php_stream_close(fp);
                                   pefree(mydata, mydata->is_persistent);
                                   return FAILURE;
                            }

                            mydata->metadata_len = PHAR_GET_16(locator.comment_len);

                            if (phar_parse_metadata(&metadata, &mydata->metadata, PHAR_GET_16(locator.comment_len) TSRMLS_CC) == FAILURE) {
                                   mydata->metadata_len = 0;
                                   /* if not valid serialized data, it is a regular string */

                                   if (entry.is_persistent) {
                                          ALLOC_PERMANENT_ZVAL(mydata->metadata);
                                   } else {
                                          ALLOC_ZVAL(mydata->metadata);
                                   }

                                   INIT_ZVAL(*mydata->metadata);
                                   metadata = pestrndup(metadata, PHAR_GET_16(locator.comment_len), mydata->is_persistent);
                                   ZVAL_STRINGL(mydata->metadata, metadata, PHAR_GET_16(locator.comment_len), 0);
                            }
                     } else {
                            mydata->metadata = NULL;
                     }

                     goto foundit;
              }
       }

       php_stream_close(fp);

       if (error) {
              spprintf(error, 4096, "phar error: end of central directory not found in zip-based phar \"%s\"", fname);
       }

       return FAILURE;
foundit:
       mydata->fname = pestrndup(fname, fname_len, mydata->is_persistent);
#ifdef PHP_WIN32
       phar_unixify_path_separators(mydata->fname, fname_len);
#endif
       mydata->is_zip = 1;
       mydata->fname_len = fname_len;
       ext = strrchr(mydata->fname, '/');

       if (ext) {
              mydata->ext = memchr(ext, '.', (mydata->fname + fname_len) - ext);
              if (mydata->ext == ext) {
                     mydata->ext = memchr(ext + 1, '.', (mydata->fname + fname_len) - ext - 1);
              }
              if (mydata->ext) {
                     mydata->ext_len = (mydata->fname + fname_len) - mydata->ext;
              }
       }

       /* clean up on big-endian systems */
       /* seek to central directory */
       php_stream_seek(fp, PHAR_GET_32(locator.cdir_offset), SEEK_SET);
       /* read in central directory */
       zend_hash_init(&mydata->manifest, PHAR_GET_16(locator.count),
              zend_get_hash_value, destroy_phar_manifest_entry, (zend_bool)mydata->is_persistent);
       zend_hash_init(&mydata->mounted_dirs, 5,
              zend_get_hash_value, NULL, (zend_bool)mydata->is_persistent);
       zend_hash_init(&mydata->virtual_dirs, PHAR_GET_16(locator.count) * 2,
              zend_get_hash_value, NULL, (zend_bool)mydata->is_persistent);
       entry.phar = mydata;
       entry.is_zip = 1;
       entry.fp_type = PHAR_FP;
       entry.is_persistent = mydata->is_persistent;
#define PHAR_ZIP_FAIL_FREE(errmsg, save) \
                     zend_hash_destroy(&mydata->manifest); \
                     mydata->manifest.arBuckets = 0; \
                     zend_hash_destroy(&mydata->mounted_dirs); \
                     mydata->mounted_dirs.arBuckets = 0; \
                     zend_hash_destroy(&mydata->virtual_dirs); \
                     mydata->virtual_dirs.arBuckets = 0; \
                     php_stream_close(fp); \
                     if (mydata->metadata) { \
                            zval_dtor(mydata->metadata); \
                     } \
                     if (mydata->signature) { \
                            efree(mydata->signature); \
                     } \
                     if (error) { \
                            spprintf(error, 4096, "phar error: %s in zip-based phar \"%s\"", errmsg, mydata->fname); \
                     } \
                     pefree(mydata->fname, mydata->is_persistent); \
                     if (mydata->alias) { \
                            pefree(mydata->alias, mydata->is_persistent); \
                     } \
                     pefree(mydata, mydata->is_persistent); \
                     efree(save); \
                     return FAILURE;
#define PHAR_ZIP_FAIL(errmsg) \
                     zend_hash_destroy(&mydata->manifest); \
                     mydata->manifest.arBuckets = 0; \
                     zend_hash_destroy(&mydata->mounted_dirs); \
                     mydata->mounted_dirs.arBuckets = 0; \
                     zend_hash_destroy(&mydata->virtual_dirs); \
                     mydata->virtual_dirs.arBuckets = 0; \
                     php_stream_close(fp); \
                     if (mydata->metadata) { \
                            zval_dtor(mydata->metadata); \
                     } \
                     if (mydata->signature) { \
                            efree(mydata->signature); \
                     } \
                     if (error) { \
                            spprintf(error, 4096, "phar error: %s in zip-based phar \"%s\"", errmsg, mydata->fname); \
                     } \
                     pefree(mydata->fname, mydata->is_persistent); \
                     if (mydata->alias) { \
                            pefree(mydata->alias, mydata->is_persistent); \
                     } \
                     pefree(mydata, mydata->is_persistent); \
                     return FAILURE;

       /* add each central directory item to the manifest */
       for (i = 0; i < PHAR_GET_16(locator.count); ++i) {
              phar_zip_central_dir_file zipentry;
              off_t beforeus = php_stream_tell(fp);

              if (sizeof(zipentry) != php_stream_read(fp, (char *) &zipentry, sizeof(zipentry))) {
                     PHAR_ZIP_FAIL("unable to read central directory entry, truncated");
              }

              /* clean up for bigendian systems */
              if (memcmp("PK\1\2", zipentry.signature, 4)) {
                     /* corrupted entry */
                     PHAR_ZIP_FAIL("corrupted central directory entry, no magic signature");
              }

              if (entry.is_persistent) {
                     entry.manifest_pos = i;
              }

              entry.compressed_filesize = PHAR_GET_32(zipentry.compsize);
              entry.uncompressed_filesize = PHAR_GET_32(zipentry.uncompsize);
              entry.crc32 = PHAR_GET_32(zipentry.crc32);
              /* do not PHAR_GET_16 either on the next line */
              entry.timestamp = phar_zip_d2u_time(zipentry.timestamp, zipentry.datestamp);
              entry.flags = PHAR_ENT_PERM_DEF_FILE;
              entry.header_offset = PHAR_GET_32(zipentry.offset);
              entry.offset = entry.offset_abs = PHAR_GET_32(zipentry.offset) + sizeof(phar_zip_file_header) + PHAR_GET_16(zipentry.filename_len) +
                     PHAR_GET_16(zipentry.extra_len);

              if (PHAR_GET_16(zipentry.flags) & PHAR_ZIP_FLAG_ENCRYPTED) {
                     PHAR_ZIP_FAIL("Cannot process encrypted zip files");
              }

              if (!PHAR_GET_16(zipentry.filename_len)) {
                     PHAR_ZIP_FAIL("Cannot process zips created from stdin (zero-length filename)");
              }

              entry.filename_len = PHAR_GET_16(zipentry.filename_len);
              entry.filename = (char *) pemalloc(entry.filename_len + 1, entry.is_persistent);

