irmd, tools: checks on binary

The bind tool and the auto_execute function will check if the binary
exists and is executable.

Return value of auto_execute corrected to pid_t

1 files changed, 12 insertions, 0 deletions

diff --git a/src/tools/irm/irm_bind.c b/src/tools/irm/irm_bind.c
index 85e5bd3d..3fc1d5c5 100644
--- a/src/tools/irm/irm_bind.c
+++ b/src/tools/irm/irm_bind.c
@@ -22,6 +22,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <sys/stat.h>
 
 #include <ouroboros/irm.h>
 
@@ -44,6 +45,7 @@ int do_bind(int argc, char ** argv)
         char * name = NULL;
         char * ap_name = NULL;
         uint16_t flags = 0;
+        struct stat s;
 
         while (argc > 0) {
                 if (matches(*argv, "name") == 0) {
@@ -77,5 +79,15 @@ int do_bind(int argc, char ** argv)
                 return -1;
         }
 
+        if (stat(ap_name, &s) != 0) {
+                printf("Application %s does not exist.\n\n", ap_name);
+                return -1;
+        }
+
+        if (!(s.st_mode & S_IXUSR)) {
+                printf("Application %s is not executable.\n\n", ap_name);
+                return -1;
+        }
+
         return irm_bind(name, ap_name, flags, argc, argv);
 }