| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Signal name/number conversion routines.
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| 4 | *
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| 5 | * Copyright 2006 Rob Landley <rob@landley.net>
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| 6 | *
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| 7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 8 | */
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| 9 |
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| 10 | #include "libbb.h"
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| 11 |
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| 12 | static const char signals[32][7] = {
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| 13 | // SUSv3 says kill must support these, and specifies the numerical values,
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| 14 | // http://www.opengroup.org/onlinepubs/009695399/utilities/kill.html
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| 15 | // TODO: "[SIG]EXIT" shouldn't work for kill, right?
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| 16 | // {0, "EXIT"}, {1, "HUP"}, {2, "INT"}, {3, "QUIT"},
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| 17 | // {6, "ABRT"}, {9, "KILL"}, {14, "ALRM"}, {15, "TERM"}
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| 18 | // And Posix adds the following:
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| 19 | // {SIGILL, "ILL"}, {SIGTRAP, "TRAP"}, {SIGFPE, "FPE"}, {SIGUSR1, "USR1"},
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| 20 | // {SIGSEGV, "SEGV"}, {SIGUSR2, "USR2"}, {SIGPIPE, "PIPE"}, {SIGCHLD, "CHLD"},
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| 21 | // {SIGCONT, "CONT"}, {SIGSTOP, "STOP"}, {SIGTSTP, "TSTP"}, {SIGTTIN, "TTIN"},
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| 22 | // {SIGTTOU, "TTOU"}
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| 23 | [0] = "EXIT",
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| 24 | #ifdef SIGHUP
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| 25 | [SIGHUP ] = "HUP",
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| 26 | #endif
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| 27 | #ifdef SIGINT
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| 28 | [SIGINT ] = "INT",
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| 29 | #endif
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| 30 | #ifdef SIGQUIT
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| 31 | [SIGQUIT ] = "QUIT",
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| 32 | #endif
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| 33 | #ifdef SIGILL
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| 34 | [SIGILL ] = "ILL",
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| 35 | #endif
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| 36 | #ifdef SIGTRAP
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| 37 | [SIGTRAP ] = "TRAP",
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| 38 | #endif
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| 39 | #ifdef SIGABRT
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| 40 | [SIGABRT ] = "ABRT",
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| 41 | #endif
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| 42 | #ifdef SIGBUS
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| 43 | [SIGBUS ] = "BUS",
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| 44 | #endif
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| 45 | #ifdef SIGFPE
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| 46 | [SIGFPE ] = "FPE",
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| 47 | #endif
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| 48 | #ifdef SIGKILL
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| 49 | [SIGKILL ] = "KILL",
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| 50 | #endif
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| 51 | #ifdef SIGUSR1
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| 52 | [SIGUSR1 ] = "USR1",
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| 53 | #endif
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| 54 | #ifdef SIGSEGV
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| 55 | [SIGSEGV ] = "SEGV",
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| 56 | #endif
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| 57 | #ifdef SIGUSR2
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| 58 | [SIGUSR2 ] = "USR2",
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| 59 | #endif
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| 60 | #ifdef SIGPIPE
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| 61 | [SIGPIPE ] = "PIPE",
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| 62 | #endif
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| 63 | #ifdef SIGALRM
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| 64 | [SIGALRM ] = "ALRM",
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| 65 | #endif
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| 66 | #ifdef SIGTERM
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| 67 | [SIGTERM ] = "TERM",
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| 68 | #endif
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| 69 | #ifdef SIGSTKFLT
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| 70 | [SIGSTKFLT] = "STKFLT",
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| 71 | #endif
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| 72 | #ifdef SIGCHLD
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| 73 | [SIGCHLD ] = "CHLD",
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| 74 | #endif
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| 75 | #ifdef SIGCONT
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| 76 | [SIGCONT ] = "CONT",
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| 77 | #endif
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| 78 | #ifdef SIGSTOP
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| 79 | [SIGSTOP ] = "STOP",
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| 80 | #endif
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| 81 | #ifdef SIGTSTP
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| 82 | [SIGTSTP ] = "TSTP",
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| 83 | #endif
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| 84 | #ifdef SIGTTIN
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| 85 | [SIGTTIN ] = "TTIN",
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| 86 | #endif
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| 87 | #ifdef SIGTTOU
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| 88 | [SIGTTOU ] = "TTOU",
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| 89 | #endif
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| 90 | #ifdef SIGURG
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| 91 | [SIGURG ] = "URG",
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| 92 | #endif
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| 93 | #ifdef SIGXCPU
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| 94 | [SIGXCPU ] = "XCPU",
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| 95 | #endif
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| 96 | #ifdef SIGXFSZ
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| 97 | [SIGXFSZ ] = "XFSZ",
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| 98 | #endif
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| 99 | #ifdef SIGVTALRM
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| 100 | [SIGVTALRM] = "VTALRM",
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| 101 | #endif
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| 102 | #ifdef SIGPROF
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| 103 | [SIGPROF ] = "PROF",
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| 104 | #endif
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| 105 | #ifdef SIGWINCH
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| 106 | [SIGWINCH ] = "WINCH",
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| 107 | #endif
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| 108 | #ifdef SIGPOLL
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| 109 | [SIGPOLL ] = "POLL",
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| 110 | #endif
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| 111 | #ifdef SIGPWR
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| 112 | [SIGPWR ] = "PWR",
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| 113 | #endif
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| 114 | #ifdef SIGSYS
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| 115 | [SIGSYS ] = "SYS",
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| 116 | #endif
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| 117 | };
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| 118 |
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| 119 | // Convert signal name to number.
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| 120 |
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| 121 | int get_signum(const char *name)
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| 122 | {
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| 123 | int i;
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| 124 |
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| 125 | i = bb_strtou(name, NULL, 10);
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| 126 | if (!errno)
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| 127 | return i;
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| 128 | if (strncasecmp(name, "SIG", 3) == 0)
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| 129 | name += 3;
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| 130 | for (i = 0; i < ARRAY_SIZE(signals); i++)
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| 131 | if (strcasecmp(name, signals[i]) == 0)
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| 132 | return i;
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| 133 |
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| 134 | #if ENABLE_DESKTOP && (defined(SIGIOT) || defined(SIGIO))
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| 135 | /* These are aliased to other names */
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| 136 | if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') {
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| 137 | #ifdef SIGIO
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| 138 | if (!name[2])
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| 139 | return SIGIO;
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| 140 | #endif
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| 141 | #ifdef SIGIOT
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| 142 | if ((name[2] | 0x20) == 't' && !name[3])
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| 143 | return SIGIOT;
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| 144 | #endif
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| 145 | }
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| 146 | #endif
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| 147 |
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| 148 | return -1;
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| 149 | }
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| 150 |
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| 151 | // Convert signal number to name
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| 152 |
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| 153 | const char *get_signame(int number)
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| 154 | {
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| 155 | if ((unsigned)number < ARRAY_SIZE(signals)) {
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| 156 | if (signals[number][0]) /* if it's not an empty str */
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| 157 | return signals[number];
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| 158 | }
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| 159 |
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| 160 | return itoa(number);
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| 161 | }
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