Exit with failure from detached fork.

sh1r4s3 · sh1r4s3 · commit 7c35edfc47a2 · 2019-08-06T01:39:34.000+03:00
If detached fork can not execve program then exit from this fork with failure.
diff --git a/runns.c b/runns.c
@@ -204,7 +204,7 @@ main(int argc, char **argv)
         setns(netfd, CLONE_NEWNET);
         drop_priv(cred.uid, &pw);
         if (execve(program, (char * const *)args, (char * const *)envs) == -1)
-          perror(0);
+          return EXIT_FAILURE;
       }
       else
         waitpid(child, 0, 0);

Original file line number	Diff line number	Diff line change
`@@ -204,7 +204,7 @@ main(int argc, char **argv)`
`204`	`204`	`setns(netfd, CLONE_NEWNET);`
`205`	`205`	`drop_priv(cred.uid, &pw);`
`206`	`206`	`if (execve(program, (char * const )args, (char const *)envs) == -1)`
`207`		`- perror(0);`
	`207`	`+ return EXIT_FAILURE;`
`208`	`208`	`}`
`209`	`209`	`else`
`210`	`210`	`waitpid(child, 0, 0);`