              if (entry.filename_len != php_stream_read(fp, entry.filename, entry.filename_len)) {
                     pefree(entry.filename, entry.is_persistent);
                     PHAR_ZIP_FAIL("unable to read in filename from central directory, truncated");
              }

              entry.filename[entry.filename_len] = '\0';

              if (entry.filename[entry.filename_len - 1] == '/') {
                     entry.is_dir = 1;
                     entry.filename_len--;
                     entry.flags |= PHAR_ENT_PERM_DEF_DIR;
              } else {
                     entry.is_dir = 0;
              }

              if (entry.filename_len == sizeof(".phar/signature.bin")-1 && !strncmp(entry.filename, ".phar/signature.bin", sizeof(".phar/signature.bin")-1)) {
                     size_t read;
                     php_stream *sigfile;
                     off_t now;
                     char *sig;

                     now = php_stream_tell(fp);
                     pefree(entry.filename, entry.is_persistent);
                     sigfile = php_stream_fopen_tmpfile();
                     if (!sigfile) {
                            PHAR_ZIP_FAIL("couldn't open temporary file");
                     }

                     php_stream_seek(fp, 0, SEEK_SET);
                     /* copy file contents + local headers and zip comment, if any, to be hashed for signature */
                     phar_stream_copy_to_stream(fp, sigfile, entry.header_offset, NULL);
                     /* seek to central directory */
                     php_stream_seek(fp, PHAR_GET_32(locator.cdir_offset), SEEK_SET);
                     /* copy central directory header */
                     phar_stream_copy_to_stream(fp, sigfile, beforeus - PHAR_GET_32(locator.cdir_offset), NULL);
                     if (metadata) {
                            php_stream_write(sigfile, metadata, PHAR_GET_16(locator.comment_len));
                     }
                     php_stream_seek(fp, sizeof(phar_zip_file_header) + entry.header_offset + entry.filename_len + PHAR_GET_16(zipentry.extra_len), SEEK_SET);
                     sig = (char *) emalloc(entry.uncompressed_filesize);
                     read = php_stream_read(fp, sig, entry.uncompressed_filesize);
                     if (read != entry.uncompressed_filesize) {
                            php_stream_close(sigfile);
                            efree(sig);
                            PHAR_ZIP_FAIL("signature cannot be read");
                     }
                     mydata->sig_flags = PHAR_GET_32(sig);
                     if (FAILURE == phar_verify_signature(sigfile, php_stream_tell(sigfile), mydata->sig_flags, sig + 8, entry.uncompressed_filesize - 8, fname, &mydata->signature, &mydata->sig_len, error TSRMLS_CC)) {
                            efree(sig);
                            if (error) {
                                   char *save;
                                   php_stream_close(sigfile);
                                   spprintf(&save, 4096, "signature cannot be verified: %s", *error);
                                   efree(*error);
                                   PHAR_ZIP_FAIL_FREE(save, save);
                            } else {
                                   php_stream_close(sigfile);
                                   PHAR_ZIP_FAIL("signature cannot be verified");
                            }
                     }
                     php_stream_close(sigfile);
                     efree(sig);
                     /* signature checked out, let's ensure this is the last file in the phar */
                     if (i != PHAR_GET_16(locator.count) - 1) {
                            PHAR_ZIP_FAIL("entries exist after signature, invalid phar");
                     }

                     continue;
              }

              phar_add_virtual_dirs(mydata, entry.filename, entry.filename_len TSRMLS_CC);

              if (PHAR_GET_16(zipentry.extra_len)) {
                     off_t loc = php_stream_tell(fp);
                     if (FAILURE == phar_zip_process_extra(fp, &entry, PHAR_GET_16(zipentry.extra_len) TSRMLS_CC)) {
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("Unable to process extra field header for file in central directory");
                     }
                     php_stream_seek(fp, loc + PHAR_GET_16(zipentry.extra_len), SEEK_SET);
              }

              switch (PHAR_GET_16(zipentry.compressed)) {
                     case PHAR_ZIP_COMP_NONE :
                            /* compression flag already set */
                            break;
                     case PHAR_ZIP_COMP_DEFLATE :
                            entry.flags |= PHAR_ENT_COMPRESSED_GZ;
                            if (!PHAR_G(has_zlib)) {
                                   pefree(entry.filename, entry.is_persistent);
                                   PHAR_ZIP_FAIL("zlib extension is required");
                            }
                            break;
                     case PHAR_ZIP_COMP_BZIP2 :
                            entry.flags |= PHAR_ENT_COMPRESSED_BZ2;
                            if (!PHAR_G(has_bz2)) {
                                   pefree(entry.filename, entry.is_persistent);
                                   PHAR_ZIP_FAIL("bzip2 extension is required");
                            }
                            break;
                     case 1 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (Shrunk) used in this zip");
                     case 2 :
                     case 3 :
                     case 4 :
                     case 5 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (Reduce) used in this zip");
                     case 6 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (Implode) used in this zip");
                     case 7 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (Tokenize) used in this zip");
                     case 9 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (Deflate64) used in this zip");
                     case 10 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (PKWare Implode/old IBM TERSE) used in this zip");
                     case 14 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (LZMA) used in this zip");
                     case 18 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (IBM TERSE) used in this zip");
                     case 19 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (IBM LZ77) used in this zip");
                     case 97 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (WavPack) used in this zip");
                     case 98 :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (PPMd) used in this zip");
                     default :
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unsupported compression method (unknown) used in this zip");
              }

              /* get file metadata */
              if (PHAR_GET_16(zipentry.comment_len)) {
                     if (PHAR_GET_16(zipentry.comment_len) != php_stream_read(fp, buf, PHAR_GET_16(zipentry.comment_len))) {
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("unable to read in file comment, truncated");
                     }

                     p = buf;
                     entry.metadata_len = PHAR_GET_16(zipentry.comment_len);

                     if (phar_parse_metadata(&p, &(entry.metadata), PHAR_GET_16(zipentry.comment_len) TSRMLS_CC) == FAILURE) {
                            entry.metadata_len = 0;
                            /* if not valid serialized data, it is a regular string */

                            if (entry.is_persistent) {
                                   ALLOC_PERMANENT_ZVAL(entry.metadata);
                            } else {
                                   ALLOC_ZVAL(entry.metadata);
                            }

                            INIT_ZVAL(*entry.metadata);
                            ZVAL_STRINGL(entry.metadata, pestrndup(buf, PHAR_GET_16(zipentry.comment_len), entry.is_persistent), PHAR_GET_16(zipentry.comment_len), 0);
                     }
              } else {
                     entry.metadata = NULL;
              }

              if (!actual_alias && entry.filename_len == sizeof(".phar/alias.txt")-1 && !strncmp(entry.filename, ".phar/alias.txt", sizeof(".phar/alias.txt")-1)) {
                     php_stream_filter *filter;
                     off_t saveloc;
                     /* verify local file header */
                     phar_zip_file_header local;

