system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-06 00:20:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix the handling of negative hexadecimal numbers in integer formats.

Browse source 
Note that this bug is unrelated to recent work in this area; it seems
to have been present since revision 1.1.

Obtained from:	NetBSD
This commit is contained in:
David Schultz 2004-01-31 23:16:09 +00:00
parent 26518e8d8c
commit ff81345642
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125282
1 changed files with 9 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
lib/libc/stdio/vfscanf.c
View file

@ -88,6 +88,7 @@ __FBSDID("$FreeBSD$");
#define NDIGITS 0x80 /* no digits detected */
#define PFXOK 0x100 /* 0x prefix is (still) legal */
#define NZDIGITS 0x200 /* no zero digits detected */
#define HAVESIGN 0x10000 /* sign detected */
/*
* Conversion types.
@ -679,13 +680,18 @@ again: c = *fmt++;
case '+': case '-':
if (flags & SIGNOK) {
flags &= ~SIGNOK;
flags |= HAVESIGN;
goto ok;
}
break;
/* x ok iff flag still set & 2nd char */
/*
* x ok iff flag still set & 2nd char (or
* 3rd char if we have a sign).
*/
case 'x': case 'X':
if (flags & PFXOK && p == buf + 1) {
if (flags & PFXOK && p ==
buf + 1 + !!(flags & HAVESIGN)) {
base = 16; /* if %i */
flags &= ~PFXOK;
goto ok;