Added a critical section on Windows to make pcap_compile thread safe.

[libpcap] / gencode.c

diff --git a/gencode.c b/gencode.c
index b18663193439ff2b3c201e8ea62462756143b333..28017c4b8871b85a0945fbd051b61a0d1754e6f8 100644 (file)
--- a/gencode.c
+++ b/gencode.c
@@ -377,10 +377,35 @@ syntax()
 static bpf_u_int32 netmask;
 static int snaplen;
 int no_optimize;
+#ifdef WIN32
+static int
+pcap_compile_unsafe(pcap_t *p, struct bpf_program *program,
+            const char *buf, int optimize, bpf_u_int32 mask);
+
+int
+pcap_compile(pcap_t *p, struct bpf_program *program,
+            const char *buf, int optimize, bpf_u_int32 mask)
+{
+       int result;
+
+       EnterCriticalSection(&g_PcapCompileCriticalSection);
+       OutputDebugString("Hello my dear, I locked myself\n");
 
+       result = pcap_compile_unsafe(p, program, buf, optimize, mask);
+
+       LeaveCriticalSection(&g_PcapCompileCriticalSection);
+       
+       return result;
+}
+
+static int
+pcap_compile_unsafe(pcap_t *p, struct bpf_program *program,
+            const char *buf, int optimize, bpf_u_int32 mask)
+#else /* WIN32 */
 int
 pcap_compile(pcap_t *p, struct bpf_program *program,
             const char *buf, int optimize, bpf_u_int32 mask)
+#endif /* WIN32 */
 {
        extern int n_errors;
        const char * volatile xbuf = buf;