[PATCH] %t... in vsnprintf

handling of %t... (ptrdiff_t) in vsnprintf

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index a9bda0a361f39cfd9de38914894cd182545f6bd6..e4e9031dd9c38709b82fd7de2da931ada0cec248 100644 (file)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -269,6 +269,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
        int qualifier;          /* 'h', 'l', or 'L' for integer fields */
                                /* 'z' support added 23/7/1999 S.H.    */
                                /* 'z' changed to 'Z' --davidm 1/25/99 */
+                               /* 't' added for ptrdiff_t */
 
        /* Reject out-of-range values early */
        if (unlikely((int) size < 0)) {
@@ -339,7 +340,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
                /* get the conversion qualifier */
                qualifier = -1;
                if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' ||
-                   *fmt =='Z' || *fmt == 'z') {
+                   *fmt =='Z' || *fmt == 'z' || *fmt == 't') {
                        qualifier = *fmt;
                        ++fmt;
                        if (qualifier == 'l' && *fmt == 'l') {
@@ -467,6 +468,8 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
                                num = (signed long) num;
                } else if (qualifier == 'Z' || qualifier == 'z') {
                        num = va_arg(args, size_t);
+               } else if (qualifier == 't') {
+                       num = va_arg(args, ptrdiff_t);
                } else if (qualifier == 'h') {
                        num = (unsigned short) va_arg(args, int);
                        if (flags & SIGN)