Match all interfaces

shill_wrapper.c

@@ -26,10 +26,11 @@
 #include <stdlib.h>
 #include <dlfcn.h>
 #include <fcntl.h>
+#include <fnmatch.h>
 #include <unistd.h>
 #include <sys/auxv.h>
 
-#define ORIGINAL_CONF_PATH "/proc/sys/net/ipv6/conf/wlan0/accept_ra"
+#define ORIGINAL_CONF_PATH "/proc/sys/net/ipv6/conf/*/accept_ra"
 
 /* Standard O_TMPFILE includes O_DIRECTORY bit, but we do not want to call
  * va_arg if O_DIRECTORY is set alone. Hence, define a "purer" O_TMPFILE. */
@@ -64,7 +65,7 @@ static void init(void) {
 int open(const char *__file, int __oflag, ...) {
   if (!original_open)
     init();
-  if (!strcmp(__file, ORIGINAL_CONF_PATH))
+  if (!fnmatch(ORIGINAL_CONF_PATH, __file, FNM_PATHNAME))
     __file = "/dev/null";
   if (__oflag & (O_CREAT | PURE_O_TMPFILE)) {
     va_list ap;
@@ -81,7 +82,7 @@ int open(const char *__file, int __oflag, ...) {
 FILE *fopen(const char *path, const char *mode) {
   if (!original_fopen)
     init();
-  if (!strcmp(path, ORIGINAL_CONF_PATH))
+  if (!fnmatch(ORIGINAL_CONF_PATH, path, FNM_PATHNAME))
     path = "/dev/null";
   return (*original_fopen)(path, mode);
 }