Back to index

glibc  2.9
Defines | Functions | Variables
nis-proto.c File Reference
#include <nss.h>
#include <netdb.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <bits/libc-lock.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include "nss-nis.h"
#include <nss/nss_files/files-parse.c>

Go to the source code of this file.

Defines

#define ENTNAME   protoent
#define EXTERN_PARSER

Functions

 __libc_lock_define_initialized (static, lock)
static int saveit (int instatus, char *inkey, int inkeylen, char *inval, int invallen, char *indata)
static void internal_nis_endprotoent (void)
static enum nss_status internal_nis_setprotoent (void)
enum nss_status _nss_nis_setprotoent (int stayopen)
enum nss_status _nss_nis_endprotoent (void)
static enum nss_status internal_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen, int *errnop)
enum nss_status _nss_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen, int *errnop)
enum nss_status _nss_nis_getprotobyname_r (const char *name, struct protoent *proto, char *buffer, size_t buflen, int *errnop)
enum nss_status _nss_nis_getprotobynumber_r (int number, struct protoent *proto, char *buffer, size_t buflen, int *errnop)

Variables

static struct response * start
static struct response * next

Define Documentation

#define ENTNAME   protoent

Definition at line 32 of file nis-proto.c.

#define EXTERN_PARSER

Definition at line 33 of file nis-proto.c.


Function Documentation

__libc_lock_define_initialized ( static  ,
lock   
)

Definition at line 36 of file nis-proto.c.

{
  struct response *next;
  char val[0];
};

Definition at line 118 of file nis-proto.c.

Here is the call graph for this function:

enum nss_status _nss_nis_getprotobyname_r ( const char *  name,
struct protoent proto,
char *  buffer,
size_t  buflen,
int errnop 
)

Definition at line 179 of file nis-proto.c.

{
  if (name == NULL)
    {
      *errnop = EINVAL;
      return NSS_STATUS_UNAVAIL;
    }

  char *domain;
  if (__builtin_expect (yp_get_default_domain (&domain), 0))
    return NSS_STATUS_UNAVAIL;

  char *result;
  int len;
  int yperr = yp_match (domain, "protocols.byname", name, strlen (name),
                     &result, &len);

  if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
    {
      enum nss_status retval = yperr2nss (yperr);

      if (retval == NSS_STATUS_TRYAGAIN)
       *errnop = errno;
      return retval;
    }

  if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
    {
      free (result);
      *errnop = ERANGE;
      return NSS_STATUS_TRYAGAIN;
    }

  char *p = strncpy (buffer, result, len);
  buffer[len] = '\0';
  while (isspace (*p))
    ++p;
  free (result);

  int parse_res = _nss_files_parse_protoent (p, proto, (void *) buffer, buflen,
                                        errnop);
  if (__builtin_expect (parse_res < 1, 0))
    {
      if (parse_res == -1)
       return NSS_STATUS_TRYAGAIN;
      else
       return NSS_STATUS_NOTFOUND;
    }
  return NSS_STATUS_SUCCESS;
}

Here is the call graph for this function:

enum nss_status _nss_nis_getprotobynumber_r ( int  number,
struct protoent proto,
char *  buffer,
size_t  buflen,
int errnop 
)

Definition at line 232 of file nis-proto.c.

{
  char *domain;
  if (__builtin_expect (yp_get_default_domain (&domain), 0))
    return NSS_STATUS_UNAVAIL;

  char buf[32];
  int nlen = snprintf (buf, sizeof (buf), "%d", number);

  char *result;
  int len;
  int yperr = yp_match (domain, "protocols.bynumber", buf, nlen, &result,
                     &len);

  if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
    {
      enum nss_status retval = yperr2nss (yperr);

      if (retval == NSS_STATUS_TRYAGAIN)
       *errnop = errno;
      return retval;
    }

  if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
    {
      free (result);
      *errnop = ERANGE;
      return NSS_STATUS_TRYAGAIN;
    }

  char *p = strncpy (buffer, result, len);
  buffer[len] = '\0';
  while (isspace (*p))
    ++p;
  free (result);

  int parse_res = _nss_files_parse_protoent (p, proto, (void *) buffer, buflen,
                                        errnop);
  if (__builtin_expect (parse_res < 1, 0))
    {
      if (parse_res == -1)
       return NSS_STATUS_TRYAGAIN;
      else
       return NSS_STATUS_NOTFOUND;
    }
  return NSS_STATUS_SUCCESS;
}

Here is the call graph for this function:

enum nss_status _nss_nis_getprotoent_r ( struct protoent proto,
char *  buffer,
size_t  buflen,
int errnop 
)

Definition at line 164 of file nis-proto.c.

{
  enum nss_status status;

  __libc_lock_lock (lock);

  status = internal_nis_getprotoent_r (proto, buffer, buflen, errnop);

  __libc_lock_unlock (lock);

  return status;
}

Here is the call graph for this function:

enum nss_status _nss_nis_setprotoent ( int  stayopen)

Definition at line 104 of file nis-proto.c.

Here is the call graph for this function:

static void internal_nis_endprotoent ( void  ) [static]

Definition at line 74 of file nis-proto.c.

{
  while (start != NULL)
    {
      next = start;
      start = start->next;
      free (next);
    }
}

Here is the caller graph for this function:

static enum nss_status internal_nis_getprotoent_r ( struct protoent proto,
char *  buffer,
size_t  buflen,
int errnop 
) [static]

Definition at line 131 of file nis-proto.c.

{
  struct parser_data *data = (void *) buffer;
  int parse_res;

  if (start == NULL)
    internal_nis_setprotoent ();

  /* Get the next entry until we found a correct one. */
  do
    {
      char *p;

      if (next == NULL)
       return NSS_STATUS_NOTFOUND;

      p = strncpy (buffer, next->val, buflen);

      while (isspace (*p))
        ++p;

      parse_res = _nss_files_parse_protoent (p, proto, data, buflen, errnop);
      if (parse_res == -1)
        return NSS_STATUS_TRYAGAIN;
      next = next->next;
    }
  while (!parse_res);

  return NSS_STATUS_SUCCESS;
}

Here is the call graph for this function:

Here is the caller graph for this function:

static enum nss_status internal_nis_setprotoent ( void  ) [static]

Definition at line 85 of file nis-proto.c.

{
  char *domainname;
  struct ypall_callback ypcb;
  enum nss_status status;

  yp_get_default_domain (&domainname);

  internal_nis_endprotoent ();

  ypcb.foreach = saveit;
  ypcb.data = NULL;
  status = yperr2nss (yp_all (domainname, "protocols.bynumber", &ypcb));
  next = start;

  return status;
}

Here is the call graph for this function:

Here is the caller graph for this function:

static int saveit ( int  instatus,
char *  inkey,
int  inkeylen,
char *  inval,
int  invallen,
char *  indata 
) [static]

Definition at line 48 of file nis-proto.c.

{
  if (instatus != YP_TRUE)
    return 1;

  if (inkey && inkeylen > 0 && inval && invallen > 0)
    {
      struct response *newp = malloc (sizeof (struct response) + invallen + 1);
      if (newp == NULL)
       return 1; /* We have no error code for out of memory */

      if (start == NULL)
       start = newp;
      else
       next->next = newp;
      next = newp;

      newp->next = NULL;
      *((char *) mempcpy (newp->val, inval, invallen)) = '\0';
    }

  return 0;
}

Here is the caller graph for this function:


Variable Documentation

struct response* next [static]

Definition at line 45 of file nis-proto.c.

struct response* start [static]

Definition at line 44 of file nis-proto.c.