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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /lib/kasprintf.c |
Initial import
Diffstat (limited to 'lib/kasprintf.c')
-rw-r--r-- | lib/kasprintf.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/kasprintf.c b/lib/kasprintf.c new file mode 100644 index 000000000..32f12150f --- /dev/null +++ b/lib/kasprintf.c @@ -0,0 +1,45 @@ +/* + * linux/lib/kasprintf.c + * + * Copyright (C) 1991, 1992 Linus Torvalds + */ + +#include <stdarg.h> +#include <linux/export.h> +#include <linux/slab.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_track_caller(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); |