]> asedeno.scripts.mit.edu Git - 1ts-debian.git/blobdiff - libares/ares__get_hostent.c
This commit was manufactured by cvs2svn to create branch 'upstream'.
[1ts-debian.git] / libares / ares__get_hostent.c
diff --git a/libares/ares__get_hostent.c b/libares/ares__get_hostent.c
deleted file mode 100644 (file)
index 3c645d8..0000000
+++ /dev/null
@@ -1,164 +0,0 @@
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is"
- * without express or implied warranty.
- */
-
-static const char rcsid[] = "$Id: ares__get_hostent.c,v 1.3 2000/02/17 18:39:58 ghudson Exp $";
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <netdb.h>
-#include "ares.h"
-#include "ares_private.h"
-
-int ares__get_hostent(FILE *fp, struct hostent **host)
-{
-  char *line = NULL, *p, *q, *canonical, **alias;
-  int status, linesize, end_at_hostname, naliases;
-  struct in_addr addr;
-  struct hostent *hostent = NULL;
-
-  while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
-    {
-      /* Skip comment lines; terminate line at comment character. */
-      if (*line == '#' || !*line)
-       continue;
-      p = strchr(line, '#');
-      if (p)
-       *p = 0;
-
-      /* Get the address part. */
-      p = line;
-      while (*p && !isspace((unsigned char)*p))
-       p++;
-      if (!*p)
-       continue;
-      *p = 0;
-      addr.s_addr = inet_addr(line);
-      if (addr.s_addr == INADDR_NONE)
-       continue;
-
-      /* Get the canonical hostname. */
-      p++;
-      while (isspace((unsigned char)*p))
-       p++;
-      if (!*p)
-       continue;
-      q = p;
-      while (*q && !isspace((unsigned char)*q))
-       q++;
-      end_at_hostname = (*q == 0);
-      *q = 0;
-      canonical = p;
-
-      naliases = 0;
-      if (!end_at_hostname)
-       {
-         /* Count the aliases. */
-         p = q + 1;
-         while (isspace((unsigned char)*p))
-           p++;
-         while (*p)
-           {
-             while (*p && !isspace((unsigned char)*p))
-               p++;
-             while (isspace((unsigned char)*p))
-               p++;
-             naliases++;
-           }
-       }
-
-      /* Allocate memory for the host structure. */
-      hostent = malloc(sizeof(struct hostent));
-      if (!hostent)
-       break;
-      hostent->h_aliases = NULL;
-      hostent->h_addr_list = NULL;
-      hostent->h_name = strdup(canonical);
-      if (!hostent->h_name)
-       break;
-      hostent->h_addr_list = malloc(2 * sizeof(char *));
-      if (!hostent->h_addr_list)
-       break;
-      hostent->h_addr_list[0] = malloc(sizeof(struct in_addr));
-      if (!hostent->h_addr_list[0])
-       break;
-      hostent->h_aliases = malloc((naliases + 1) * sizeof(char *));
-      if (!hostent->h_aliases)
-       break;
-
-      /* Copy in aliases. */
-      naliases = 0;
-      if (!end_at_hostname)
-       {
-         p = canonical + strlen(canonical) + 1;
-         while (isspace((unsigned char)*p))
-           p++;
-         while (*p)
-           {
-             q = p;
-             while (*q && !isspace((unsigned char)*q))
-               q++;
-             hostent->h_aliases[naliases] = malloc(q - p + 1);
-             if (hostent->h_aliases[naliases] == NULL)
-               break;
-             memcpy(hostent->h_aliases[naliases], p, q - p);
-             hostent->h_aliases[naliases][q - p] = 0;
-             p = q;
-             while (isspace((unsigned char)*p))
-               p++;
-             naliases++;
-           }
-         if (*p)
-           break;
-       }
-      hostent->h_aliases[naliases] = NULL;
-
-      hostent->h_addrtype = AF_INET;
-      hostent->h_length = sizeof(struct in_addr);
-      memcpy(hostent->h_addr_list[0], &addr, sizeof(struct in_addr));
-      hostent->h_addr_list[1] = NULL;
-      *host = hostent;
-      free(line);
-      return ARES_SUCCESS;
-    }
-  free(line);
-
-  if (status == ARES_SUCCESS)
-    {
-      /* Memory allocation failure; clean up. */
-      if (hostent)
-       {
-         free((char *) hostent->h_name);
-         if (hostent->h_aliases)
-           {
-             for (alias = hostent->h_aliases; *alias; alias++)
-               free(*alias);
-           }
-         free(hostent->h_aliases);
-         if (hostent->h_addr_list)
-           free(hostent->h_addr_list[0]);
-         free(hostent->h_addr_list);
-       }
-      free(hostent);
-      return ARES_ENOMEM;
-    }
-
-  return status;
-}