utils: Provide a fallback for sigwaitinfo() if needed

[strongswan.git] / src / libstrongswan / utils / utils.c

diff --git a/src/libstrongswan/utils/utils.c b/src/libstrongswan/utils/utils.c
index fca614e..47d72ee 100644 (file)
--- a/src/libstrongswan/utils/utils.c
+++ b/src/libstrongswan/utils/utils.c
@@ -20,6 +20,7 @@
 #include <unistd.h>
 #include <limits.h>
 #include <ctype.h>
+#include <errno.h>
 #ifndef WIN32
 # include <signal.h>
 #endif
@@ -126,7 +127,26 @@ void wait_sigint()
        sigwaitinfo(&set, NULL);
 }
 
-#endif
+#ifndef HAVE_SIGWAITINFO
+int sigwaitinfo(const sigset_t *set, void *info)
+{
+       int sig, err;
+
+       if (info)
+       {       /* we don't replicate siginfo_t, fail if anybody tries to use it */
+               errno = EINVAL;
+               return -1;
+       }
+       err = sigwait(set, &sig);
+       if (err != 0)
+       {
+               errno = err;
+               sig = -1;
+       }
+       return sig;
+}
+#endif /* HAVE_SIGWAITINFO */
+#endif /* WIN32 */
 
 #ifndef HAVE_CLOSEFROM
 /**