James Bursa's fix to prevent free(NULL) to occur (ff0429a8) · Commits · CYBER - Cyber Security / TS 103 523 MSP / TLMSP / TLMSP curl

ares/ares__get_hostent.c

+9 −5

Original line number	Diff line number	Diff line
		@@ -140,6 +140,7 @@ 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;
		if(line)
		free(line);
		return ARES_SUCCESS;
		}
		@@ -150,18 +151,21 @@ int ares__get_hostent(FILE fp, struct hostent *host)
		/* Memory allocation failure; clean up. */
		if (hostent)
		{
		if(hostent->h_name)
		free((char *) hostent->h_name);
		if (hostent->h_aliases)
		{
		for (alias = hostent->h_aliases; *alias; alias++)
		free(*alias);
		}
		if(hostent->h_aliases)
		free(hostent->h_aliases);
		if (hostent->h_addr_list)
		free(hostent->h_addr_list[0]);
		if(hostent->h_addr_list)
		free(hostent->h_addr_list);
		}
		free(hostent);
		}
		return ARES_ENOMEM;
		}