| 1 | |
| 2 | * linux/lib/kasprintf.c
|
| 3 | *
|
| 4 | * Copyright (C) 1991, 1992 Linus Torvalds
|
| 5 |
|
| 6 |
|
| 7 | #include <stdarg.h>
|
| 8 | #include <linux/export.h>
|
| 9 | #include <linux/slab.h>
|
| 10 | #include <linux/types.h>
|
| 11 | #include <linux/string.h>
|
| 12 |
|
| 13 |
|
| 14 | char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
|
| 15 | {
|
| 16 | unsigned int len;
|
| 17 | char *p;
|
| 18 | va_list aq;
|
| 19 |
|
| 20 | va_copy(aq, ap);
|
| 21 | len = vsnprintf(NULL, 0, fmt, aq);
|
| 22 | va_end(aq);
|
| 23 |
|
| 24 | p = kmalloc_track_caller(len+1, gfp);
|
| 25 | if (!p)
|
| 26 | return NULL;
|
| 27 |
|
| 28 | vsnprintf(p, len+1, fmt, ap);
|
| 29 |
|
| 30 | return p;
|
| 31 | }
|
| 32 | EXPORT_SYMBOL(kvasprintf);
|
| 33 |
|
| 34 | char *kasprintf(gfp_t gfp, const char *fmt, ...)
|
| 35 | {
|
| 36 | va_list ap;
|
| 37 | char *p;
|
| 38 |
|
| 39 | va_start(ap, fmt);
|
| 40 | p = kvasprintf(gfp, fmt, ap);
|
| 41 | va_end(ap);
|
| 42 |
|
| 43 | return p;
|
| 44 | }
|
| 45 | EXPORT_SYMBOL(kasprintf);
|