1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 * Copyright 2015, Joyent, Inc.
26 */
27
28 /* Copyright (c) 1988 AT&T */
29 /* All Rights Reserved */
30
31 #include "lint.h"
32 #include <string.h>
33 #include <stdlib.h>
34 #include <signal.h>
35 #include <sys/types.h>
36 #include <errno.h>
37
38 typedef struct signame {
39 const char *sigstr;
40 const int signum;
41 } signame_t;
42
43 static signame_t signames[] = {
44 { "EXIT", 0 },
45 { "HUP", SIGHUP },
46 { "INT", SIGINT },
47 { "QUIT", SIGQUIT },
48 { "ILL", SIGILL },
49 { "TRAP", SIGTRAP },
50 { "ABRT", SIGABRT },
51 { "IOT", SIGIOT },
52 { "EMT", SIGEMT },
53 { "FPE", SIGFPE },
54 { "KILL", SIGKILL },
55 { "BUS", SIGBUS },
56 { "SEGV", SIGSEGV },
57 { "SYS", SIGSYS },
58 { "PIPE", SIGPIPE },
59 { "ALRM", SIGALRM },
60 { "TERM", SIGTERM },
61 { "USR1", SIGUSR1 },
62 { "USR2", SIGUSR2 },
63 { "CLD", SIGCLD },
64 { "CHLD", SIGCHLD },
65 { "PWR", SIGPWR },
66 { "WINCH", SIGWINCH },
67 { "URG", SIGURG },
68 { "POLL", SIGPOLL },
69 { "IO", SIGPOLL },
70 { "STOP", SIGSTOP },
71 { "TSTP", SIGTSTP },
72 { "CONT", SIGCONT },
73 { "TTIN", SIGTTIN },
74 { "TTOU", SIGTTOU },
75 { "VTALRM", SIGVTALRM },
76 { "PROF", SIGPROF },
77 { "XCPU", SIGXCPU },
78 { "XFSZ", SIGXFSZ },
79 { "WAITING", SIGWAITING },
80 { "LWP", SIGLWP },
81 { "FREEZE", SIGFREEZE },
82 { "THAW", SIGTHAW },
83 { "CANCEL", SIGCANCEL },
84 { "LOST", SIGLOST },
85 { "XRES", SIGXRES },
86 { "JVM1", SIGJVM1 },
87 { "JVM2", SIGJVM2 },
88 { "INFO", SIGINFO },
89 { "RTMIN", _SIGRTMIN },
90 { "RTMIN+1", _SIGRTMIN+1 },
91 { "RTMIN+2", _SIGRTMIN+2 },
92 { "RTMIN+3", _SIGRTMIN+3 },
93 { "RTMIN+4", _SIGRTMIN+4 },
94 { "RTMIN+5", _SIGRTMIN+5 },
95 { "RTMIN+6", _SIGRTMIN+6 },
96 { "RTMIN+7", _SIGRTMIN+7 },
97 { "RTMIN+8", _SIGRTMIN+8 },
98 { "RTMIN+9", _SIGRTMIN+9 },
99 { "RTMIN+10", _SIGRTMIN+10 },
100 { "RTMIN+11", _SIGRTMIN+11 },
101 { "RTMIN+12", _SIGRTMIN+12 },
102 { "RTMIN+13", _SIGRTMIN+13 },
103 { "RTMIN+14", _SIGRTMIN+14 },
104 { "RTMIN+15", _SIGRTMIN+15 },
105 { "RTMIN+16", _SIGRTMIN+16 },
106 { "RTMAX-15", _SIGRTMAX-15 },
107 { "RTMAX-14", _SIGRTMAX-14 },
108 { "RTMAX-13", _SIGRTMAX-13 },
109 { "RTMAX-12", _SIGRTMAX-12 },
110 { "RTMAX-11", _SIGRTMAX-11 },
111 { "RTMAX-10", _SIGRTMAX-10 },
112 { "RTMAX-9", _SIGRTMAX-9 },
113 { "RTMAX-8", _SIGRTMAX-8 },
114 { "RTMAX-7", _SIGRTMAX-7 },
115 { "RTMAX-6", _SIGRTMAX-6 },
116 { "RTMAX-5", _SIGRTMAX-5 },
117 { "RTMAX-4", _SIGRTMAX-4 },
118 { "RTMAX-3", _SIGRTMAX-3 },
119 { "RTMAX-2", _SIGRTMAX-2 },
120 { "RTMAX-1", _SIGRTMAX-1 },
121 { "RTMAX", _SIGRTMAX },
122 };
123
124 #define SIGCNT (sizeof (signames) / sizeof (struct signame))
125
126 static int str2long(const char *, long *);
127
128 static int
129 str2long(const char *p, long *val)
130 {
131 char *q;
132 int error;
133 int saved_errno = errno;
134
135 errno = 0;
136 *val = strtol(p, &q, 10);
137
138 error = ((errno != 0 || q == p || *q != '\0') ? -1 : 0);
139 errno = saved_errno;
140
141 return (error);
142 }
143
144 int
145 str2sig(const char *s, int *sigp)
146 {
147 const struct signame *sp;
148
149 if (*s >= '0' && *s <= '9') {
150 long val;
151
152 if (str2long(s, &val) == -1)
153 return (-1);
154
155 for (sp = signames; sp < &signames[SIGCNT]; sp++) {
156 if (sp->signum == val) {
157 *sigp = sp->signum;
158 return (0);
159 }
160 }
161 return (-1);
162 } else {
163 for (sp = signames; sp < &signames[SIGCNT]; sp++) {
164 if (strcmp(sp->sigstr, s) == 0) {
165 *sigp = sp->signum;
166 return (0);
167 }
168 }
169 return (-1);
170 }
171 }
172
173 int
174 sig2str(int i, char *s)
175 {
176 const struct signame *sp;
177
178 for (sp = signames; sp < &signames[SIGCNT]; sp++) {
179 if (sp->signum == i) {
180 (void) strcpy(s, sp->sigstr);
181 return (0);
182 }
183 }
184 return (-1);
185 }