                     /* archive alias found */
                     saveloc = php_stream_tell(fp);
                     php_stream_seek(fp, PHAR_GET_32(zipentry.offset), SEEK_SET);

                     if (sizeof(local) != php_stream_read(fp, (char *) &local, sizeof(local))) {
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("phar error: internal corruption of zip-based phar (cannot read local file header for alias)");
                     }

                     /* verify local header */
                     if (entry.filename_len != PHAR_GET_16(local.filename_len) || entry.crc32 != PHAR_GET_32(local.crc32) || entry.uncompressed_filesize != PHAR_GET_32(local.uncompsize) || entry.compressed_filesize != PHAR_GET_32(local.compsize)) {
                            pefree(entry.filename, entry.is_persistent);
                            PHAR_ZIP_FAIL("phar error: internal corruption of zip-based phar (local header of alias does not match central directory)");
                     }

                     /* construct actual offset to file start - local extra_len can be different from central extra_len */
                     entry.offset = entry.offset_abs =
                            sizeof(local) + entry.header_offset + PHAR_GET_16(local.filename_len) + PHAR_GET_16(local.extra_len);
#if PHP_VERSION_ID < 50207
                     /* work around Bug #46147 */
                     fp->writepos = fp->readpos = 0;
#endif
                     php_stream_seek(fp, entry.offset, SEEK_SET);
                     /* these next lines should be for php < 5.2.6 after 5.3 filters are fixed */
                     fp->writepos = 0;
                     fp->readpos = 0;
                     php_stream_seek(fp, entry.offset, SEEK_SET);
                     fp->writepos = 0;
                     fp->readpos = 0;
                     /* the above lines should be for php < 5.2.6 after 5.3 filters are fixed */

                     mydata->alias_len = entry.uncompressed_filesize;

                     if (entry.flags & PHAR_ENT_COMPRESSED_GZ) {
                            filter = php_stream_filter_create("zlib.inflate", NULL, php_stream_is_persistent(fp) TSRMLS_CC);

                            if (!filter) {
                                   pefree(entry.filename, entry.is_persistent);
                                   PHAR_ZIP_FAIL("unable to decompress alias, zlib filter creation failed");
                            }

                            php_stream_filter_append(&fp->readfilters, filter);

#if PHP_MAJOR_VERSION >= 6
                            if (!(entry.uncompressed_filesize = php_stream_copy_to_mem(fp, (void **) &actual_alias, entry.uncompressed_filesize, 0)) || !actual_alias) {
#else
                            if (!(entry.uncompressed_filesize = php_stream_copy_to_mem(fp, &actual_alias, entry.uncompressed_filesize, 0)) || !actual_alias) {
#endif
                                   pefree(entry.filename, entry.is_persistent);
#if PHP_VERSION_ID < 50207
                                   PHAR_ZIP_FAIL("unable to read in alias, truncated (PHP 5.2.7 and newer has a potential fix for this problem)");
#endif
                                   PHAR_ZIP_FAIL("unable to read in alias, truncated");
                            }

                            php_stream_filter_flush(filter, 1);
                            php_stream_filter_remove(filter, 1 TSRMLS_CC);

                     } else if (entry.flags & PHAR_ENT_COMPRESSED_BZ2) {
                            filter = php_stream_filter_create("bzip2.decompress", NULL, php_stream_is_persistent(fp) TSRMLS_CC);

                            if (!filter) {
                                   pefree(entry.filename, entry.is_persistent);
                                   PHAR_ZIP_FAIL("unable to read in alias, bzip2 filter creation failed");
                            }

                            php_stream_filter_append(&fp->readfilters, filter);

#if PHP_MAJOR_VERSION >= 6
                            if (!(entry.uncompressed_filesize = php_stream_copy_to_mem(fp, (void **) &actual_alias, entry.uncompressed_filesize, 0)) || !actual_alias) {
#else
                            if (!(entry.uncompressed_filesize = php_stream_copy_to_mem(fp, &actual_alias, entry.uncompressed_filesize, 0)) || !actual_alias) {
#endif
                                   pefree(entry.filename, entry.is_persistent);
#if PHP_VERSION_ID < 50207
                                   PHAR_ZIP_FAIL("unable to read in alias, truncated (PHP 5.2.7 and newer has a potential fix for this problem)");
#endif
                                   PHAR_ZIP_FAIL("unable to read in alias, truncated");
                            }

                            php_stream_filter_flush(filter, 1);
                            php_stream_filter_remove(filter, 1 TSRMLS_CC);
                     } else {
#if PHP_MAJOR_VERSION >= 6
                            if (!(entry.uncompressed_filesize = php_stream_copy_to_mem(fp, (void **) &actual_alias, entry.uncompressed_filesize, 0)) || !actual_alias) {
#else
                            if (!(entry.uncompressed_filesize = php_stream_copy_to_mem(fp, &actual_alias, entry.uncompressed_filesize, 0)) || !actual_alias) {
#endif
                                   pefree(entry.filename, entry.is_persistent);
                                   PHAR_ZIP_FAIL("unable to read in alias, truncated");
                            }
                     }

                     /* return to central directory parsing */
                     php_stream_seek(fp, saveloc, SEEK_SET);
              }

              phar_set_inode(&entry TSRMLS_CC);
              zend_hash_add(&mydata->manifest, entry.filename, entry.filename_len, (void *)&entry,sizeof(phar_entry_info), NULL);
       }

       mydata->fp = fp;

       if (zend_hash_exists(&(mydata->manifest), ".phar/stub.php", sizeof(".phar/stub.php")-1)) {
              mydata->is_data = 0;
       } else {
              mydata->is_data = 1;
       }

       zend_hash_add(&(PHAR_GLOBALS->phar_fname_map), mydata->fname, fname_len, (void*)&mydata, sizeof(phar_archive_data*), NULL);

       if (actual_alias) {
              phar_archive_data **fd_ptr;

              if (!phar_validate_alias(actual_alias, mydata->alias_len)) {
                     if (error) {
                            spprintf(error, 4096, "phar error: invalid alias \"%s\" in zip-based phar \"%s\"", actual_alias, fname);
                     }
                     efree(actual_alias);
                     zend_hash_del(&(PHAR_GLOBALS->phar_fname_map), mydata->fname, fname_len);
                     return FAILURE;
              }

              mydata->is_temporary_alias = 0;

              if (SUCCESS == zend_hash_find(&(PHAR_GLOBALS->phar_alias_map), actual_alias, mydata->alias_len, (void **)&fd_ptr)) {
                     if (SUCCESS != phar_free_alias(*fd_ptr, actual_alias, mydata->alias_len TSRMLS_CC)) {
                            if (error) {
                                   spprintf(error, 4096, "phar error: Unable to add zip-based phar \"%s\" with implicit alias, alias is already in use", fname);
                            }
                            efree(actual_alias);
                            zend_hash_del(&(PHAR_GLOBALS->phar_fname_map), mydata->fname, fname_len);
                            return FAILURE;
                     }
              }

