Work at SourceForge, help us to make it a better place! We have an immediate need for a Support Technician in our San Francisco or Denver office.

Close

[cd1ae9]: xmalloc.c Maximize Restore History

Download this file

xmalloc.c    146 lines (115 with data), 2.7 kB

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/* $Id: xmalloc.c,v 1.12 2009-10-28 23:12:38 tcunha Exp $ */
/*
* Copyright (c) 2004 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <errno.h>
#include <libgen.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
char *
xstrdup(const char *s)
{
char *ptr;
size_t len;
len = strlen(s) + 1;
ptr = xmalloc(len);
strlcpy(ptr, s, len);
return (ptr);
}
void *
xcalloc(size_t nmemb, size_t size)
{
void *ptr;
if (size == 0 || nmemb == 0)
fatalx("zero size");
if (SIZE_MAX / nmemb < size)
fatalx("nmemb * size > SIZE_MAX");
if ((ptr = calloc(nmemb, size)) == NULL)
fatal("xcalloc failed");
return (ptr);
}
void *
xmalloc(size_t size)
{
void *ptr;
if (size == 0)
fatalx("zero size");
if ((ptr = malloc(size)) == NULL)
fatal("xmalloc failed");
return (ptr);
}
void *
xrealloc(void *oldptr, size_t nmemb, size_t size)
{
size_t newsize = nmemb * size;
void *newptr;
if (newsize == 0)
fatalx("zero size");
if (SIZE_MAX / nmemb < size)
fatalx("nmemb * size > SIZE_MAX");
if ((newptr = realloc(oldptr, newsize)) == NULL)
fatal("xrealloc failed");
return (newptr);
}
void
xfree(void *ptr)
{
if (ptr == NULL)
fatalx("null pointer");
free(ptr);
}
int printflike2
xasprintf(char **ret, const char *fmt, ...)
{
va_list ap;
int i;
va_start(ap, fmt);
i = xvasprintf(ret, fmt, ap);
va_end(ap);
return (i);
}
int
xvasprintf(char **ret, const char *fmt, va_list ap)
{
int i;
i = vasprintf(ret, fmt, ap);
if (i < 0 || *ret == NULL)
fatal("xvasprintf failed");
return (i);
}
int printflike3
xsnprintf(char *buf, size_t len, const char *fmt, ...)
{
va_list ap;
int i;
va_start(ap, fmt);
i = xvsnprintf(buf, len, fmt, ap);
va_end(ap);
return (i);
}
int
xvsnprintf(char *buf, size_t len, const char *fmt, va_list ap)
{
int i;
if (len > INT_MAX)
fatalx("len > INT_MAX");
i = vsnprintf(buf, len, fmt, ap);
if (i < 0)
fatal("vsnprintf failed");
return (i);
}