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/* vi: set sw=4 ts=4: */
/*
* Signal name/number conversion routines.
*
* Copyright 2006 Rob Landley <rob@landley.net>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include "libbb.h"
#define KILL_MAX_SIG 32
static const char signals[KILL_MAX_SIG][6] = {
// SUSv3 says kill must support these, and specifies the numerical values,
// http://www.opengroup.org/onlinepubs/009695399/utilities/kill.html
// {0, "EXIT"}, {1, "HUP"}, {2, "INT"}, {3, "QUIT"},
// {6, "ABRT"}, {9, "KILL"}, {14, "ALRM"}, {15, "TERM"}
// And Posix adds the following:
// {SIGILL, "ILL"}, {SIGTRAP, "TRAP"}, {SIGFPE, "FPE"}, {SIGUSR1, "USR1"},
// {SIGSEGV, "SEGV"}, {SIGUSR2, "USR2"}, {SIGPIPE, "PIPE"}, {SIGCHLD, "CHLD"},
// {SIGCONT, "CONT"}, {SIGSTOP, "STOP"}, {SIGTSTP, "TSTP"}, {SIGTTIN, "TTIN"},
// {SIGTTOU, "TTOU"}
/* Believe it or not, but some arches have more than 32 SIGs!
* HPPA: SIGSTKFLT == 36. We don't include those. */
/* NB: longest (6-char) names are NOT nul-terminated */
[0] = "EXIT",
#if defined SIGHUP && SIGHUP < KILL_MAX_SIG
[SIGHUP ] = "HUP",
#endif
#if defined SIGINT && SIGINT < KILL_MAX_SIG
[SIGINT ] = "INT",
#endif
#if defined SIGQUIT && SIGQUIT < KILL_MAX_SIG
[SIGQUIT ] = "QUIT",
#endif
#if defined SIGILL && SIGILL < KILL_MAX_SIG
[SIGILL ] = "ILL",
#endif
#if defined SIGTRAP && SIGTRAP < KILL_MAX_SIG
[SIGTRAP ] = "TRAP",
#endif
#if defined SIGABRT && SIGABRT < KILL_MAX_SIG
[SIGABRT ] = "ABRT",
#endif
#if defined SIGBUS && SIGBUS < KILL_MAX_SIG
[SIGBUS ] = "BUS",
#endif
#if defined SIGFPE && SIGFPE < KILL_MAX_SIG
[SIGFPE ] = "FPE",
#endif
#if defined SIGKILL && SIGKILL < KILL_MAX_SIG
[SIGKILL ] = "KILL",
#endif
#if defined SIGUSR1 && SIGUSR1 < KILL_MAX_SIG
[SIGUSR1 ] = "USR1",
#endif
#if defined SIGSEGV && SIGSEGV < KILL_MAX_SIG
[SIGSEGV ] = "SEGV",
#endif
#if defined SIGUSR2 && SIGUSR2 < KILL_MAX_SIG
[SIGUSR2 ] = "USR2",
#endif
#if defined SIGPIPE && SIGPIPE < KILL_MAX_SIG
[SIGPIPE ] = "PIPE",
#endif
#if defined SIGALRM && SIGALRM < KILL_MAX_SIG
[SIGALRM ] = "ALRM",
#endif
#if defined SIGTERM && SIGTERM < KILL_MAX_SIG
[SIGTERM ] = "TERM",
#endif
#if defined SIGSTKFLT && SIGSTKFLT < KILL_MAX_SIG
[SIGSTKFLT] = "STKFLT",
#endif
#if defined SIGCHLD && SIGCHLD < KILL_MAX_SIG
[SIGCHLD ] = "CHLD",
#endif
#if defined SIGCONT && SIGCONT < KILL_MAX_SIG
[SIGCONT ] = "CONT",
#endif
#if defined SIGSTOP && SIGSTOP < KILL_MAX_SIG
[SIGSTOP ] = "STOP",
#endif
#if defined SIGTSTP && SIGTSTP < KILL_MAX_SIG
[SIGTSTP ] = "TSTP",
#endif
#if defined SIGTTIN && SIGTTIN < KILL_MAX_SIG
[SIGTTIN ] = "TTIN",
#endif
#if defined SIGTTOU && SIGTTOU < KILL_MAX_SIG
[SIGTTOU ] = "TTOU",
#endif
#if defined SIGURG && SIGURG < KILL_MAX_SIG
[SIGURG ] = "URG",
#endif
#if defined SIGXCPU && SIGXCPU < KILL_MAX_SIG
[SIGXCPU ] = "XCPU",
#endif
#if defined SIGXFSZ && SIGXFSZ < KILL_MAX_SIG
[SIGXFSZ ] = "XFSZ",
#endif
#if defined SIGVTALRM && SIGVTALRM < KILL_MAX_SIG
[SIGVTALRM] = "VTALRM",
#endif
#if defined SIGPROF && SIGPROF < KILL_MAX_SIG
[SIGPROF ] = "PROF",
#endif
#if defined SIGWINCH && SIGWINCH < KILL_MAX_SIG
[SIGWINCH ] = "WINCH",
#endif
#if defined SIGPOLL && SIGPOLL < KILL_MAX_SIG
[SIGPOLL ] = "POLL",
#endif
#if defined SIGPWR && SIGPWR < KILL_MAX_SIG
[SIGPWR ] = "PWR",
#endif
#if defined SIGSYS && SIGSYS < KILL_MAX_SIG
[SIGSYS ] = "SYS",
#endif
};
// Convert signal name to number.
int get_signum(const char *name)
{
int i;
i = bb_strtou(name, NULL, 10);
if (!errno)
return i;
if (strncasecmp(name, "SIG", 3) == 0)
name += 3;
if (strlen(name) > 6)
return -1;
for (i = 0; i < ARRAY_SIZE(signals); i++)
if (strncasecmp(name, signals[i], 6) == 0)
return i;
#if ENABLE_DESKTOP && (defined(SIGIOT) || defined(SIGIO))
/* These are aliased to other names */
if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') {
#if defined SIGIO
if (!name[2])
return SIGIO;
#endif
#if defined SIGIOT
if ((name[2] | 0x20) == 't' && !name[3])
return SIGIOT;
#endif
}
#endif
return -1;
}
// Convert signal number to name
const char *get_signame(int number)
{
if ((unsigned)number < ARRAY_SIZE(signals)) {
if (signals[number][0]) /* if it's not an empty str */
return signals[number];
}
return itoa(number);
}
// Print the whole signal list
void print_signames(void)
{
int signo;
for (signo = 1; signo < ARRAY_SIZE(signals); signo++) {
const char *name = signals[signo];
if (name[0])
puts(name);
}
}
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