              mydata->alias = entry.is_persistent ? pestrndup(actual_alias, mydata->alias_len, 1) : actual_alias;

              if (entry.is_persistent) {
                     efree(actual_alias);
              }

              zend_hash_add(&(PHAR_GLOBALS->phar_alias_map), actual_alias, mydata->alias_len, (void*)&mydata, sizeof(phar_archive_data*), NULL);
       } else {
              phar_archive_data **fd_ptr;

              if (alias_len) {
                     if (SUCCESS == zend_hash_find(&(PHAR_GLOBALS->phar_alias_map), alias, alias_len, (void **)&fd_ptr)) {
                            if (SUCCESS != phar_free_alias(*fd_ptr, alias, alias_len TSRMLS_CC)) {
                                   if (error) {
                                          spprintf(error, 4096, "phar error: Unable to add zip-based phar \"%s\" with explicit alias, alias is already in use", fname);
                                   }
                                   zend_hash_del(&(PHAR_GLOBALS->phar_fname_map), mydata->fname, fname_len);
                                   return FAILURE;
                            }
                     }

                     zend_hash_add(&(PHAR_GLOBALS->phar_alias_map), actual_alias, mydata->alias_len, (void*)&mydata, sizeof(phar_archive_data*), NULL);
                     mydata->alias = pestrndup(alias, alias_len, mydata->is_persistent);
                     mydata->alias_len = alias_len;
              } else {
                     mydata->alias = pestrndup(mydata->fname, fname_len, mydata->is_persistent);
                     mydata->alias_len = fname_len;
              }

              mydata->is_temporary_alias = 1;
       }

       if (pphar) {
              *pphar = mydata;
       }

       return SUCCESS;
}

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static void phar_write_16 ( char  buffer[2],
php_uint32  value 
) [inline, static]

Definition at line 34 of file zip.c.

{
       buffer[1] = (unsigned char) ((value & 0xff00) >> 8);
       buffer[0] = (unsigned char) (value & 0xff);
}
static void phar_write_32 ( char  buffer[4],
php_uint32  value 
) [inline, static]

Definition at line 27 of file zip.c.

{
       buffer[3] = (unsigned char) ((value & 0xff000000) >> 24);
       buffer[2] = (unsigned char) ((value & 0xff0000) >> 16);
       buffer[1] = (unsigned char) ((value & 0xff00) >> 8);
       buffer[0] = (unsigned char) (value & 0xff);
}
static int phar_zip_applysignature ( phar_archive_data *  phar,
struct _phar_zip_pass pass,
smart_str *metadata  TSRMLS_DC 
) [static]

Definition at line 1098 of file zip.c.

{
       /* add signature for executable tars or tars explicitly set with setSignatureAlgorithm */
       if (!phar->is_data || phar->sig_flags) {
              int signature_length;
              char *signature, sigbuf[8];
              phar_entry_info entry = {0};
              php_stream *newfile;
              off_t tell, st;

              newfile = php_stream_fopen_tmpfile();
              st = tell = php_stream_tell(pass->filefp);
              /* copy the local files, central directory, and the zip comment to generate the hash */
              php_stream_seek(pass->filefp, 0, SEEK_SET);
              phar_stream_copy_to_stream(pass->filefp, newfile, tell, NULL);
              tell = php_stream_tell(pass->centralfp);
              php_stream_seek(pass->centralfp, 0, SEEK_SET);
              phar_stream_copy_to_stream(pass->centralfp, newfile, tell, NULL);
              if (metadata->c) {
                     php_stream_write(newfile, metadata->c, metadata->len);
              }

              if (FAILURE == phar_create_signature(phar, newfile, &signature, &signature_length, pass->error TSRMLS_CC)) {
                     if (pass->error) {
                            char *save = *(pass->error);
                            spprintf(pass->error, 0, "phar error: unable to write signature to zip-based phar: %s", save);
                            efree(save);
                     }

                     php_stream_close(newfile);
                     return FAILURE;
              }

              entry.filename = ".phar/signature.bin";
              entry.filename_len = sizeof(".phar/signature.bin")-1;
              entry.fp = php_stream_fopen_tmpfile();
              entry.fp_type = PHAR_MOD;
              entry.is_modified = 1;

              PHAR_SET_32(sigbuf, phar->sig_flags);
              PHAR_SET_32(sigbuf + 4, signature_length);

              if (8 != (int)php_stream_write(entry.fp, sigbuf, 8) || signature_length != (int)php_stream_write(entry.fp, signature, signature_length)) {
                     efree(signature);
                     if (pass->error) {
                            spprintf(pass->error, 0, "phar error: unable to write signature to zip-based phar %s", phar->fname);
                     }

                     php_stream_close(newfile);
                     return FAILURE;
              }

              efree(signature);
              entry.uncompressed_filesize = entry.compressed_filesize = signature_length + 8;
              entry.phar = phar;
              /* throw out return value and write the signature */
              phar_zip_changed_apply((void *)&entry, (void *)pass TSRMLS_CC);
              php_stream_close(newfile);

              if (pass->error && *(pass->error)) {
                     /* error is set by writeheaders */
                     php_stream_close(newfile);
                     return FAILURE;
              }
       } /* signature */
       return SUCCESS;
}

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static int phar_zip_changed_apply ( void *  data,
void *arg  TSRMLS_DC 
) [static]

Definition at line 786 of file zip.c.

{
       phar_entry_info *entry;
       phar_zip_file_header local;
       phar_zip_unix3 perms;
       phar_zip_central_dir_file central;
       struct _phar_zip_pass *p;
       php_uint32 newcrc32;
       off_t offset;
       int not_really_modified = 0;
       entry = (phar_entry_info *)data;
       p = (struct _phar_zip_pass*) arg;

       if (entry->is_mounted) {
              return ZEND_HASH_APPLY_KEEP;
       }

       if (entry->is_deleted) {
              if (entry->fp_refcount <= 0) {
                     return ZEND_HASH_APPLY_REMOVE;
              } else {
                     /* we can't delete this in-memory until it is closed */
                     return ZEND_HASH_APPLY_KEEP;
              }
       }

       phar_add_virtual_dirs(entry->phar, entry->filename, entry->filename_len TSRMLS_CC);
       memset(&local, 0, sizeof(local));
       memset(&central, 0, sizeof(central));
       memset(&perms, 0, sizeof(perms));
       strncpy(local.signature, "PK\3\4", 4);
       strncpy(central.signature, "PK\1\2", 4);
       PHAR_SET_16(central.extra_len, sizeof(perms));
       PHAR_SET_16(local.extra_len, sizeof(perms));
       perms.tag[0] = 'n';
       perms.tag[1] = 'u';
       PHAR_SET_16(perms.size, sizeof(perms) - 4);
       PHAR_SET_16(perms.perms, entry->flags & PHAR_ENT_PERM_MASK);
       {
              php_uint32 crc = (php_uint32) ~0;
              CRC32(crc, perms.perms[0]);
              CRC32(crc, perms.perms[1]);
              PHAR_SET_32(perms.crc32, ~crc);
       }

       if (entry->flags & PHAR_ENT_COMPRESSED_GZ) {
              PHAR_SET_16(central.compressed, PHAR_ZIP_COMP_DEFLATE);
              PHAR_SET_16(local.compressed, PHAR_ZIP_COMP_DEFLATE);
       }

       if (entry->flags & PHAR_ENT_COMPRESSED_BZ2) {
              PHAR_SET_16(central.compressed, PHAR_ZIP_COMP_BZIP2);
              PHAR_SET_16(local.compressed, PHAR_ZIP_COMP_BZIP2);
       }

