48 lines
2.5 KiB
C
48 lines
2.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ This program is free software; you can redistribute it and/or modify │
|
|
│ it under the terms of the GNU General Public License as published by │
|
|
│ the Free Software Foundation; version 2 of the License. │
|
|
│ │
|
|
│ This program is distributed in the hope that it will be useful, but │
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
|
│ General Public License for more details. │
|
|
│ │
|
|
│ You should have received a copy of the GNU General Public License │
|
|
│ along with this program; if not, write to the Free Software │
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
|
│ 02110-1301 USA │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/assert.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/stdio/stdio.h"
|
|
|
|
/**
|
|
* Reads content from stream.
|
|
*
|
|
* This function is similar to getline() except it'll truncate lines
|
|
* exceeding size. The line ending marker is included and may be removed
|
|
* using chomp().
|
|
*/
|
|
char *fgets(char *s, int size, FILE *f) {
|
|
int c;
|
|
char *p;
|
|
p = s;
|
|
if (size > 0) {
|
|
while (--size > 0) {
|
|
if ((c = getc(f)) == -1) {
|
|
if (ferror(f) == EINTR) continue;
|
|
break;
|
|
}
|
|
*p++ = c & 0xff;
|
|
if (c == '\n') break;
|
|
}
|
|
*p = '\0';
|
|
}
|
|
return p > s ? s : NULL;
|
|
}
|