diff options
Diffstat (limited to 'shell_cmds/whereis/whereis.c')
| -rw-r--r-- | shell_cmds/whereis/whereis.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/shell_cmds/whereis/whereis.c b/shell_cmds/whereis/whereis.c new file mode 100644 index 0000000..680f1f3 --- /dev/null +++ b/shell_cmds/whereis/whereis.c @@ -0,0 +1,128 @@ +/* $NetBSD: whereis.c,v 1.8 1997/10/20 02:22:55 mrg Exp $ */ + +/*- + * Copyright (c) 1993 + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 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. + */ + +#include <sys/cdefs.h> +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1993\n\ + The Regents of the University of California. All rights reserved.\n"); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)whereis.c 8.3 (Berkeley) 5/4/95"; +#endif +__RCSID("$NetBSD: whereis.c,v 1.8 1997/10/20 02:22:55 mrg Exp $"); +#endif /* not lint */ + +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/sysctl.h> + +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +void usage __P((void)); +int main __P((int, char *[])); + +int +main(argc, argv) + int argc; + char *argv[]; +{ + struct stat sb; + size_t len; + int ch, sverrno, mib[2]; + char *p, *t, *std, path[MAXPATHLEN]; + + while ((ch = getopt(argc, argv, "")) != -1) + switch (ch) { + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc == 0) + usage(); + + /* Retrieve the standard path. */ + mib[0] = CTL_USER; + mib[1] = USER_CS_PATH; + if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) + return (-1); + if (len == 0) + err(1, "user_cs_path: sysctl: zero length\n"); + if ((std = malloc(len)) == NULL) + err(1, "%s", ""); + if (sysctl(mib, 2, std, &len, NULL, 0) == -1) { + sverrno = errno; + free(std); + errno = sverrno; + err(1, "sysctl: user_cs_path"); + } + + /* For each path, for each program... */ + for (; *argv; ++argv) + for (p = std;; *p++ = ':') { + t = p; + if ((p = strchr(p, ':')) != NULL) { + *p = '\0'; + if (t == p) + t = "."; + } else + if (strlen(t) == 0) + t = "."; + (void)snprintf(path, sizeof(path), "%s/%s", t, *argv); + if (!stat(path, &sb)) + (void)printf("%s\n", path); + if (p == NULL) + break; + } + + return (0); +} + +void +usage() +{ + + (void)fprintf(stderr, "usage: whereis program [...]\n"); + exit (1); +} |