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Annotation of embedaddon/tmux/compat/err.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.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 MIND, USE, DATA OR PROFITS, WHETHER
        !            13:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            14:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            15:  */
        !            16: 
        !            17: #include <sys/types.h>
        !            18: 
        !            19: #include <errno.h>
        !            20: #include <stdarg.h>
        !            21: #include <stdlib.h>
        !            22: #include <stdio.h>
        !            23: #include <string.h>
        !            24: 
        !            25: #include "compat.h"
        !            26: 
        !            27: void
        !            28: err(int eval, const char *fmt, ...)
        !            29: {
        !            30:        va_list  ap;
        !            31:        int      saved_errno = errno;
        !            32: 
        !            33:        fprintf(stderr, "%s: ", getprogname());
        !            34: 
        !            35:        va_start(ap, fmt);
        !            36:        if (fmt != NULL) {
        !            37:                vfprintf(stderr, fmt, ap);
        !            38:                fprintf(stderr, ": ");
        !            39:        }
        !            40:        va_end(ap);
        !            41: 
        !            42:        fprintf(stderr, "%s\n", strerror(saved_errno));
        !            43:        exit(eval);
        !            44: }
        !            45: 
        !            46: void
        !            47: errx(int eval, const char *fmt, ...)
        !            48: {
        !            49:        va_list  ap;
        !            50: 
        !            51:        fprintf(stderr, "%s: ", getprogname());
        !            52: 
        !            53:        va_start(ap, fmt);
        !            54:        if (fmt != NULL)
        !            55:                vfprintf(stderr, fmt, ap);
        !            56:        va_end(ap);
        !            57: 
        !            58:        putc('\n', stderr);
        !            59:        exit(eval);
        !            60: }
        !            61: 
        !            62: void
        !            63: warn(const char *fmt, ...)
        !            64: {
        !            65:        va_list  ap;
        !            66:        int      saved_errno = errno;
        !            67: 
        !            68:        fprintf(stderr, "%s: ", getprogname());
        !            69: 
        !            70:        va_start(ap, fmt);
        !            71:        if (fmt != NULL) {
        !            72:                vfprintf(stderr, fmt, ap);
        !            73:                fprintf(stderr, ": ");
        !            74:        }
        !            75:        va_end(ap);
        !            76: 
        !            77:        fprintf(stderr, "%s\n", strerror(saved_errno));
        !            78: }
        !            79: 
        !            80: void
        !            81: warnx(const char *fmt, ...)
        !            82: {
        !            83:        va_list  ap;
        !            84: 
        !            85:        fprintf(stderr, "%s: ", getprogname());
        !            86: 
        !            87:        va_start(ap, fmt);
        !            88:        if (fmt != NULL)
        !            89:                vfprintf(stderr, fmt, ap);
        !            90:        va_end(ap);
        !            91: 
        !            92:        putc('\n', stderr);
        !            93: }