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openwrt-xburst/tools/include/getline.h

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/*-
* Copyright (c) 2006 SPARTA, Inc.
* All rights reserved.
*
* This software was developed by SPARTA ISSO under SPAWAR contract
* N66001-04-C-6019 ("SEFOS").
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __linux__
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
* Emulate glibc getline() via BSD fgetln().
* Note that outsize is not changed unless memory is allocated.
*/
static inline ssize_t
getline(char **outbuf, size_t *outsize, FILE *fp)
{
size_t len;
#ifndef __CYGWIN__
char *buf;
buf = fgetln(fp, &len);
#else
char buf[512];
fgets(buf, sizeof(buf), fp);
len = strlen(buf);
#endif
if (buf == NULL)
return (-1);
/* Assumes realloc() accepts NULL for ptr (C99) */
if (*outbuf == NULL || *outsize < len + 1) {
void *tmp = realloc(*outbuf, len + 1);
if (tmp == NULL)
return (-1);
*outbuf = tmp;
*outsize = len + 1;
}
memcpy(*outbuf, buf, len);
(*outbuf)[len] = '\0';
return (len);
}
#endif