[linux.git] / lib / kasprintf.c

/*
 *  linux/lib/kasprintf.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 */

#include <stdarg.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>

/* Simplified asprintf. */
char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
{
	unsigned int len;
	char *p;
	va_list aq;

	va_copy(aq, ap);
	len = vsnprintf(NULL, 0, fmt, aq);
	va_end(aq);

	p = kmalloc(len+1, gfp);
	if (!p)
		return NULL;

	vsnprintf(p, len+1, fmt, ap);

	return p;
}
EXPORT_SYMBOL(kvasprintf);

char *kasprintf(gfp_t gfp, const char *fmt, ...)
{
	va_list ap;
	char *p;

	va_start(ap, fmt);
	p = kvasprintf(gfp, fmt, ap);
	va_end(ap);

	return p;
}
EXPORT_SYMBOL(kasprintf);
Commit	Line	Data
96e3e18e SR	1	/*
	2	* linux/lib/kasprintf.c
	3	*
	4	* Copyright (C) 1991, 1992 Linus Torvalds
	5	*/
	6
	7	#include <stdarg.h>
	8	#include <linux/module.h>
	9	#include <linux/types.h>
	10	#include <linux/string.h>
	11
	12	/* Simplified asprintf. */
	13	char kvasprintf(gfp_t gfp, const char fmt, va_list ap)
	14	{
	15	unsigned int len;
	16	char *p;
	17	va_list aq;
	18
	19	va_copy(aq, ap);
	20	len = vsnprintf(NULL, 0, fmt, aq);
	21	va_end(aq);
	22
	23	p = kmalloc(len+1, gfp);
	24	if (!p)
	25	return NULL;
	26
	27	vsnprintf(p, len+1, fmt, ap);
	28
	29	return p;
	30	}
	31	EXPORT_SYMBOL(kvasprintf);
	32
	33	char kasprintf(gfp_t gfp, const char fmt, ...)
	34	{
	35	va_list ap;
	36	char *p;
	37
	38	va_start(ap, fmt);
	39	p = kvasprintf(gfp, fmt, ap);
	40	va_end(ap);
	41
	42	return p;
	43	}
	44	EXPORT_SYMBOL(kasprintf);