diff options
Diffstat (limited to 'src/usr.bin/what/what.c')
| -rw-r--r-- | src/usr.bin/what/what.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/usr.bin/what/what.c b/src/usr.bin/what/what.c new file mode 100644 index 0000000..0bad985 --- /dev/null +++ b/src/usr.bin/what/what.c @@ -0,0 +1,139 @@ +/* $OpenBSD: what.c,v 1.13 2015/01/22 19:10:17 krw Exp $ */ +/* $NetBSD: what.c,v 1.4 1994/12/20 16:01:03 jtc Exp $ */ + +/* + * Copyright (c) 1980, 1988, 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. 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/types.h> +#include <sys/utsname.h> +#include <stdio.h> +#include <ctype.h> +#include <err.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +static void search(char *); +static void usage(void); + +static int matches; +static int sflag; + +extern char *__progname; + +/* + * what + */ +/* ARGSUSED */ +int +main(int argc, char *argv[]) +{ + struct utsname utsn; + char match[256]; + int c; + + matches = sflag = 0; + while ((c = getopt(argc, argv, "s")) != -1) { + switch (c) { + case 's': + sflag = 1; + break; + default: + usage(); + } + } + argc -= optind; + argv += optind; + + if (uname(&utsn) == -1) + err(1, "uname"); + strlcpy(match, utsn.sysname, sizeof match); + + if (argc < 1) { + usage(); + } else do { + if (!freopen(*argv, "r", stdin)) { + perror(*argv); + exit(matches ? 0 : 1); + } + printf("%s\n", *argv); + search(match); + } while(*++argv); + exit(matches ? 0 : 1); +} + +static void +search(char *match) +{ + int c; + int i; + + while ((c = getchar()) != EOF) { +loop: if (c == '$') { + for (i = 0; match[i]; i++) + if ((c = getchar()) != match[i]) + goto loop; + printf("\t$%s", match); + while (isprint(c = getchar())) { + putchar(c); + if (c == '$') + break; + } + putchar('\n'); + matches++; + if (sflag) + break; + goto loop; + } + if (c != '@') + continue; + if ((c = getchar()) != '(') + goto loop; + if ((c = getchar()) != '#') + goto loop; + if ((c = getchar()) != ')') + goto loop; + putchar('\t'); + while ((c = getchar()) != EOF && c && c != '"' && + c != '>' && c != '\n' && c != '\\') + putchar(c); + putchar('\n'); + matches++; + if (sflag) + break; + } +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "usage: %s [-s] file ...\n", __progname); + exit(1); +} |