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James Bursa's fix to prevent free(NULL) to occur

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This commit is contained in:
Daniel Stenberg 2004-05-27 06:42:48 +00:00
parent 46cdc83b81
commit ff0429a802
1 changed files with 9 additions and 5 deletions
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14
ares/ares__get_hostent.c
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@ -140,7 +140,8 @@ int ares__get_hostent(FILE *fp, struct hostent **host)
memcpy(hostent->h_addr_list[0], &addr, sizeof(struct in_addr));
hostent->h_addr_list[1] = NULL;
*host = hostent;
free(line);
if(line)
free(line);
return ARES_SUCCESS;
}
free(line);
@ -150,18 +151,21 @@ int ares__get_hostent(FILE *fp, struct hostent **host)
/* Memory allocation failure; clean up. */
if (hostent)
{
free((char *) hostent->h_name);
if(hostent->h_name)
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_aliases)
free(hostent->h_aliases);
if (hostent->h_addr_list)
free(hostent->h_addr_list[0]);
free(hostent->h_addr_list);
if(hostent->h_addr_list)
free(hostent->h_addr_list);
free(hostent);
}
free(hostent);
return ARES_ENOMEM;
}