| | 1 | /* |
| | 2 | * panic.c - terminate fast in case of error |
| | 3 | * Copyright (C) 1993 Thomas Koenig |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms, with or without |
| | 6 | * modification, are permitted provided that the following conditions |
| | 7 | * are met: |
| | 8 | * 1. Redistributions of source code must retain the above copyright |
| | 9 | * notice, this list of conditions and the following disclaimer. |
| | 10 | * 2. The name of the author(s) may not be used to endorse or promote |
| | 11 | * products derived from this software without specific prior written |
| | 12 | * permission. |
| | 13 | * |
| | 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR |
| | 15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| | 16 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| | 17 | * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, |
| | 18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| | 19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| | 20 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| | 21 | * THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| | 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| | 23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | 24 | */ |
| | 25 | |
| | 26 | #include <sys/cdefs.h> |
| | 27 | __FBSDID("$FreeBSD: src/usr.bin/at/panic.c,v 1.17 2002/05/16 00:47:14 tjr Exp $"); |
| | 28 | |
| | 29 | /* System Headers */ |
| | 30 | |
| | 31 | #include <err.h> |
| | 32 | #include <errno.h> |
| | 33 | #include <stdio.h> |
| | 34 | #include <stdlib.h> |
| | 35 | #include <unistd.h> |
| | 36 | |
| | 37 | /* Local headers */ |
| | 38 | |
| | 39 | #include "panic.h" |
| | 40 | #include "privs.h" |
| | 41 | #include "at.h" |
| | 42 | |
| | 43 | /* External variables */ |
| | 44 | |
| | 45 | /* Global functions */ |
| | 46 | |
| | 47 | void |
| | 48 | panic(const char *a) |
| | 49 | { |
| | 50 | /* Something fatal has happened, print error message and exit. |
| | 51 | */ |
| | 52 | if (fcreated) { |
| | 53 | PRIV_START |
| | 54 | unlink(atfile); |
| | 55 | PRIV_END |
| | 56 | } |
| | 57 | |
| | 58 | errx(EXIT_FAILURE, "%s", a); |
| | 59 | } |
| | 60 | |
| | 61 | void |
| | 62 | perr(const char *a) |
| | 63 | { |
| | 64 | /* Some operating system error; print error message and exit. |
| | 65 | */ |
| | 66 | int serrno = errno; |
| | 67 | |
| | 68 | if (fcreated) { |
| | 69 | PRIV_START |
| | 70 | unlink(atfile); |
| | 71 | PRIV_END |
| | 72 | } |
| | 73 | |
| | 74 | errno = serrno; |
| | 75 | err(EXIT_FAILURE, "%s", a); |
| | 76 | } |
| | 77 | |
| | 78 | void |
| | 79 | usage(void) |
| | 80 | { |
| | 81 | /* Print usage and exit. */ |
| | 82 | fprintf(stderr, "usage: at [-q x] [-f file] [-m] time\n" |
| | 83 | " at -c job [job ...]\n" |
| | 84 | " at [-f file] -t [[CC]YY]MMDDhhmm[.SS]\n" |
| | 85 | " at -r job [job ...]\n" |
| | 86 | " at -l -q queuename\n" |
| | 87 | " at -l [job ...]\n" |
| | 88 | " atq [-q x] [-v]\n" |
| | 89 | " atrm job [job ...]\n" |
| | 90 | " batch [-f file] [-m]\n"); |
| | 91 | exit(EXIT_FAILURE); |
| | 92 | } |
projects / apple / system_cmds.git / blame_incremental