1#include <signal.h> 2#include <ctype.h> 3#include <string.h> 4#include <stdlib.h> 5#include <stdio.h> 6 7struct signal_name { 8 const char *name; 9 int number; 10}; 11 12static const struct signal_name signames[] = { 13 /* POSIX signals */ 14 { "EXIT", 0 }, /* 0 */ 15 { "HUP", SIGHUP }, /* 1 */ 16 { "INT", SIGINT }, /* 2 */ 17 { "QUIT", SIGQUIT }, /* 3 */ 18 { "ILL", SIGILL }, /* 4 */ 19 { "ABRT", SIGABRT }, /* 6 */ 20 { "FPE", SIGFPE }, /* 8 */ 21 { "KILL", SIGKILL }, /* 9 */ 22 { "SEGV", SIGSEGV }, /* 11 */ 23 { "PIPE", SIGPIPE }, /* 13 */ 24 { "ALRM", SIGALRM }, /* 14 */ 25 { "TERM", SIGTERM }, /* 15 */ 26 { "USR1", SIGUSR1 }, /* 10 (arm,i386,m68k,ppc), 30 (alpha,sparc*), 16 (mips) */ 27 { "USR2", SIGUSR2 }, /* 12 (arm,i386,m68k,ppc), 31 (alpha,sparc*), 17 (mips) */ 28 { "CHLD", SIGCHLD }, /* 17 (arm,i386,m68k,ppc), 20 (alpha,sparc*), 18 (mips) */ 29 { "CONT", SIGCONT }, /* 18 (arm,i386,m68k,ppc), 19 (alpha,sparc*), 25 (mips) */ 30 { "STOP", SIGSTOP }, /* 19 (arm,i386,m68k,ppc), 17 (alpha,sparc*), 23 (mips) */ 31 { "TSTP", SIGTSTP }, /* 20 (arm,i386,m68k,ppc), 18 (alpha,sparc*), 24 (mips) */ 32 { "TTIN", SIGTTIN }, /* 21 (arm,i386,m68k,ppc,alpha,sparc*), 26 (mips) */ 33 { "TTOU", SIGTTOU }, /* 22 (arm,i386,m68k,ppc,alpha,sparc*), 27 (mips) */ 34 /* Miscellaneous other signals */ 35#ifdef SIGTRAP 36 { "TRAP", SIGTRAP }, /* 5 */ 37#endif 38#ifdef SIGIOT 39 { "IOT", SIGIOT }, /* 6, same as SIGABRT */ 40#endif 41#ifdef SIGEMT 42 { "EMT", SIGEMT }, /* 7 (mips,alpha,sparc*) */ 43#endif 44#ifdef SIGBUS 45 { "BUS", SIGBUS }, /* 7 (arm,i386,m68k,ppc), 10 (mips,alpha,sparc*) */ 46#endif 47#ifdef SIGSYS 48 { "SYS", SIGSYS }, /* 12 (mips,alpha,sparc*) */ 49#endif 50#ifdef SIGSTKFLT 51 { "STKFLT", SIGSTKFLT }, /* 16 (arm,i386,m68k,ppc) */ 52#endif 53#ifdef SIGURG 54 { "URG", SIGURG }, /* 23 (arm,i386,m68k,ppc), 16 (alpha,sparc*), 21 (mips) */ 55#endif 56#ifdef SIGIO 57 { "IO", SIGIO }, /* 29 (arm,i386,m68k,ppc), 23 (alpha,sparc*), 22 (mips) */ 58#endif 59#ifdef SIGPOLL 60 { "POLL", SIGPOLL }, /* same as SIGIO */ 61#endif 62#ifdef SIGCLD 63 { "CLD", SIGCLD }, /* same as SIGCHLD (mips) */ 64#endif 65#ifdef SIGXCPU 66 { "XCPU", SIGXCPU }, /* 24 (arm,i386,m68k,ppc,alpha,sparc*), 30 (mips) */ 67#endif 68#ifdef SIGXFSZ 69 { "XFSZ", SIGXFSZ }, /* 25 (arm,i386,m68k,ppc,alpha,sparc*), 31 (mips) */ 70#endif 71#ifdef SIGVTALRM 72 { "VTALRM", SIGVTALRM }, /* 26 (arm,i386,m68k,ppc,alpha,sparc*), 28 (mips) */ 73#endif 74#ifdef SIGPROF 75 { "PROF", SIGPROF }, /* 27 (arm,i386,m68k,ppc,alpha,sparc*), 29 (mips) */ 76#endif 77#ifdef SIGPWR 78 { "PWR", SIGPWR }, /* 30 (arm,i386,m68k,ppc), 29 (alpha,sparc*), 19 (mips) */ 79#endif 80#ifdef SIGINFO 81 { "INFO", SIGINFO }, /* 29 (alpha) */ 82#endif 83#ifdef SIGLOST 84 { "LOST", SIGLOST }, /* 29 (arm,i386,m68k,ppc,sparc*) */ 85#endif 86#ifdef SIGWINCH 87 { "WINCH", SIGWINCH }, /* 28 (arm,i386,m68k,ppc,alpha,sparc*), 20 (mips) */ 88#endif 89#ifdef SIGUNUSED 90 { "UNUSED", SIGUNUSED }, /* 31 (arm,i386,m68k,ppc) */ 91#endif 92 {0, 0} 93}; 94 95/* 96 if str_sig == NULL returned signal name [*signo], 97 if str_sig != NULL - set *signo from signal_name, 98 findings with digit number or with or without SIG-prefix name 99 100 if startnum=0 flag for support finding zero signal, 101 but str_sig="0" always found, (hmm - standart or realize?) 102 if startnum<0 returned reverse signal_number <-> signal_name 103 if found error - returned NULL 104 105*/ 106 107const char * 108u_signal_names(const char *str_sig, int *signo, int startnum) 109{ 110 static char retstr[16]; 111 const struct signal_name *s = signames; 112 static const char prefix[] = "SIG"; 113 const char *sptr; 114 115 if(startnum) 116 s++; 117 if(str_sig==NULL) { 118 while (s->name != 0) { 119 if(s->number == *signo) 120 break; 121 s++; 122 } 123 } else { 124 if (isdigit(((unsigned char)*str_sig))) { 125 char *endp; 126 long int sn = strtol(str_sig, &endp, 10); 127 /* test correct and overflow */ 128 if(*endp == 0 && sn >= 0 && sn < NSIG) { 129 *signo = (int)sn; 130 /* test for unnamed */ 131 sptr = u_signal_names(0, signo, 0); 132 if(sptr==NULL) 133 return NULL; 134 if(sn!=0) 135 sptr += 3; 136 return sptr; 137 } 138 } else { 139 sptr = str_sig; 140 while (s->name != 0) { 141 if (strcasecmp(s->name, sptr) == 0) { 142 *signo = s->number; 143 if(startnum<0) { 144 sprintf(retstr, "%d", *signo); 145 return retstr; 146 } 147 break; 148 } 149 if(s!=signames && sptr == str_sig && 150 strncasecmp(sptr, prefix, 3) == 0) { 151 sptr += 3; /* strlen(prefix) */ 152 continue; 153 } 154 sptr = str_sig; 155 s++; 156 } 157 } 158 } 159 if(s->name==0) 160 return NULL; 161 if(s!=signames) 162 strcpy(retstr, prefix); 163 else 164 retstr[0] = 0; 165 return strcat(retstr, s->name); 166} 167