diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/vsprintf.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index b8a2f549ab0e..4ee19d0d3910 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c | |||
@@ -980,6 +980,11 @@ char *uuid_string(char *buf, char *end, const u8 *addr, | |||
980 | * [0][1][2][3]-[4][5]-[6][7]-[8][9]-[10][11][12][13][14][15] | 980 | * [0][1][2][3]-[4][5]-[6][7]-[8][9]-[10][11][12][13][14][15] |
981 | * little endian output byte order is: | 981 | * little endian output byte order is: |
982 | * [3][2][1][0]-[5][4]-[7][6]-[8][9]-[10][11][12][13][14][15] | 982 | * [3][2][1][0]-[5][4]-[7][6]-[8][9]-[10][11][12][13][14][15] |
983 | * - 'V' For a struct va_format which contains a format string * and va_list *, | ||
984 | * call vsnprintf(->format, *->va_list). | ||
985 | * Implements a "recursive vsnprintf". | ||
986 | * Do not use this feature without some mechanism to verify the | ||
987 | * correctness of the format string and va_list arguments. | ||
983 | * | 988 | * |
984 | * Note: The difference between 'S' and 'F' is that on ia64 and ppc64 | 989 | * Note: The difference between 'S' and 'F' is that on ia64 and ppc64 |
985 | * function pointers are really function descriptors, which contain a | 990 | * function pointers are really function descriptors, which contain a |
@@ -1025,6 +1030,10 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, | |||
1025 | break; | 1030 | break; |
1026 | case 'U': | 1031 | case 'U': |
1027 | return uuid_string(buf, end, ptr, spec, fmt); | 1032 | return uuid_string(buf, end, ptr, spec, fmt); |
1033 | case 'V': | ||
1034 | return buf + vsnprintf(buf, end - buf, | ||
1035 | ((struct va_format *)ptr)->fmt, | ||
1036 | *(((struct va_format *)ptr)->va)); | ||
1028 | } | 1037 | } |
1029 | spec.flags |= SMALL; | 1038 | spec.flags |= SMALL; |
1030 | if (spec.field_width == -1) { | 1039 | if (spec.field_width == -1) { |