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[android-x86/external-toybox.git] / toys / posix / basename.c
1 /* basename.c - Return non-directory portion of a pathname
2  *
3  * Copyright 2012 Tryn Mirell <tryn@mirell.org>
4  *
5  * See http://opengroup.org/onlinepubs/9699919799/utilities/basename.html
6
7
8 USE_BASENAME(NEWTOY(basename, "<1>2", TOYFLAG_USR|TOYFLAG_BIN))
9
10 config BASENAME
11   bool "basename"
12   default y
13   help
14     usage: basename string [suffix]
15
16     Return non-directory portion of a pathname removing suffix
17 */
18
19 #include "toys.h"
20
21 void basename_main(void)
22 {
23   char *base = basename(*toys.optargs), *suffix = toys.optargs[1];
24
25   // chop off the suffix if provided
26   if (suffix && *suffix) {
27     long bl = strlen(base), sl = strlen(suffix);
28     char *s = base + bl - sl;
29
30     if (bl > sl && !strcmp(s, suffix)) *s = 0;
31   }
32
33   puts(base);
34 }