source: branches/2.2.2/mindi-busybox/libbb/fgets_str.c @ 1247

Last change on this file since 1247 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 1.7 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Utility routines.
4 *
5 * Copyright (C) many different people.
6 * If you wrote this, please acknowledge your work.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23
24#include <stdio.h>
25#include <stdlib.h>
26#include <string.h>
27
28#include "libbb.h"
29
30/* Read up to (and including) TERMINATING_STRING from FILE and return it.
31 * Return NULL on EOF.  */
32
33char *fgets_str(FILE *file, const char *terminating_string)
34{
35    char *linebuf = NULL;
36    const int term_length = strlen(terminating_string);
37    int end_string_offset;
38    int linebufsz = 0;
39    int idx = 0;
40    int ch;
41
42    while (1) {
43        ch = fgetc(file);
44        if (ch == EOF) {
45            free(linebuf);
46            return NULL;
47        }
48
49        /* grow the line buffer as necessary */
50        while (idx > linebufsz - 2) {
51            linebuf = xrealloc(linebuf, linebufsz += 1000);
52        }
53
54        linebuf[idx] = ch;
55        idx++;
56
57        /* Check for terminating string */
58        end_string_offset = idx - term_length;
59        if ((end_string_offset > 0) && (memcmp(&linebuf[end_string_offset], terminating_string, term_length) == 0)) {
60            idx -= term_length;
61            break;
62        }
63    }
64    linebuf[idx] = '\0';
65    return(linebuf);
66}
67
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