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6855f6e8 NH |
1 | /* |
2 | * Copyright (c) 1988, 1993, 1994, 2017 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | /* | |
34 | * 2017-10-14 Niklas Hambüchen <mail@nh2.me> | |
35 | * - Extracted signal names mapping from kill.c | |
36 | * | |
37 | * Copyright (C) 2014 Sami Kerola <kerolasa@iki.fi> | |
38 | * Copyright (C) 2014 Karel Zak <kzak@redhat.com> | |
39 | * Copyright (C) 2017 Niklas Hambüchen <mail@nh2.me> | |
40 | */ | |
41 | ||
42 | #include <ctype.h> /* for isdigit() */ | |
6855f6e8 NH |
43 | #include <signal.h> |
44 | #include <unistd.h> | |
45 | #include <string.h> | |
46 | #include <errno.h> | |
47 | ||
48 | #include "c.h" | |
49 | #include "strutils.h" | |
c61e986f | 50 | #include "signames.h" |
6855f6e8 | 51 | |
7b41ad36 | 52 | static const struct ul_signal_name { |
c61e986f KZ |
53 | const char *name; |
54 | int val; | |
7b41ad36 | 55 | } ul_signames[] = { |
c61e986f KZ |
56 | /* POSIX signals */ |
57 | { "HUP", SIGHUP }, /* 1 */ | |
58 | { "INT", SIGINT }, /* 2 */ | |
59 | { "QUIT", SIGQUIT }, /* 3 */ | |
60 | { "ILL", SIGILL }, /* 4 */ | |
61 | #ifdef SIGTRAP | |
62 | { "TRAP", SIGTRAP }, /* 5 */ | |
63 | #endif | |
64 | { "ABRT", SIGABRT }, /* 6 */ | |
65 | #ifdef SIGIOT | |
66 | { "IOT", SIGIOT }, /* 6, same as SIGABRT */ | |
67 | #endif | |
68 | #ifdef SIGEMT | |
69 | { "EMT", SIGEMT }, /* 7 (mips,alpha,sparc*) */ | |
70 | #endif | |
71 | #ifdef SIGBUS | |
72 | { "BUS", SIGBUS }, /* 7 (arm,i386,m68k,ppc), 10 (mips,alpha,sparc*) */ | |
73 | #endif | |
74 | { "FPE", SIGFPE }, /* 8 */ | |
75 | { "KILL", SIGKILL }, /* 9 */ | |
76 | { "USR1", SIGUSR1 }, /* 10 (arm,i386,m68k,ppc), 30 (alpha,sparc*), 16 (mips) */ | |
77 | { "SEGV", SIGSEGV }, /* 11 */ | |
78 | { "USR2", SIGUSR2 }, /* 12 (arm,i386,m68k,ppc), 31 (alpha,sparc*), 17 (mips) */ | |
79 | { "PIPE", SIGPIPE }, /* 13 */ | |
80 | { "ALRM", SIGALRM }, /* 14 */ | |
81 | { "TERM", SIGTERM }, /* 15 */ | |
82 | #ifdef SIGSTKFLT | |
83 | { "STKFLT", SIGSTKFLT }, /* 16 (arm,i386,m68k,ppc) */ | |
84 | #endif | |
85 | { "CHLD", SIGCHLD }, /* 17 (arm,i386,m68k,ppc), 20 (alpha,sparc*), 18 (mips) */ | |
86 | #ifdef SIGCLD | |
87 | { "CLD", SIGCLD }, /* same as SIGCHLD (mips) */ | |
88 | #endif | |
89 | { "CONT", SIGCONT }, /* 18 (arm,i386,m68k,ppc), 19 (alpha,sparc*), 25 (mips) */ | |
90 | { "STOP", SIGSTOP }, /* 19 (arm,i386,m68k,ppc), 17 (alpha,sparc*), 23 (mips) */ | |
91 | { "TSTP", SIGTSTP }, /* 20 (arm,i386,m68k,ppc), 18 (alpha,sparc*), 24 (mips) */ | |
92 | { "TTIN", SIGTTIN }, /* 21 (arm,i386,m68k,ppc,alpha,sparc*), 26 (mips) */ | |
93 | { "TTOU", SIGTTOU }, /* 22 (arm,i386,m68k,ppc,alpha,sparc*), 27 (mips) */ | |
94 | #ifdef SIGURG | |
95 | { "URG", SIGURG }, /* 23 (arm,i386,m68k,ppc), 16 (alpha,sparc*), 21 (mips) */ | |
96 | #endif | |
97 | #ifdef SIGXCPU | |
98 | { "XCPU", SIGXCPU }, /* 24 (arm,i386,m68k,ppc,alpha,sparc*), 30 (mips) */ | |
99 | #endif | |
100 | #ifdef SIGXFSZ | |
101 | { "XFSZ", SIGXFSZ }, /* 25 (arm,i386,m68k,ppc,alpha,sparc*), 31 (mips) */ | |
102 | #endif | |
103 | #ifdef SIGVTALRM | |
104 | { "VTALRM", SIGVTALRM }, /* 26 (arm,i386,m68k,ppc,alpha,sparc*), 28 (mips) */ | |