       /* do not use PHAR_GET_16 on either field of the next line */
       phar_zip_u2d_time(entry->timestamp, local.timestamp, local.datestamp);
       memcpy(central.timestamp, local.timestamp, sizeof(local.timestamp));
       memcpy(central.datestamp, local.datestamp, sizeof(local.datestamp));
       PHAR_SET_16(central.filename_len, entry->filename_len + (entry->is_dir ? 1 : 0));
       PHAR_SET_16(local.filename_len, entry->filename_len + (entry->is_dir ? 1 : 0));
       PHAR_SET_32(central.offset, php_stream_tell(p->filefp));

       /* do extra field for perms later */
       if (entry->is_modified) {
              php_uint32 loc;
              php_stream_filter *filter;
              php_stream *efp;

              if (entry->is_dir) {
                     entry->is_modified = 0;
                     if (entry->fp_type == PHAR_MOD && entry->fp != entry->phar->fp && entry->fp != entry->phar->ufp) {
                            php_stream_close(entry->fp);
                            entry->fp = NULL;
                            entry->fp_type = PHAR_FP;
                     }
                     goto continue_dir;
              }

              if (FAILURE == phar_open_entry_fp(entry, p->error, 0 TSRMLS_CC)) {
                     spprintf(p->error, 0, "unable to open file contents of file \"%s\" in zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              /* we can be modified and already be compressed, such as when chmod() is executed */
              if (entry->flags & PHAR_ENT_COMPRESSION_MASK && (entry->old_flags == entry->flags || !entry->old_flags)) {
                     not_really_modified = 1;
                     goto is_compressed;
              }

              if (-1 == phar_seek_efp(entry, 0, SEEK_SET, 0, 0 TSRMLS_CC)) {
                     spprintf(p->error, 0, "unable to seek to start of file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              efp = phar_get_efp(entry, 0 TSRMLS_CC);
              newcrc32 = ~0;

              for (loc = 0;loc < entry->uncompressed_filesize; ++loc) {
                     CRC32(newcrc32, php_stream_getc(efp));
              }

              entry->crc32 = ~newcrc32;
              PHAR_SET_32(central.uncompsize, entry->uncompressed_filesize);
              PHAR_SET_32(local.uncompsize, entry->uncompressed_filesize);

              if (!(entry->flags & PHAR_ENT_COMPRESSION_MASK)) {
                     /* not compressed */
                     entry->compressed_filesize = entry->uncompressed_filesize;
                     PHAR_SET_32(central.compsize, entry->uncompressed_filesize);
                     PHAR_SET_32(local.compsize, entry->uncompressed_filesize);
                     goto not_compressed;
              }

              filter = php_stream_filter_create(phar_compress_filter(entry, 0), NULL, 0 TSRMLS_CC);

              if (!filter) {
                     if (entry->flags & PHAR_ENT_COMPRESSED_GZ) {
                            spprintf(p->error, 0, "unable to gzip compress file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     } else {
                            spprintf(p->error, 0, "unable to bzip2 compress file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     }
                     return ZEND_HASH_APPLY_STOP;
              }

              /* create new file that holds the compressed version */
              /* work around inability to specify freedom in write and strictness
              in read count */
              entry->cfp = php_stream_fopen_tmpfile();

              if (!entry->cfp) {
                     spprintf(p->error, 0, "unable to create temporary file for file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              php_stream_flush(efp);

              if (-1 == phar_seek_efp(entry, 0, SEEK_SET, 0, 0 TSRMLS_CC)) {
                     spprintf(p->error, 0, "unable to seek to start of file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              php_stream_filter_append((&entry->cfp->writefilters), filter);

              if (SUCCESS != phar_stream_copy_to_stream(efp, entry->cfp, entry->uncompressed_filesize, NULL)) {
                     spprintf(p->error, 0, "unable to copy compressed file contents of file \"%s\" while creating new phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              php_stream_filter_flush(filter, 1);
              php_stream_flush(entry->cfp);
              php_stream_filter_remove(filter, 1 TSRMLS_CC);
              php_stream_seek(entry->cfp, 0, SEEK_END);
              entry->compressed_filesize = (php_uint32) php_stream_tell(entry->cfp);
              PHAR_SET_32(central.compsize, entry->compressed_filesize);
              PHAR_SET_32(local.compsize, entry->compressed_filesize);
              /* generate crc on compressed file */
              php_stream_rewind(entry->cfp);
              entry->old_flags = entry->flags;
              entry->is_modified = 1;
       } else {
is_compressed:
              PHAR_SET_32(central.uncompsize, entry->uncompressed_filesize);
              PHAR_SET_32(local.uncompsize, entry->uncompressed_filesize);
              PHAR_SET_32(central.compsize, entry->compressed_filesize);
              PHAR_SET_32(local.compsize, entry->compressed_filesize);

              if (-1 == php_stream_seek(p->old, entry->offset_abs, SEEK_SET)) {
                     spprintf(p->error, 0, "unable to seek to start of file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }
       }
not_compressed:
       PHAR_SET_32(central.crc32, entry->crc32);
       PHAR_SET_32(local.crc32, entry->crc32);
continue_dir:
       /* set file metadata */
       if (entry->metadata) {
              php_serialize_data_t metadata_hash;

              if (entry->metadata_str.c) {
                     smart_str_free(&entry->metadata_str);
              }
              entry->metadata_str.c = 0;
              entry->metadata_str.len = 0;
              PHP_VAR_SERIALIZE_INIT(metadata_hash);
              php_var_serialize(&entry->metadata_str, &entry->metadata, &metadata_hash TSRMLS_CC);
              PHP_VAR_SERIALIZE_DESTROY(metadata_hash);
              PHAR_SET_16(central.comment_len, entry->metadata_str.len);
       }

       entry->header_offset = php_stream_tell(p->filefp);
       offset = entry->header_offset + sizeof(local) + entry->filename_len + (entry->is_dir ? 1 : 0) + sizeof(perms);

       if (sizeof(local) != php_stream_write(p->filefp, (char *)&local, sizeof(local))) {
              spprintf(p->error, 0, "unable to write local file header of file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
              return ZEND_HASH_APPLY_STOP;
       }

       if (sizeof(central) != php_stream_write(p->centralfp, (char *)&central, sizeof(central))) {
              spprintf(p->error, 0, "unable to write central directory entry for file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
              return ZEND_HASH_APPLY_STOP;
       }

