diff options
author | Eric Andersen <andersen@codepoet.org> | 2001-04-26 19:56:47 +0400 |
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committer | Eric Andersen <andersen@codepoet.org> | 2001-04-26 19:56:47 +0400 |
commit | c1bdffe99b6fa6fdb0f43e0dec85d8bbfcab1572 (patch) | |
tree | 3cf5b7c0c69bd8c802c4b080b6a5e94a4a401831 /libbb/last_char_is.c | |
parent | 3c3277f0bda79b66b35e5e965e5340624d29a459 (diff) |
Another nice cleanup from Larry. This adds a new last_char_is() function and
uses it to avoid possible buffer underruns whn strlen is zero, and avoid the
possible space-hogging inline of strlen() in several cases.
-Erik
Diffstat (limited to 'libbb/last_char_is.c')
-rw-r--r-- | libbb/last_char_is.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libbb/last_char_is.c b/libbb/last_char_is.c new file mode 100644 index 000000000..b4bb7ec32 --- /dev/null +++ b/libbb/last_char_is.c @@ -0,0 +1,33 @@ +/* + * busybox library eXtended function + * + * Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "libbb.h" + +/* Find out if the last character of a string matches the one given Don't + * underrun the buffer if the string length is 0. Also avoids a possible + * space-hogging inline of strlen() per usage. + */ +int last_char_is(const char *s, const int c) +{ + int l = strlen(s); + if (l==0) return 0; + return (s[l-1] == c); +} |