1
0
mirror of https://github.com/moparisthebest/curl synced 2024-08-13 17:03:50 -04:00
curl/ares/ares_expand_string.c
Daniel Stenberg c85bf83e88 - Fixed a few variable return types for some system calls. Made configure
check for ssize_t to make it possible to use that when receiving the send()
  error code. This is necessary to prevent compiler warnings on some systems.

- Made configure create config.h, and all source files now include setup.h that
  might include the proper config.h (or a handicrafted alternative).

- Switched to 'ares_socket_t' type for sockets in ares, since Windows don't
  use 'int' for that.

- automake-ified and libool-ified c-ares. Now it builds libcares as a shared
  lib on most platforms if wanted. (This bloated the size of the release
  archive with another 200K!)

- Makefile.am now uses Makefile.inc for the c sources, h headers and man
  pages, to make it easier for other makefiles to use the exact same set of
  files.

- Adjusted 'maketgz' to use the new automake magic when building distribution
  archives.
2004-07-22 22:18:45 +00:00

67 lines
1.7 KiB
C

/* 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.
*/
#include "setup.h"
#include <sys/types.h>
#ifdef WIN32
#include "nameser.h"
#else
#include <netinet/in.h>
#include <arpa/nameser.h>
#endif
#include <string.h>
#include <stdlib.h>
#include "ares.h"
#include "ares_private.h" /* for the memdebug */
/* Simply decodes a length-encoded character string. The first byte of the
* input is the length of the string to be returned and the bytes thereafter
* are the characters of the string. The returned result will be NULL
* terminated.
*/
int ares_expand_string(const unsigned char *encoded,
const unsigned char *abuf,
int alen,
unsigned char **s,
long *enclen)
{
unsigned char *q;
long len;
if (encoded == abuf+alen)
return ARES_EBADSTR;
len = *encoded;
if (encoded+len+1 > abuf+alen)
return ARES_EBADSTR;
encoded++;
*s = malloc(len+1);
if (*s == NULL)
return ARES_ENOMEM;
q = *s;
strncpy((char *)q, (char *)encoded, len);
q[len] = '\0';
*s = q;
*enclen = len+1;
return ARES_SUCCESS;
}