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php5  5.3.10
Classes | Functions
md5.h File Reference
#include "ext/standard/basic_functions.h"
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Classes

struct  PHP_MD5_CTX

Functions

PHPAPI void make_digest (char *md5str, const unsigned char *digest)
PHPAPI void make_digest_ex (char *md5str, const unsigned char *digest, int len)
 PHP_NAMED_FUNCTION (php_if_md5)
 PHP_NAMED_FUNCTION (php_if_md5_file)
PHPAPI void PHP_MD5Init (PHP_MD5_CTX *ctx)
PHPAPI void PHP_MD5Update (PHP_MD5_CTX *ctx, const void *data, size_t size)
PHPAPI void PHP_MD5Final (unsigned char *result, PHP_MD5_CTX *ctx)

Class Documentation

struct PHP_MD5_CTX

Definition at line 44 of file md5.h.

Class Members
php_uint32 a
php_uint32 b
php_uint32 block
unsigned char buffer
php_uint32 c
php_uint32 d
php_uint32 hi
php_uint32 lo

Function Documentation

PHPAPI void make_digest ( char *  md5str,
const unsigned char *  digest 
)

Definition at line 26 of file md5.c.

{
       make_digest_ex(md5str, digest, 16);
}

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PHPAPI void make_digest_ex ( char *  md5str,
const unsigned char *  digest,
int  len 
)

Definition at line 32 of file md5.c.

{
       static const char hexits[17] = "0123456789abcdef";
       int i;

       for (i = 0; i < len; i++) {
              md5str[i * 2]       = hexits[digest[i] >> 4];
              md5str[(i * 2) + 1] = hexits[digest[i] &  0x0F];
       }
       md5str[len * 2] = '\0';
}

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PHPAPI void PHP_MD5Final ( unsigned char *  result,
PHP_MD5_CTX ctx 
)

Definition at line 340 of file md5.c.

{
       php_uint32 used, free;

       used = ctx->lo & 0x3f;

       ctx->buffer[used++] = 0x80;

       free = 64 - used;

       if (free < 8) {
              memset(&ctx->buffer[used], 0, free);
              body(ctx, ctx->buffer, 64);
              used = 0;
              free = 64;
       }

       memset(&ctx->buffer[used], 0, free - 8);

       ctx->lo <<= 3;
       ctx->buffer[56] = ctx->lo;
       ctx->buffer[57] = ctx->lo >> 8;
       ctx->buffer[58] = ctx->lo >> 16;
       ctx->buffer[59] = ctx->lo >> 24;
       ctx->buffer[60] = ctx->hi;
       ctx->buffer[61] = ctx->hi >> 8;
       ctx->buffer[62] = ctx->hi >> 16;
       ctx->buffer[63] = ctx->hi >> 24;

       body(ctx, ctx->buffer, 64);

       result[0] = ctx->a;
       result[1] = ctx->a >> 8;
       result[2] = ctx->a >> 16;
       result[3] = ctx->a >> 24;
       result[4] = ctx->b;
       result[5] = ctx->b >> 8;
       result[6] = ctx->b >> 16;
       result[7] = ctx->b >> 24;
       result[8] = ctx->c;
       result[9] = ctx->c >> 8;
       result[10] = ctx->c >> 16;
       result[11] = ctx->c >> 24;
       result[12] = ctx->d;
       result[13] = ctx->d >> 8;
       result[14] = ctx->d >> 16;
       result[15] = ctx->d >> 24;

       memset(ctx, 0, sizeof(*ctx));
}

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PHPAPI void PHP_MD5Init ( PHP_MD5_CTX ctx)

Definition at line 294 of file md5.c.

{
       ctx->a = 0x67452301;
       ctx->b = 0xefcdab89;
       ctx->c = 0x98badcfe;
       ctx->d = 0x10325476;

       ctx->lo = 0;
       ctx->hi = 0;
}

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PHPAPI void PHP_MD5Update ( PHP_MD5_CTX ctx,
const void *  data,
size_t  size 
)

Definition at line 305 of file md5.c.

{
       php_uint32 saved_lo;
       php_uint32 used, free;

       saved_lo = ctx->lo;
       if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo) {
              ctx->hi++;
       }
       ctx->hi += size >> 29;

       used = saved_lo & 0x3f;

       if (used) {
              free = 64 - used;

              if (size < free) {
                     memcpy(&ctx->buffer[used], data, size);
                     return;
              }

              memcpy(&ctx->buffer[used], data, free);
              data = (unsigned char *)data + free;
              size -= free;
              body(ctx, ctx->buffer, 64);
       }

       if (size >= 64) {
              data = body(ctx, data, size & ~(size_t)0x3f);
              size &= 0x3f;
       }

       memcpy(ctx->buffer, data, size);
}

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PHP_NAMED_FUNCTION ( php_if_md5  )

Definition at line 47 of file md5.c.

{
       char *arg;
       int arg_len;
       zend_bool raw_output = 0;
       char md5str[33];
       PHP_MD5_CTX context;
       unsigned char digest[16];
       
       if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
              return;
       }
       
       md5str[0] = '\0';
       PHP_MD5Init(&context);
       PHP_MD5Update(&context, arg, arg_len);
       PHP_MD5Final(digest, &context);
       if (raw_output) {
              RETURN_STRINGL(digest, 16, 1);
       } else {
              make_digest_ex(md5str, digest, 16);
              RETVAL_STRING(md5str, 1);
       }

}

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PHP_NAMED_FUNCTION ( php_if_md5_file  )

Definition at line 76 of file md5.c.

{
       char          *arg;
       int           arg_len;
       zend_bool raw_output = 0;
       char          md5str[33];
       unsigned char buf[1024];
       unsigned char digest[16];
       PHP_MD5_CTX   context;
       int           n;
       php_stream    *stream;

       if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
              return;
       }
       
       stream = php_stream_open_wrapper(arg, "rb", REPORT_ERRORS | ENFORCE_SAFE_MODE, NULL);
       if (!stream) {
              RETURN_FALSE;
       }

       PHP_MD5Init(&context);

       while ((n = php_stream_read(stream, buf, sizeof(buf))) > 0) {
              PHP_MD5Update(&context, buf, n);
       }

       PHP_MD5Final(digest, &context);

       php_stream_close(stream);

       if (n<0) {
              RETURN_FALSE;
       }

       if (raw_output) {
              RETURN_STRINGL(digest, 16, 1);
       } else {
              make_digest_ex(md5str, digest, 16);
              RETVAL_STRING(md5str, 1);
       }
}

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