Return to xmalloc.c CVS log

Up to [local] / src / usr.bin / tmux

Annotation of src/usr.bin/tmux/xmalloc.c, Revision 1.8

1.8     ! tobias      1: /* $OpenBSD: xmalloc.c,v 1.7 2014/10/20 23:57:14 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2004 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
1.6       nicm       19: #include <sys/types.h>
1.1       nicm       20:
                     21: #include <stdint.h>
                     22: #include <stdlib.h>
                     23: #include <string.h>
                     24:
                     25: #include "tmux.h"
                     26:
                     27: char *
1.8     ! tobias     28: xstrdup(const char *str)
1.1       nicm       29: {
1.8     ! tobias     30:        char    *cp;
1.1       nicm       31:
1.8     ! tobias     32:        if ((cp = strdup(str)) == NULL)
        !            33:                fatal("xstrdup");
        !            34:        return (cp);
1.1       nicm       35: }
                     36:
                     37: void *
                     38: xcalloc(size_t nmemb, size_t size)
                     39: {
1.3       deraadt    40:        void    *ptr;
1.1       nicm       41:
1.3       deraadt    42:        if (size == 0 || nmemb == 0)
1.8     ! tobias     43:                fatalx("xcalloc: zero size");
1.3       deraadt    44:        if ((ptr = calloc(nmemb, size)) == NULL)
1.8     ! tobias     45:                log_fatal("xcalloc: allocating %zu bytes", size);
1.1       nicm       46:
1.3       deraadt    47:        return (ptr);
1.1       nicm       48: }
                     49:
                     50: void *
                     51: xmalloc(size_t size)
                     52: {
                     53:        void    *ptr;
                     54:
1.3       deraadt    55:        if (size == 0)
1.8     ! tobias     56:                fatalx("xmalloc: zero size");
1.3       deraadt    57:        if ((ptr = malloc(size)) == NULL)
1.8     ! tobias     58:                log_fatal("xmalloc: allocating %zu bytes", size);
1.1       nicm       59:
1.3       deraadt    60:        return (ptr);
1.1       nicm       61: }
                     62:
                     63: void *
1.5       nicm       64: xrealloc(void *oldptr, size_t newsize)
                     65: {
                     66:        void    *newptr;
                     67:
                     68:        if (newsize == 0)
1.8     ! tobias     69:                fatalx("xrealloc: zero size");
1.5       nicm       70:        if ((newptr = realloc(oldptr, newsize)) == NULL)
1.8     ! tobias     71:                log_fatal("xrealloc: allocating %zu bytes", newsize);
1.5       nicm       72:
                     73:        return (newptr);
                     74: }
                     75:
                     76: void *
                     77: xreallocarray(void *oldptr, size_t nmemb, size_t size)
1.1       nicm       78: {
                     79:        void    *newptr;
                     80:
1.8     ! tobias     81:        if (nmemb == 0 || size == 0)
        !            82:                fatalx("xreallocarray: zero size");
        !            83:        if ((newptr = reallocarray(oldptr, nmemb, size)) == NULL)
        !            84:                log_fatal("xreallocarray: allocating %zu * %zu bytes",
        !            85:                    nmemb, size);
1.1       nicm       86:
1.3       deraadt    87:        return (newptr);
1.1       nicm       88: }
                     89:
1.7       nicm       90: int
1.1       nicm       91: xasprintf(char **ret, const char *fmt, ...)
                     92: {
1.3       deraadt    93:        va_list ap;
                     94:        int     i;
1.1       nicm       95:
1.3       deraadt    96:        va_start(ap, fmt);
                     97:        i = xvasprintf(ret, fmt, ap);
                     98:        va_end(ap);
1.1       nicm       99:
                    100:        return (i);
                    101: }
                    102:
                    103: int
                    104: xvasprintf(char **ret, const char *fmt, va_list ap)
                    105: {
                    106:        int     i;
                    107:
                    108:        i = vasprintf(ret, fmt, ap);
1.3       deraadt   109:        if (i < 0 || *ret == NULL)
1.8     ! tobias    110:                fatal("xvasprintf");
1.1       nicm      111:
1.3       deraadt   112:        return (i);
1.1       nicm      113: }
                    114:
1.7       nicm      115: int
1.1       nicm      116: xsnprintf(char *buf, size_t len, const char *fmt, ...)
                    117: {
1.3       deraadt   118:        va_list ap;
                    119:        int     i;
1.1       nicm      120:
1.3       deraadt   121:        va_start(ap, fmt);
                    122:        i = xvsnprintf(buf, len, fmt, ap);
                    123:        va_end(ap);
1.1       nicm      124:
                    125:        return (i);
                    126: }
                    127:
                    128: int
                    129: xvsnprintf(char *buf, size_t len, const char *fmt, va_list ap)
                    130: {
                    131:        int     i;
                    132:
                    133:        if (len > INT_MAX)
1.8     ! tobias    134:                fatalx("xvsnprintf: len > INT_MAX");
1.1       nicm      135:
                    136:        i = vsnprintf(buf, len, fmt, ap);
1.8     ! tobias    137:        if (i < 0 || i >= (int)len)
        !           138:                fatalx("xvsnprintf: overflow");
1.1       nicm      139:
1.3       deraadt   140:        return (i);
1.1       nicm      141: }