7 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
10 * Write a formatted string to newly allocated memory.
12 * @v strp Pointer to hold allocated string
13 * @v fmt Format string
14 * @v args Arguments corresponding to the format string
15 * @ret len Length of formatted string
17 int vasprintf ( char **strp, const char *fmt, va_list args ) {
21 /* Calculate length needed for string */
22 va_copy ( args_tmp, args );
23 len = ( vsnprintf ( NULL, 0, fmt, args_tmp ) + 1 );
26 /* Allocate and fill string */
27 *strp = malloc ( len );
30 return vsnprintf ( *strp, len, fmt, args );
34 * Write a formatted string to newly allocated memory.
36 * @v strp Pointer to hold allocated string
37 * @v fmt Format string
38 * @v ... Arguments corresponding to the format string
39 * @ret len Length of formatted string
41 int asprintf ( char **strp, const char *fmt, ... ) {
45 va_start ( args, fmt );
46 len = vasprintf ( strp, fmt, args );