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Annotation of embedaddon/sudo/compat/sig2str.c, revision 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: }