       if (entry->is_dir) {
              if (entry->filename_len != php_stream_write(p->filefp, entry->filename, entry->filename_len)) {
                     spprintf(p->error, 0, "unable to write filename to local directory entry for directory \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              if (1 != php_stream_write(p->filefp, "/", 1)) {
                     spprintf(p->error, 0, "unable to write filename to local directory entry for directory \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              if (entry->filename_len != php_stream_write(p->centralfp, entry->filename, entry->filename_len)) {
                     spprintf(p->error, 0, "unable to write filename to central directory entry for directory \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              if (1 != php_stream_write(p->centralfp, "/", 1)) {
                     spprintf(p->error, 0, "unable to write filename to central directory entry for directory \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }
       } else {
              if (entry->filename_len != php_stream_write(p->filefp, entry->filename, entry->filename_len)) {
                     spprintf(p->error, 0, "unable to write filename to local directory entry for file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }

              if (entry->filename_len != php_stream_write(p->centralfp, entry->filename, entry->filename_len)) {
                     spprintf(p->error, 0, "unable to write filename to central directory entry for file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }
       }

       if (sizeof(perms) != php_stream_write(p->filefp, (char *)&perms, sizeof(perms))) {
              spprintf(p->error, 0, "unable to write local extra permissions file header of file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
              return ZEND_HASH_APPLY_STOP;
       }

       if (sizeof(perms) != php_stream_write(p->centralfp, (char *)&perms, sizeof(perms))) {
              spprintf(p->error, 0, "unable to write central extra permissions file header of file \"%s\" to zip-based phar \"%s\"", entry->filename, entry->phar->fname);
              return ZEND_HASH_APPLY_STOP;
       }

       if (!not_really_modified && entry->is_modified) {
              if (entry->cfp) {
                     if (SUCCESS != phar_stream_copy_to_stream(entry->cfp, p->filefp, entry->compressed_filesize, NULL)) {
                            spprintf(p->error, 0, "unable to write compressed contents of file \"%s\" in zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                            return ZEND_HASH_APPLY_STOP;
                     }

                     php_stream_close(entry->cfp);
                     entry->cfp = NULL;
              } else {
                     if (FAILURE == phar_open_entry_fp(entry, p->error, 0 TSRMLS_CC)) {
                            return ZEND_HASH_APPLY_STOP;
                     }

                     phar_seek_efp(entry, 0, SEEK_SET, 0, 0 TSRMLS_CC);

                     if (SUCCESS != phar_stream_copy_to_stream(phar_get_efp(entry, 0 TSRMLS_CC), p->filefp, entry->uncompressed_filesize, NULL)) {
                            spprintf(p->error, 0, "unable to write contents of file \"%s\" in zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                            return ZEND_HASH_APPLY_STOP;
                     }
              }

              if (entry->fp_type == PHAR_MOD && entry->fp != entry->phar->fp && entry->fp != entry->phar->ufp && entry->fp_refcount == 0) {
                     php_stream_close(entry->fp);
              }

              entry->is_modified = 0;
       } else {
              entry->is_modified = 0;
              if (entry->fp_refcount) {
                     /* open file pointers refer to this fp, do not free the stream */
                     switch (entry->fp_type) {
                            case PHAR_FP:
                                   p->free_fp = 0;
                                   break;
                            case PHAR_UFP:
                                   p->free_ufp = 0;
                            default:
                                   break;
                     }
              }

              if (!entry->is_dir && entry->compressed_filesize && SUCCESS != phar_stream_copy_to_stream(p->old, p->filefp, entry->compressed_filesize, NULL)) {
                     spprintf(p->error, 0, "unable to copy contents of file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     return ZEND_HASH_APPLY_STOP;
              }
       }

       entry->fp = NULL;
       entry->offset = entry->offset_abs = offset;
       entry->fp_type = PHAR_FP;

       if (entry->metadata_str.c) {
              if (entry->metadata_str.len != php_stream_write(p->centralfp, entry->metadata_str.c, entry->metadata_str.len)) {
                     spprintf(p->error, 0, "unable to write metadata as file comment for file \"%s\" while creating zip-based phar \"%s\"", entry->filename, entry->phar->fname);
                     smart_str_free(&entry->metadata_str);
                     return ZEND_HASH_APPLY_STOP;
              }

              smart_str_free(&entry->metadata_str);
       }

       return ZEND_HASH_APPLY_KEEP;
}

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static time_t phar_zip_d2u_time ( char *  cdtime,
char *  cddate 
) [static]

Definition at line 123 of file zip.c.

{
       int dtime = PHAR_GET_16(cdtime), ddate = PHAR_GET_16(cddate);
       struct tm *tm, tmbuf;
       time_t now;

       now = time(NULL);
       tm = php_localtime_r(&now, &tmbuf);

       tm->tm_year = ((ddate>>9)&127) + 1980 - 1900;
       tm->tm_mon = ((ddate>>5)&15) - 1;
       tm->tm_mday = ddate&31;

       tm->tm_hour = (dtime>>11)&31;
       tm->tm_min = (dtime>>5)&63;
       tm->tm_sec = (dtime<<1)&62;

       return mktime(tm);
}

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int phar_zip_flush ( phar_archive_data *  phar,
char *  user_stub,
long  len,
int  defaultstub,
char **error  TSRMLS_DC 
)

Definition at line 1168 of file zip.c.

{
       char *pos;
       smart_str main_metadata_str = {0};
       static const char newstub[] = "<?php // zip-based phar archive stub file\n__HALT_COMPILER();";
       char halt_stub[] = "__HALT_COMPILER();";
       char *tmp;
       
       php_stream *stubfile, *oldfile;
       php_serialize_data_t metadata_hash;
       int free_user_stub, closeoldfile = 0;
       phar_entry_info entry = {0};
       char *temperr = NULL;
       struct _phar_zip_pass pass;
       phar_zip_dir_end eocd;
       php_uint32 cdir_size, cdir_offset;

       pass.error = &temperr;
       entry.flags = PHAR_ENT_PERM_DEF_FILE;
       entry.timestamp = time(NULL);
       entry.is_modified = 1;
       entry.is_zip = 1;
       entry.phar = phar;
       entry.fp_type = PHAR_MOD;

       if (phar->is_persistent) {
              if (error) {
                     spprintf(error, 0, "internal error: attempt to flush cached zip-based phar \"%s\"", phar->fname);
              }
              return EOF;
       }

       if (phar->is_data) {
              goto nostub;
       }

       /* set alias */
       if (!phar->is_temporary_alias && phar->alias_len) {
              entry.fp = php_stream_fopen_tmpfile();

              if (phar->alias_len != (int)php_stream_write(entry.fp, phar->alias, phar->alias_len)) {
                     if (error) {
                            spprintf(error, 0, "unable to set alias in zip-based phar \"%s\"", phar->fname);
                     }
                     return EOF;
              }

              entry.uncompressed_filesize = entry.compressed_filesize = phar->alias_len;
              entry.filename = estrndup(".phar/alias.txt", sizeof(".phar/alias.txt")-1);
              entry.filename_len = sizeof(".phar/alias.txt")-1;

              if (SUCCESS != zend_hash_update(&phar->manifest, entry.filename, entry.filename_len, (void*)&entry, sizeof(phar_entry_info), NULL)) {
                     if (error) {
                            spprintf(error, 0, "unable to set alias in zip-based phar \"%s\"", phar->fname);
                     }
                     return EOF;
              }
       } else {
              zend_hash_del(&phar->manifest, ".phar/alias.txt", sizeof(".phar/alias.txt")-1);
       }

