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/* Memory management routines...
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see: <http://www.gnu.org/licenses/>
*/
/* Originally from OpenBSD */
#include "config.h"
#include <stdio.h>
#include <stdint.h>
#include <stdarg.h>
#include <err.h>
#include <errno.h>
#include <sys/param.h>
#include <stdint.h>
#include "safemalloc.h"
void *
fxmalloc(size_t length)
{
void *ptr;
if (length == 0)
errx(1, "malloc: zero size.");
if ((ptr = malloc(length)) == NULL)
err(1, "malloc: couldn't allocate");
return (ptr);
}
void *
fxcalloc(size_t num, size_t length)
{
void *ptr;
if (num == 0 || length == 0)
errx(1, "calloc: zero size");
if (SIZE_MAX / num < length)
errx(1, "num * length > SIZE_MAX");
if ((ptr = calloc(num, length)) == NULL)
err(1, "calloc: couldn't allocate");
return (ptr);
}
void *
fxrealloc(void *oldptr, size_t nmemb, size_t size)
{
size_t newsize = nmemb * size;
void *newptr;
if (newsize == 0)
errx(1, "zero size");
if (SIZE_MAX / nmemb < size)
errx(1, "nmemb * size > SIZE_MAX");
if ((newptr = realloc(oldptr, newsize)) == NULL)
err(1, "fxrealloc failed");
return (newptr);
}
char *
fxstrdup(const char *s)
{
char *ptr;
size_t len;
len = strlen(s) + 1;
ptr = fxmalloc(len);
strlcpy(ptr, s, len);
return (ptr);
}
int
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) {
fvwm_debug(__func__, "xasprintf: %s", strerror(errno));
exit (1);
}
return (i);
}
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