diff options
author | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
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committer | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
commit | 73b16af8feec390afbabd9356d6e5e83c0390838 (patch) | |
tree | 3730020ba2f9caeb9d7815a975af51830b51ce11 /coreutils/basename.c |
busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2busybox-1.13.3
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'coreutils/basename.c')
-rw-r--r-- | coreutils/basename.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/coreutils/basename.c b/coreutils/basename.c new file mode 100644 index 0000000..8a5597e --- /dev/null +++ b/coreutils/basename.c @@ -0,0 +1,53 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini basename implementation for busybox + * + * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + * + */ + +/* BB_AUDIT SUSv3 compliant */ +/* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */ + + +/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) + * + * Changes: + * 1) Now checks for too many args. Need at least one and at most two. + * 2) Don't check for options, as per SUSv3. + * 3) Save some space by using strcmp(). Calling strncmp() here was silly. + */ + +#include "libbb.h" + +/* This is a NOFORK applet. Be very careful! */ + +int basename_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int basename_main(int argc, char **argv) +{ + size_t m, n; + char *s; + + if (((unsigned int)(argc-2)) >= 2) { + bb_show_usage(); + } + + /* It should strip slash: /abc/def/ -> def */ + s = bb_get_last_path_component_strip(*++argv); + + m = strlen(s); + if (*++argv) { + n = strlen(*argv); + if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) { + m -= n; + /*s[m] = '\0'; - redundant */ + } + } + + /* puts(s) will do, but we can do without stdio this way: */ + s[m++] = '\n'; + /* NB: != is correct here: */ + return full_write(STDOUT_FILENO, s, m) != (ssize_t)m; +} |