build system: prevent duplicate applet names

[oweals/busybox.git] / applets / applet_tables.c

diff --git a/applets/applet_tables.c b/applets/applet_tables.c
index e3d10c83f1b946ded744b5a0c537d3fa58d749db..ce20374407280e6a4250b76faa465d7e667edd67 100644 (file)
--- a/applets/applet_tables.c
+++ b/applets/applet_tables.c
@@ -84,7 +84,15 @@ int main(int argc, char **argv)
 
        qsort(applets, NUM_APPLETS, sizeof(applets[0]), cmp_name);
 
-       if (!argv[1])
+       for (i = j = 0; i < NUM_APPLETS-1; ++i) {
+               if (cmp_name(applets+i, applets+i+1) == 0) {
+                       fprintf(stderr, "%s: duplicate applet name '%s'\n", argv[0],
+                                       applets[i].name);
+                       j = 1;
+               }
+       }
+
+       if (j != 0 || !argv[1])
                return 1;
        snprintf(tmp1, PATH_MAX, "%s.%u.new", argv[1], (int) getpid());
        i = open(tmp1, O_WRONLY | O_TRUNC | O_CREAT, 0666);