diff options
Diffstat (limited to 'usr.bin/basename/basename.c')
| -rw-r--r-- | usr.bin/basename/basename.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/usr.bin/basename/basename.c b/usr.bin/basename/basename.c new file mode 100644 index 0000000..4c1023f --- /dev/null +++ b/usr.bin/basename/basename.c @@ -0,0 +1,143 @@ +/*- + * Copyright (c) 1991, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static const char copyright[] = +"@(#) Copyright (c) 1991, 1993, 1994\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif + +#if 0 +#ifndef lint +static char sccsid[] = "@(#)basename.c 8.4 (Berkeley) 5/4/95"; +#endif /* not lint */ +#endif + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <err.h> +#include <libgen.h> +#include <limits.h> +#include <locale.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <wchar.h> + +void stripsuffix(char *, const char *, size_t); +void usage(void); + +int +main(int argc, char **argv) +{ + char *p, *suffix; + size_t suffixlen; + int aflag, ch; + + setlocale(LC_ALL, ""); + + aflag = 0; + suffix = NULL; + suffixlen = 0; + + while ((ch = getopt(argc, argv, "as:")) != -1) + switch(ch) { + case 'a': + aflag = 1; + break; + case 's': + suffix = optarg; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc < 1) + usage(); + + if (!*argv[0]) { + printf("\n"); + exit(0); + } + if ((p = basename(argv[0])) == NULL) + err(1, "%s", argv[0]); + if ((suffix == NULL && !aflag) && argc == 2) { + suffix = argv[1]; + argc--; + } + if (suffix != NULL) + suffixlen = strlen(suffix); + while (argc--) { + if ((p = basename(*argv)) == NULL) + err(1, "%s", argv[0]); + stripsuffix(p, suffix, suffixlen); + argv++; + (void)printf("%s\n", p); + } + exit(0); +} + +void +stripsuffix(char *p, const char *suffix, size_t suffixlen) +{ + char *q, *r; + mbstate_t mbs; + size_t n; + + if (suffixlen && (q = strchr(p, '\0') - suffixlen) > p && + strcmp(suffix, q) == 0) { + /* Ensure that the match occurred on a character boundary. */ + memset(&mbs, 0, sizeof(mbs)); + for (r = p; r < q; r += n) { + n = mbrlen(r, MB_LEN_MAX, &mbs); + if (n == (size_t)-1 || n == (size_t)-2) { + memset(&mbs, 0, sizeof(mbs)); + n = 1; + } + } + /* Chop off the suffix. */ + if (q == r) + *q = '\0'; + } +} + +void +usage(void) +{ + + (void)fprintf(stderr, +"usage: basename string [suffix]\n" +" basename [-a] [-s suffix] string [...]\n"); + exit(1); +} |
