diff options
Diffstat (limited to 'busybox/libbb/last_char_is.c')
-rw-r--r-- | busybox/libbb/last_char_is.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/busybox/libbb/last_char_is.c b/busybox/libbb/last_char_is.c new file mode 100644 index 000000000..9bd70996c --- /dev/null +++ b/busybox/libbb/last_char_is.c | |||
@@ -0,0 +1,38 @@ | |||
1 | /* | ||
2 | * busybox library eXtended function | ||
3 | * | ||
4 | * Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
19 | * | ||
20 | */ | ||
21 | |||
22 | #include <string.h> | ||
23 | #include "libbb.h" | ||
24 | |||
25 | /* Find out if the last character of a string matches the one given Don't | ||
26 | * underrun the buffer if the string length is 0. Also avoids a possible | ||
27 | * space-hogging inline of strlen() per usage. | ||
28 | */ | ||
29 | char * last_char_is(const char *s, int c) | ||
30 | { | ||
31 | char *sret = (char *)s; | ||
32 | if (sret) { | ||
33 | sret = strrchr(sret, c); | ||
34 | if(sret != NULL && *(sret+1) != 0) | ||
35 | sret = NULL; | ||
36 | } | ||
37 | return sret; | ||
38 | } | ||