mirror of https://github.com/tmux/tmux.git
138 lines
2.5 KiB
C
138 lines
2.5 KiB
C
/* $OpenBSD$ */
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
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);
|
|
}
|