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Oops. I forgot to commit this part of vodz' patch.
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Eric Andersen
parent
3450636169
commit
842757dc96
166
libbb/u_signal_names.c
Normal file
166
libbb/u_signal_names.c
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@ -0,0 +1,166 @@
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#include <signal.h>
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#include <ctype.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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struct signal_name {
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const char *name;
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int number;
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};
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static const struct signal_name signames[] = {
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/* POSIX signals */
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{ "EXIT", 0 }, /* 0 */
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{ "HUP", SIGHUP }, /* 1 */
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{ "INT", SIGINT }, /* 2 */
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{ "QUIT", SIGQUIT }, /* 3 */
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{ "ILL", SIGILL }, /* 4 */
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{ "ABRT", SIGABRT }, /* 6 */
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{ "FPE", SIGFPE }, /* 8 */
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{ "KILL", SIGKILL }, /* 9 */
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{ "SEGV", SIGSEGV }, /* 11 */
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{ "PIPE", SIGPIPE }, /* 13 */
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{ "ALRM", SIGALRM }, /* 14 */
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{ "TERM", SIGTERM }, /* 15 */
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{ "USR1", SIGUSR1 }, /* 10 (arm,i386,m68k,ppc), 30 (alpha,sparc*), 16 (mips) */
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{ "USR2", SIGUSR2 }, /* 12 (arm,i386,m68k,ppc), 31 (alpha,sparc*), 17 (mips) */
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{ "CHLD", SIGCHLD }, /* 17 (arm,i386,m68k,ppc), 20 (alpha,sparc*), 18 (mips) */
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{ "CONT", SIGCONT }, /* 18 (arm,i386,m68k,ppc), 19 (alpha,sparc*), 25 (mips) */
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{ "STOP", SIGSTOP }, /* 19 (arm,i386,m68k,ppc), 17 (alpha,sparc*), 23 (mips) */
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{ "TSTP", SIGTSTP }, /* 20 (arm,i386,m68k,ppc), 18 (alpha,sparc*), 24 (mips) */
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{ "TTIN", SIGTTIN }, /* 21 (arm,i386,m68k,ppc,alpha,sparc*), 26 (mips) */
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{ "TTOU", SIGTTOU }, /* 22 (arm,i386,m68k,ppc,alpha,sparc*), 27 (mips) */
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/* Miscellaneous other signals */
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#ifdef SIGTRAP
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{ "TRAP", SIGTRAP }, /* 5 */
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#endif
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#ifdef SIGIOT
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{ "IOT", SIGIOT }, /* 6, same as SIGABRT */
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#endif
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#ifdef SIGEMT
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{ "EMT", SIGEMT }, /* 7 (mips,alpha,sparc*) */
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#endif
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#ifdef SIGBUS
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{ "BUS", SIGBUS }, /* 7 (arm,i386,m68k,ppc), 10 (mips,alpha,sparc*) */
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#endif
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#ifdef SIGSYS
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{ "SYS", SIGSYS }, /* 12 (mips,alpha,sparc*) */
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#endif
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#ifdef SIGSTKFLT
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{ "STKFLT", SIGSTKFLT }, /* 16 (arm,i386,m68k,ppc) */
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#endif
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#ifdef SIGURG
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{ "URG", SIGURG }, /* 23 (arm,i386,m68k,ppc), 16 (alpha,sparc*), 21 (mips) */
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#endif
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#ifdef SIGIO
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{ "IO", SIGIO }, /* 29 (arm,i386,m68k,ppc), 23 (alpha,sparc*), 22 (mips) */
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#endif
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#ifdef SIGPOLL
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{ "POLL", SIGPOLL }, /* same as SIGIO */
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#endif
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#ifdef SIGCLD
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{ "CLD", SIGCLD }, /* same as SIGCHLD (mips) */
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#endif
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#ifdef SIGXCPU
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{ "XCPU", SIGXCPU }, /* 24 (arm,i386,m68k,ppc,alpha,sparc*), 30 (mips) */
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#endif
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#ifdef SIGXFSZ
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{ "XFSZ", SIGXFSZ }, /* 25 (arm,i386,m68k,ppc,alpha,sparc*), 31 (mips) */
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#endif
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#ifdef SIGVTALRM
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{ "VTALRM", SIGVTALRM }, /* 26 (arm,i386,m68k,ppc,alpha,sparc*), 28 (mips) */
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#endif
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#ifdef SIGPROF
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{ "PROF", SIGPROF }, /* 27 (arm,i386,m68k,ppc,alpha,sparc*), 29 (mips) */
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#endif
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#ifdef SIGPWR
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{ "PWR", SIGPWR }, /* 30 (arm,i386,m68k,ppc), 29 (alpha,sparc*), 19 (mips) */
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#endif
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#ifdef SIGINFO
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{ "INFO", SIGINFO }, /* 29 (alpha) */
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#endif
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#ifdef SIGLOST
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{ "LOST", SIGLOST }, /* 29 (arm,i386,m68k,ppc,sparc*) */
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#endif
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#ifdef SIGWINCH
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{ "WINCH", SIGWINCH }, /* 28 (arm,i386,m68k,ppc,alpha,sparc*), 20 (mips) */
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#endif
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#ifdef SIGUNUSED
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{ "UNUSED", SIGUNUSED }, /* 31 (arm,i386,m68k,ppc) */
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#endif
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{0, 0}
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};
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/*
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if str_sig == NULL returned signal name [*signo],
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if str_sig != NULL - set *signo from signal_name,
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findings with digit number or with or without SIG-prefix name
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if startnum=0 flag for support finding zero signal,
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but str_sig="0" always found, (hmm - standart or realize?)
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if startnum<0 returned reverse signal_number <-> signal_name
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if found error - returned NULL
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*/
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const char *
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u_signal_names(const char *str_sig, int *signo, int startnum)
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{
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static char retstr[16];
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const struct signal_name *s = signames;
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static const char prefix[] = "SIG";
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const char *sptr;
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if(startnum)
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s++;
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if(str_sig==NULL) {
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while (s->name != 0) {
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if(s->number == *signo)
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break;
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s++;
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}
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} else {
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if (isdigit(((unsigned char)*str_sig))) {
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char *endp;
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long int sn = strtol(str_sig, &endp, 10);
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/* test correct and overflow */
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if(*endp == 0 && sn >= 0 && sn < NSIG) {
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*signo = (int)sn;
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/* test for unnamed */
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sptr = u_signal_names(0, signo, 0);
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if(sptr==NULL)
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return NULL;
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if(sn!=0)
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sptr += 3;
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return sptr;
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}
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} else {
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sptr = str_sig;
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while (s->name != 0) {
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if (strcasecmp(s->name, sptr) == 0) {
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*signo = s->number;
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if(startnum<0) {
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sprintf(retstr, "%d", *signo);
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return retstr;
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}
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break;
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}
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if(s!=signames && sptr == str_sig &&
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strncasecmp(sptr, prefix, 3) == 0) {
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sptr += 3; /* strlen(prefix) */
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continue;
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}
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sptr = str_sig;
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s++;
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}
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}
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}
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if(s->name==0)
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return NULL;
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if(s!=signames)
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strcpy(retstr, prefix);
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else
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retstr[0] = 0;
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return strcat(retstr, s->name);
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}
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