aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'src/hook_lib/file_hook.c')
-rw-r--r--src/hook_lib/file_hook.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/src/hook_lib/file_hook.c b/src/hook_lib/file_hook.c
index 9e9bddc..5630581 100644
--- a/src/hook_lib/file_hook.c
+++ b/src/hook_lib/file_hook.c
@@ -79,6 +79,12 @@ pid_t (*_fork)();
int (*_setenv)(const char *name, const char *value, int overwrite);
int (*_close)(int fd); // we hooking this, because some programs closes our socket
+// we not hook this functions but we should be sure that these functions
+// are from glibc
+
+int (*_snprintf)(char *str, size_t size, const char *format, ...);
+
+
int is_initialized=0; // when init not lauched yet we should no do any actions
int log_socket=-1;
@@ -159,6 +165,7 @@ void __init_hooks() {
_setenv=(int (*)(const char *name, const char *value, int overwrite)) dlsym(RTLD_NEXT, "setenv");
_close= (int (*)(int fd)) dlsym(RTLD_NEXT, "close");
+ _snprintf=(int (*)(char *str, size_t size, const char *format, ...)) dlsym(RTLD_NEXT, "snprintf");
if(_open==NULL || _open64==NULL ||
_fopen==NULL || _fopen64==NULL ||
@@ -233,16 +240,20 @@ static int __raw_log_event(const char *event_type, const char *filename, char *r
char msg_buff[MAXSOCKETMSGLEN];
int bytes_to_send;
if(strcmp(result,"ERR")==0) {
- bytes_to_send=snprintf(msg_buff,MAXSOCKETMSGLEN,"%lld%c%s%c%s%c%s%c%s/%d",
+ bytes_to_send=_snprintf(msg_buff,MAXSOCKETMSGLEN,"%lld%c%s%c%s%c%s%c%s/%d",
(unsigned long long)time(NULL),0,event_type,0,filename,0,stage,0,result,err);
} else {
- bytes_to_send=snprintf(msg_buff,MAXSOCKETMSGLEN,"%lld%c%s%c%s%c%s%c%s",
+ bytes_to_send=_snprintf(msg_buff,MAXSOCKETMSGLEN,"%lld%c%s%c%s%c%s%c%s",
(unsigned long long)time(NULL),0,event_type,0,filename,0,stage,0,result);
}
if(bytes_to_send>=MAXSOCKETMSGLEN)
return 0;
+ // we need to recount bytes_to_send here because some programs
+ // use hackish snprintf which returns strlen(buf)
+
+
if(send(log_socket,msg_buff,bytes_to_send,0)==-1) {
__doreconnect(); // looks like our socket has been destroyed by logged program
// try to recreate it