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Annotation of docbook2mdoc/xmalloc.c, Revision 1.1

1.1     ! schwarze    1: /* $Id$ */
        !             2: /*
        !             3:  * Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
        !             4:  *
        !             5:  * Permission to use, copy, modify, and distribute this software for any
        !             6:  * purpose with or without fee is hereby granted, provided that the above
        !             7:  * copyright notice and this permission notice appear in all copies.
        !             8:  *
        !             9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
        !            10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
        !            12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            16:  */
        !            17: #include <sys/types.h>
        !            18:
        !            19: #include <stdarg.h>
        !            20: #include <stdio.h>
        !            21: #include <stdlib.h>
        !            22: #include <string.h>
        !            23:
        !            24: #include "xmalloc.h"
        !            25:
        !            26: /*
        !            27:  * The implementation of the exiting allocator functions.
        !            28:  */
        !            29:
        !            30: void *
        !            31: xcalloc(size_t nmemb, size_t size)
        !            32: {
        !            33:        void    *p;
        !            34:
        !            35:        if ((p = calloc(nmemb, size)) == NULL) {
        !            36:                perror(NULL);
        !            37:                exit(6);
        !            38:        }
        !            39:        return p;
        !            40: }
        !            41:
        !            42: void *
        !            43: xrealloc(void *p, size_t size)
        !            44: {
        !            45:        if ((p = realloc(p, size)) == NULL) {
        !            46:                perror(NULL);
        !            47:                exit(6);
        !            48:        }
        !            49:        return p;
        !            50: }
        !            51:
        !            52: void *
        !            53: xreallocarray(void *p, size_t nmemb, size_t size)
        !            54: {
        !            55:        if ((p = reallocarray(p, nmemb, size)) == NULL) {
        !            56:                perror(NULL);
        !            57:                exit(6);
        !            58:        }
        !            59:        return p;
        !            60: }
        !            61:
        !            62: char *
        !            63: xstrdup(const char *in)
        !            64: {
        !            65:        char    *out;
        !            66:
        !            67:        if ((out = strdup(in)) == NULL) {
        !            68:                perror(NULL);
        !            69:                exit(6);
        !            70:        }
        !            71:        return out;
        !            72: }
        !            73:
        !            74: char *
        !            75: xstrndup(const char *in, size_t maxlen)
        !            76: {
        !            77:        char    *out;
        !            78:
        !            79:        if ((out = strndup(in, maxlen)) == NULL) {
        !            80:                perror(NULL);
        !            81:                exit(6);
        !            82:        }
        !            83:        return out;
        !            84: }
        !            85:
        !            86: int
        !            87: xasprintf(char **dest, const char *fmt, ...)
        !            88: {
        !            89:        va_list  ap;
        !            90:        int      ret;
        !            91:
        !            92:        va_start(ap, fmt);
        !            93:        ret = vasprintf(dest, fmt, ap);
        !            94:        va_end(ap);
        !            95:
        !            96:        if (ret == -1) {
        !            97:                perror(NULL);
        !            98:                exit(6);
        !            99:        }
        !           100:        return ret;
        !           101: }

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