Annotation of embedaddon/sudo/compat/sig2str.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (c) 2012 Todd C. Miller <Todd.Miller@courtesan.com>
3: *
4: * Permission to use, copy, modify, and distribute this software for any
5: * purpose with or without fee is hereby granted, provided that the above
6: * copyright notice and this permission notice appear in all copies.
7: *
8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15: */
16:
17: #include <config.h>
18:
19: #include <sys/types.h>
20:
21: #include <errno.h>
22: #include <stdio.h>
23: #ifdef STDC_HEADERS
24: # include <stdlib.h>
25: # include <stddef.h>
26: #else
27: # ifdef HAVE_STDLIB_H
28: # include <stdlib.h>
29: # endif
30: #endif /* STDC_HEADERS */
31: #ifdef HAVE_STRING_H
32: # include <string.h>
33: #endif /* HAVE_STRING_H */
34: #ifdef HAVE_STRINGS_H
35: # include <strings.h>
36: #endif /* HAVE_STRINGS_H */
37: #include <signal.h>
38:
39: #include "missing.h"
40:
41: #if defined(HAVE_DECL_SYS_SIGNAME) && HAVE_DECL_SYS_SIGNAME == 1
42: # define sudo_sys_signame sys_signame
43: #elif defined(HAVE_DECL__SYS_SIGNAME) && HAVE_DECL__SYS_SIGNAME == 1
44: # define sudo_sys_signame _sys_signame
45: #elif defined(HAVE_DECL___SYS_SIGNAME) && HAVE_DECL___SYS_SIGNAME == 1
46: # define sudo_sys_signame __sys_signame
47: #elif defined(HAVE_DECL_SYS_SIGABBREV) && HAVE_DECL_SYS_SIGABBREV == 1
48: # define sudo_sys_signame sys_sigabbrev
49: #else
50: # ifdef HAVE_SYS_SIGABBREV
51: /* sys_sigabbrev is not declared by glibc */
52: # define sudo_sys_signame sys_sigabbrev
53: # endif
54: extern const char *const sudo_sys_signame[NSIG];
55: #endif
56:
57: /*
58: * Translate signal number to name.
59: */
60: int
61: sig2str(int signo, char *signame)
62: {
63: #if defined(SIGRTMIN) && defined(SIGRTMAX)
64: /* Realtime signal support as per Solaris. */
65: if (signo >= SIGRTMIN && signo <= SIGRTMAX) {
66: snprintf(signame, SIG2STR_MAX, "RTMIN+%d", (signo - SIGRTMIN));
67: return 0;
68: }
69: #endif
70: if (signo > 0 && signo < NSIG && sudo_sys_signame[signo] != NULL) {
71: strlcpy(signame, sudo_sys_signame[signo], SIG2STR_MAX);
72: return 0;
73: }
74: errno = EINVAL;
75: return -1;
76: }
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