       /* register alias */
       if (phar->alias_len) {
              if (FAILURE == phar_get_archive(&phar, phar->fname, phar->fname_len, phar->alias, phar->alias_len, error TSRMLS_CC)) {
                     return EOF;
              }
       }

       /* set stub */
       if (user_stub && !defaultstub) {
              if (len < 0) {
                     /* resource passed in */
                     if (!(php_stream_from_zval_no_verify(stubfile, (zval **)user_stub))) {
                            if (error) {
                                   spprintf(error, 0, "unable to access resource to copy stub to new zip-based phar \"%s\"", phar->fname);
                            }
                            return EOF;
                     }

                     if (len == -1) {
                            len = PHP_STREAM_COPY_ALL;
                     } else {
                            len = -len;
                     }

                     user_stub = 0;

#if PHP_MAJOR_VERSION >= 6
                     if (!(len = php_stream_copy_to_mem(stubfile, (void **) &user_stub, len, 0)) || !user_stub) {
#else
                     if (!(len = php_stream_copy_to_mem(stubfile, &user_stub, len, 0)) || !user_stub) {
#endif
                            if (error) {
                                   spprintf(error, 0, "unable to read resource to copy stub to new zip-based phar \"%s\"", phar->fname);
                            }
                            return EOF;
                     }
                     free_user_stub = 1;
              } else {
                     free_user_stub = 0;
              }

              tmp = estrndup(user_stub, len);
              if ((pos = php_stristr(tmp, halt_stub, len, sizeof(halt_stub) - 1)) == NULL) {
                     efree(tmp);
                     if (error) {
                            spprintf(error, 0, "illegal stub for zip-based phar \"%s\"", phar->fname);
                     }
                     if (free_user_stub) {
                            efree(user_stub);
                     }
                     return EOF;
              }
              pos = user_stub + (pos - tmp);
              efree(tmp);

              len = pos - user_stub + 18;
              entry.fp = php_stream_fopen_tmpfile();
              entry.uncompressed_filesize = len + 5;

              if ((size_t)len != php_stream_write(entry.fp, user_stub, len)
              ||            5 != php_stream_write(entry.fp, " ?>\r\n", 5)) {
                     if (error) {
                            spprintf(error, 0, "unable to create stub from string in new zip-based phar \"%s\"", phar->fname);
                     }
                     if (free_user_stub) {
                            efree(user_stub);
                     }
                     php_stream_close(entry.fp);
                     return EOF;
              }

              entry.filename = estrndup(".phar/stub.php", sizeof(".phar/stub.php")-1);
              entry.filename_len = sizeof(".phar/stub.php")-1;

              if (SUCCESS != zend_hash_update(&phar->manifest, entry.filename, entry.filename_len, (void*)&entry, sizeof(phar_entry_info), NULL)) {
                     if (free_user_stub) {
                            efree(user_stub);
                     }
                     if (error) {
                            spprintf(error, 0, "unable to set stub in zip-based phar \"%s\"", phar->fname);
                     }
                     return EOF;
              }

              if (free_user_stub) {
                     efree(user_stub);
              }
       } else {
              /* Either this is a brand new phar (add the stub), or the default stub is required (overwrite the stub) */
              entry.fp = php_stream_fopen_tmpfile();

              if (sizeof(newstub)-1 != php_stream_write(entry.fp, newstub, sizeof(newstub)-1)) {
                     php_stream_close(entry.fp);
                     if (error) {
                            spprintf(error, 0, "unable to %s stub in%szip-based phar \"%s\", failed", user_stub ? "overwrite" : "create", user_stub ? " " : " new ", phar->fname);
                     }
                     return EOF;
              }

              entry.uncompressed_filesize = entry.compressed_filesize = sizeof(newstub) - 1;
              entry.filename = estrndup(".phar/stub.php", sizeof(".phar/stub.php")-1);
              entry.filename_len = sizeof(".phar/stub.php")-1;

              if (!defaultstub) {
                     if (!zend_hash_exists(&phar->manifest, ".phar/stub.php", sizeof(".phar/stub.php")-1)) {
                            if (SUCCESS != zend_hash_add(&phar->manifest, entry.filename, entry.filename_len, (void*)&entry, sizeof(phar_entry_info), NULL)) {
                                   php_stream_close(entry.fp);
                                   efree(entry.filename);
                                   if (error) {
                                          spprintf(error, 0, "unable to create stub in zip-based phar \"%s\"", phar->fname);
                                   }
                                   return EOF;
                            }
                     } else {
                            php_stream_close(entry.fp);
                            efree(entry.filename);
                     }
              } else {
                     if (SUCCESS != zend_hash_update(&phar->manifest, entry.filename, entry.filename_len, (void*)&entry, sizeof(phar_entry_info), NULL)) {
                            php_stream_close(entry.fp);
                            efree(entry.filename);
                            if (error) {
                                   spprintf(error, 0, "unable to overwrite stub in zip-based phar \"%s\"", phar->fname);
                            }
                            return EOF;
                     }
              }
       }
nostub:
       if (phar->fp && !phar->is_brandnew) {
              oldfile = phar->fp;
              closeoldfile = 0;
              php_stream_rewind(oldfile);
       } else {
              oldfile = php_stream_open_wrapper(phar->fname, "rb", 0, NULL);
              closeoldfile = oldfile != NULL;
       }

