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/*
* Copyright (c) 2009-2010, 2012-2015 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#ifndef HAVE_GETLINE
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif /* HAVE_STRINGS_H */
#include <limits.h>
#include "sudo_compat.h"
#ifdef HAVE_FGETLN
ssize_t
sudo_getline(char **bufp, size_t *bufsizep, FILE *fp)
{
char *buf, *cp;
size_t bufsize;
size_t len;
buf = fgetln(fp, &len);
if (buf) {
bufsize = *bufp ? *bufsizep : 0;
if (bufsize == 0 || bufsize - 1 < len) {
bufsize = len + 1;
cp = realloc(*bufp, bufsize);
if (cp == NULL)
return -1;
*bufp = cp;
*bufsizep = bufsize;
}
memcpy(*bufp, buf, len);
(*bufp)[len] = '\0';
}
return buf ? len : -1;
}
#else
ssize_t
sudo_getline(char **bufp, size_t *bufsizep, FILE *fp)
{
char *buf, *cp;
size_t bufsize;
ssize_t len = 0;
buf = *bufp;
bufsize = *bufsizep;
if (buf == NULL || bufsize == 0) {
bufsize = LINE_MAX;
cp = realloc(buf, bufsize);
if (cp == NULL)
return -1;
buf = cp;
}
for (;;) {
if (fgets(buf + len, bufsize - len, fp) == NULL) {
len = -1;
break;
}
len = strlen(buf);
if (!len || buf[len - 1] == '\n' || feof(fp))
break;
cp = reallocarray(buf, bufsize, 2);
if (cp == NULL)
return -1;
bufsize *= 2;
buf = cp;
}
*bufp = buf;
*bufsizep = bufsize;
return len;
}
#endif /* HAVE_FGETLN */
#endif /* HAVE_GETLINE */
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