root/lib/kasprintf.c

DEFINITIONS

1. kvasprintf
2. kasprintf

/*
 *  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);