105 | #endif | |
106 | #ifdef SIGPROF | |
107 | { "PROF", SIGPROF }, /* 27 (arm,i386,m68k,ppc,alpha,sparc*), 29 (mips) */ | |
108 | #endif | |
109 | #ifdef SIGWINCH | |
110 | { "WINCH", SIGWINCH }, /* 28 (arm,i386,m68k,ppc,alpha,sparc*), 20 (mips) */ | |
111 | #endif | |
112 | #ifdef SIGIO | |
113 | { "IO", SIGIO }, /* 29 (arm,i386,m68k,ppc), 23 (alpha,sparc*), 22 (mips) */ | |
114 | #endif | |
115 | #ifdef SIGPOLL | |
116 | { "POLL", SIGPOLL }, /* same as SIGIO */ | |
117 | #endif | |
118 | #ifdef SIGINFO | |
119 | { "INFO", SIGINFO }, /* 29 (alpha) */ | |
120 | #endif | |
121 | #ifdef SIGLOST | |
122 | { "LOST", SIGLOST }, /* 29 (arm,i386,m68k,ppc,sparc*) */ | |
123 | #endif | |
124 | #ifdef SIGPWR | |
125 | { "PWR", SIGPWR }, /* 30 (arm,i386,m68k,ppc), 29 (alpha,sparc*), 19 (mips) */ | |
126 | #endif | |
127 | #ifdef SIGUNUSED | |
128 | { "UNUSED", SIGUNUSED }, /* 31 (arm,i386,m68k,ppc) */ | |
129 | #endif | |
130 | #ifdef SIGSYS | |
131 | { "SYS", SIGSYS }, /* 31 (mips,alpha,sparc*) */ | |
132 | #endif | |
133 | }; | |
6855f6e8 NH |
134 | |
135 | #ifdef SIGRTMIN | |
b6e1977d | 136 | static int rtsig_to_signum(const char *sig) |
6855f6e8 NH |
137 | { |
138 | int num, maxi = 0; | |
139 | char *ep = NULL; | |
140 | ||
141 | if (strncasecmp(sig, "min+", 4) == 0) | |
142 | sig += 4; | |
143 | else if (strncasecmp(sig, "max-", 4) == 0) { | |
144 | sig += 4; | |
145 | maxi = 1; | |
146 | } | |
147 | if (!isdigit(*sig)) | |
148 | return -1; | |
149 | errno = 0; | |
150 | num = strtol(sig, &ep, 10); | |
151 | if (!ep || sig == ep || errno || num < 0) | |
152 | return -1; | |
153 | num = maxi ? SIGRTMAX - num : SIGRTMIN + num; | |
154 | if (num < SIGRTMIN || SIGRTMAX < num) | |
155 | return -1; | |
156 | return num; | |
157 | } | |
158 | #endif | |
159 | ||
b6e1977d | 160 | int signame_to_signum(const char *sig) |
6855f6e8 NH |
161 | { |
162 | size_t n; | |
163 | ||
164 | if (!strncasecmp(sig, "sig", 3)) | |
165 | sig += 3; | |
166 | #ifdef SIGRTMIN | |
167 | /* RT signals */ | |
168 | if (!strncasecmp(sig, "rt", 2)) | |
169 | return rtsig_to_signum(sig + 2); | |
170 | #endif | |
171 | /* Normal signals */ | |
7b41ad36 KZ |
172 | for (n = 0; n < ARRAY_SIZE(ul_signames); n++) { |
173 | if (!strcasecmp(ul_signames[n].name, sig)) | |
174 | return ul_signames[n].val; | |
6855f6e8 NH |
175 | } |
176 | return -1; | |
177 | } | |
c61e986f KZ |
178 | |
179 | const char *signum_to_signame(int signum) | |
180 | { | |
181 | size_t n; | |
182 | ||
7b41ad36 KZ |
183 | for (n = 0; n < ARRAY_SIZE(ul_signames); n++) { |
184 | if (ul_signames[n].val == signum) { | |
185 | return ul_signames[n].name; | |
c61e986f KZ |
186 | } |
187 | } | |
188 | ||
189 | return NULL; | |
190 | } | |
191 | ||
c61e986f KZ |
192 | int get_signame_by_idx(size_t idx, const char **signame, int *signum) |
193 | { | |
7b41ad36 | 194 | if (idx >= ARRAY_SIZE(ul_signames)) |
c61e986f KZ |
195 | return -1; |
196 | ||
197 | if (signame) | |
7b41ad36 | 198 | *signame = ul_signames[idx].name; |
c61e986f | 199 | if (signum) |
7b41ad36 | 200 | *signum = ul_signames[idx].val; |
c61e986f KZ |
201 | return 0; |
202 | ||
203 | } | |
204 |