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authorEric Andersen <andersen@codepoet.org>2001-08-02 05:18:55 +0000
committerEric Andersen <andersen@codepoet.org>2001-08-02 05:18:55 +0000
commit842757dc9684220ced5aef7ed146a4265d0eb37c (patch)
treebfafe7f4fa2fd9aaa9551fb43b5cb30c2050b629
parent34506361697643277042fc8d7294bc17a27d4e28 (diff)
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Oops. I forgot to commit this part of vodz' patch.
Diffstat
-rw-r--r--libbb/u_signal_names.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/libbb/u_signal_names.c b/libbb/u_signal_names.c
new file mode 100644
index 000000000..623b10312
--- /dev/null
+++ b/libbb/u_signal_names.c
@@ -0,0 +1,166 @@
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}
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