diff options
author | Eric Andersen <andersen@codepoet.org> | 2001-03-16 22:47:14 +0000 |
---|---|---|
committer | Eric Andersen <andersen@codepoet.org> | 2001-03-16 22:47:14 +0000 |
commit | aad1a88c76f208d188fd061e3723bd637437e8d5 (patch) | |
tree | 75ac2b994f7f04af776e93eeedba82b873ff557e /libbb/get_line_from_file.c | |
parent | dfba13d199bb58d802df99c1ef20fdc0d628e86d (diff) | |
download | busybox-w32-aad1a88c76f208d188fd061e3723bd637437e8d5.tar.gz busybox-w32-aad1a88c76f208d188fd061e3723bd637437e8d5.tar.bz2 busybox-w32-aad1a88c76f208d188fd061e3723bd637437e8d5.zip |
Convert utility.c into libbb.a. It is now a whole pile of .c
files. Clean up the resulting damage and fix up the makefile.
-Erik
Diffstat (limited to 'libbb/get_line_from_file.c')
-rw-r--r-- | libbb/get_line_from_file.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/libbb/get_line_from_file.c b/libbb/get_line_from_file.c new file mode 100644 index 000000000..759481731 --- /dev/null +++ b/libbb/get_line_from_file.c | |||
@@ -0,0 +1,72 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Utility routines. | ||
4 | * | ||
5 | * Copyright (C) tons of folks. Tracking down who wrote what | ||
6 | * isn't something I'm going to worry about... If you wrote something | ||
7 | * here, please feel free to acknowledge your work. | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License as published by | ||
11 | * the Free Software Foundation; either version 2 of the License, or | ||
12 | * (at your option) any later version. | ||
13 | * | ||
14 | * This program is distributed in the hope that it will be useful, | ||
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
17 | * General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License | ||
20 | * along with this program; if not, write to the Free Software | ||
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 | * | ||
23 | * Based in part on code from sash, Copyright (c) 1999 by David I. Bell | ||
24 | * Permission has been granted to redistribute this code under the GPL. | ||
25 | * | ||
26 | */ | ||
27 | |||
28 | #include <stdio.h> | ||
29 | #include "libbb.h" | ||
30 | |||
31 | |||
32 | |||
33 | /* get_line_from_file() - This function reads an entire line from a text file | ||
34 | * up to a newline. It returns a malloc'ed char * which must be stored and | ||
35 | * free'ed by the caller. */ | ||
36 | extern char *get_line_from_file(FILE *file) | ||
37 | { | ||
38 | static const int GROWBY = 80; /* how large we will grow strings by */ | ||
39 | |||
40 | int ch; | ||
41 | int idx = 0; | ||
42 | char *linebuf = NULL; | ||
43 | int linebufsz = 0; | ||
44 | |||
45 | while (1) { | ||
46 | ch = fgetc(file); | ||
47 | if (ch == EOF) | ||
48 | break; | ||
49 | /* grow the line buffer as necessary */ | ||
50 | while (idx > linebufsz-2) | ||
51 | linebuf = xrealloc(linebuf, linebufsz += GROWBY); | ||
52 | linebuf[idx++] = (char)ch; | ||
53 | if ((char)ch == '\n') | ||
54 | break; | ||
55 | } | ||
56 | |||
57 | if (idx == 0) | ||
58 | return NULL; | ||
59 | |||
60 | linebuf[idx] = 0; | ||
61 | return linebuf; | ||
62 | } | ||
63 | |||
64 | |||
65 | /* END CODE */ | ||
66 | /* | ||
67 | Local Variables: | ||
68 | c-file-style: "linux" | ||
69 | c-basic-offset: 4 | ||
70 | tab-width: 4 | ||
71 | End: | ||
72 | */ | ||