       /* save modified files to the zip */
       pass.old = oldfile;
       pass.filefp = php_stream_fopen_tmpfile();

       if (!pass.filefp) {
fperror:
              if (closeoldfile) {
                     php_stream_close(oldfile);
              }
              if (error) {
                     spprintf(error, 4096, "phar zip flush of \"%s\" failed: unable to open temporary file", phar->fname);
              }
              return EOF;
       }

       pass.centralfp = php_stream_fopen_tmpfile();

       if (!pass.centralfp) {
              goto fperror;
       }

       pass.free_fp = pass.free_ufp = 1;
       memset(&eocd, 0, sizeof(eocd));

       strncpy(eocd.signature, "PK\5\6", 4);
       if (!phar->is_data && !phar->sig_flags) {
              phar->sig_flags = PHAR_SIG_SHA1;
       }
       if (phar->sig_flags) {
              PHAR_SET_16(eocd.counthere, zend_hash_num_elements(&phar->manifest) + 1);
              PHAR_SET_16(eocd.count, zend_hash_num_elements(&phar->manifest) + 1);
       } else {
              PHAR_SET_16(eocd.counthere, zend_hash_num_elements(&phar->manifest));
              PHAR_SET_16(eocd.count, zend_hash_num_elements(&phar->manifest));
       }
       zend_hash_apply_with_argument(&phar->manifest, phar_zip_changed_apply, (void *) &pass TSRMLS_CC);

       if (phar->metadata) {
              /* set phar metadata */
              PHP_VAR_SERIALIZE_INIT(metadata_hash);
              php_var_serialize(&main_metadata_str, &phar->metadata, &metadata_hash TSRMLS_CC);
              PHP_VAR_SERIALIZE_DESTROY(metadata_hash);
       }
       if (temperr) {
              if (error) {
                     spprintf(error, 4096, "phar zip flush of \"%s\" failed: %s", phar->fname, temperr);
              }
              efree(temperr);
temperror:
              php_stream_close(pass.centralfp);
nocentralerror:
              if (phar->metadata) {
                     smart_str_free(&main_metadata_str);
              }
              php_stream_close(pass.filefp);
              if (closeoldfile) {
                     php_stream_close(oldfile);
              }
              return EOF;
       }

       if (FAILURE == phar_zip_applysignature(phar, &pass, &main_metadata_str TSRMLS_CC)) {
              goto temperror;
       }

       /* save zip */
       cdir_size = php_stream_tell(pass.centralfp);
       cdir_offset = php_stream_tell(pass.filefp);
       PHAR_SET_32(eocd.cdir_size, cdir_size);
       PHAR_SET_32(eocd.cdir_offset, cdir_offset);
       php_stream_seek(pass.centralfp, 0, SEEK_SET);

       {
              size_t clen;
              int ret = phar_stream_copy_to_stream(pass.centralfp, pass.filefp, PHP_STREAM_COPY_ALL, &clen);
              if (SUCCESS != ret || clen != cdir_size) {
                     if (error) {
                            spprintf(error, 4096, "phar zip flush of \"%s\" failed: unable to write central-directory", phar->fname);
                     }
                     goto temperror;
              }
       }

       php_stream_close(pass.centralfp);

       if (phar->metadata) {
              /* set phar metadata */
              PHAR_SET_16(eocd.comment_len, main_metadata_str.len);

              if (sizeof(eocd) != php_stream_write(pass.filefp, (char *)&eocd, sizeof(eocd))) {
                     if (error) {
                            spprintf(error, 4096, "phar zip flush of \"%s\" failed: unable to write end of central-directory", phar->fname);
                     }
                     goto nocentralerror;
              }

              if (main_metadata_str.len != php_stream_write(pass.filefp, main_metadata_str.c, main_metadata_str.len)) {
                     if (error) {
                            spprintf(error, 4096, "phar zip flush of \"%s\" failed: unable to write metadata to zip comment", phar->fname);
                     }
                     goto nocentralerror;
              }

              smart_str_free(&main_metadata_str);

       } else {
              if (sizeof(eocd) != php_stream_write(pass.filefp, (char *)&eocd, sizeof(eocd))) {
                     if (error) {
                            spprintf(error, 4096, "phar zip flush of \"%s\" failed: unable to write end of central-directory", phar->fname);
                     }
                     goto nocentralerror;
              }
       }

       if (phar->fp && pass.free_fp) {
              php_stream_close(phar->fp);
       }

       if (phar->ufp) {
              if (pass.free_ufp) {
                     php_stream_close(phar->ufp);
              }
              phar->ufp = NULL;
       }

       /* re-open */
       phar->is_brandnew = 0;

       if (phar->donotflush) {
              /* deferred flush */
              phar->fp = pass.filefp;
       } else {
              phar->fp = php_stream_open_wrapper(phar->fname, "w+b", IGNORE_URL|STREAM_MUST_SEEK|REPORT_ERRORS, NULL);
              if (!phar->fp) {
                     if (closeoldfile) {
                            php_stream_close(oldfile);
                     }
                     phar->fp = pass.filefp;
                     if (error) {
                            spprintf(error, 4096, "unable to open new phar \"%s\" for writing", phar->fname);
                     }
                     return EOF;
              }
              php_stream_rewind(pass.filefp);
              phar_stream_copy_to_stream(pass.filefp, phar->fp, PHP_STREAM_COPY_ALL, NULL);
              /* we could also reopen the file in "rb" mode but there is no need for that */
              php_stream_close(pass.filefp);
       }

       if (closeoldfile) {
              php_stream_close(oldfile);
       }
       return EOF;
}

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static int phar_zip_process_extra ( php_stream *  fp,
phar_entry_info entry,
php_uint16 len  TSRMLS_DC 
) [static]

Definition at line 42 of file zip.c.

{
       union {
              phar_zip_extra_field_header header;
              phar_zip_unix3 unix3;
       } h;
       int read;

       do {
              if (sizeof(h.header) != php_stream_read(fp, (char *) &h.header, sizeof(h.header))) {
                     return FAILURE;
              }

              if (h.header.tag[0] != 'n' || h.header.tag[1] != 'u') {
                     /* skip to next header */
                     php_stream_seek(fp, PHAR_GET_16(h.header.size), SEEK_CUR);
                     len -= PHAR_GET_16(h.header.size) + 4;
                     continue;
              }

              /* unix3 header found */
              read = php_stream_read(fp, (char *) &(h.unix3.crc32), sizeof(h.unix3) - sizeof(h.header));
              len -= read + 4;

              if (sizeof(h.unix3) - sizeof(h.header) != read) {
                     return FAILURE;
              }

              if (PHAR_GET_16(h.unix3.size) > sizeof(h.unix3) - 4) {
                     /* skip symlink filename - we may add this support in later */
                     php_stream_seek(fp, PHAR_GET_16(h.unix3.size) - sizeof(h.unix3.size), SEEK_CUR);
              }

              /* set permissions */
              entry->flags &= PHAR_ENT_COMPRESSION_MASK;

              if (entry->is_dir) {
                     entry->flags |= PHAR_GET_16(h.unix3.perms) & PHAR_ENT_PERM_MASK;
              } else {
                     entry->flags |= PHAR_GET_16(h.unix3.perms) & PHAR_ENT_PERM_MASK;
              }

       } while (len);

       return SUCCESS;
}

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static void phar_zip_u2d_time ( time_t  time,
char *  dtime,
char *  ddate 
) [static]

Definition at line 144 of file zip.c.

{
       php_uint16 ctime, cdate;
       struct tm *tm, tmbuf;

       tm = php_localtime_r(&time, &tmbuf);
       cdate = ((tm->tm_year+1900-1980)<<9) + ((tm->tm_mon+1)<<5) + tm->tm_mday;
       ctime = ((tm->tm_hour)<<11) + ((tm->tm_min)<<5) + ((tm->tm_sec)>>1);
       PHAR_SET_16(dtime, ctime);
       PHAR_SET_16(ddate, cdate);
}

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