]> git.ipfire.org Git - thirdparty/glibc.git/blob - include/stdio_ext.h
Further harden glibc malloc metadata against 1-byte overflows.
[thirdparty/glibc.git] / include / stdio_ext.h
1 #ifndef _STDIO_EXT_H
2 #include <stdio-common/stdio_ext.h>
3
4 # ifndef _ISOMAC
5
6 libc_hidden_proto (__fsetlocking)
7
8 #define __fsetlocking(fp, type) \
9 ({ int __result = ((fp->_flags & _IO_USER_LOCK) \
10 ? FSETLOCKING_BYCALLER : FSETLOCKING_INTERNAL); \
11 \
12 if (type != FSETLOCKING_QUERY) \
13 { \
14 fp->_flags &= ~_IO_USER_LOCK; \
15 if (type == FSETLOCKING_BYCALLER) \
16 fp->_flags |= _IO_USER_LOCK; \
17 } \
18 \
19 __result; \
20 })
21
22 # endif /* !_ISOMAC */
23 #endif /* stdio_ext.h */