#define _HOOK_PRE(type, name) \
int handle; \
- type result; \
DLSYM_FUNCTION(real_ ## name, #name);
#define _HOOK_PRE_FD(type, name, fd) \
+ type result; \
+ _HOOK_PRE_FD_(type, name, fd)
+#define _HOOK_PRE_FD_(type, name, fd) \
_HOOK_PRE(type, name) \
handle = check_handle_fd(fd); \
if (handle) { \
- handle_fd_pre(fd, handle); \
+ handle_fd_pre(fd); \
}
#define _HOOK_PRE_FILE(type, name, file) \
+ type result; \
_HOOK_PRE(type, name) \
handle = check_handle_fd(fileno(file)); \
if (handle) { \
- handle_file_pre(file, handle); \
+ handle_file_pre(file); \
}
-/* Save and restore the errno to make sure we return the errno of the original
- * function call. */
-#define _HOOK_POST_FD(fd) \
+#define _HOOK_POST_FD_(fd) \
if (handle) { \
- int saved_errno = errno; \
- handle_fd_post(fd, handle); \
- errno = saved_errno; \
- } \
+ handle_fd_post(fd); \
+ }
+#define _HOOK_POST_FD(fd) \
+ _HOOK_POST_FD_(fd) \
return result;
#define _HOOK_POST_FILE(file) \
if (handle) { \
- int saved_errno = errno; \
- handle_file_post(file, handle); \
- errno = saved_errno; \
+ handle_file_post(file); \
} \
return result;
+#define HOOK_VOID1(type, name, fd, type1, arg1) \
+ static type (*real_ ## name)(type1); \
+ type name(type1 arg1) { \
+ _HOOK_PRE_FD_(type, name, fd) \
+ real_ ## name(arg1); \
+ _HOOK_POST_FD_(fd) \
+ }
+
#define HOOK_FD3(type, name, fd, type1, arg1, type2, arg2, type3, arg3) \
static type (*real_ ## name)(type1, type2, type3); \
type name(type1 arg1, type2 arg2, type3 arg3) { \