initial commit

3 files changed, 38 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..69e152a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+stopped_exec: stopped_exec.c
+	$(CC) -o stopped_exec stopped_exec.c
diff --git a/stopped_exec b/stopped_exec
new file mode 100755
index 0000000..b203be5
--- /dev/null
+++ b/stopped_exec
diff --git a/stopped_exec.c b/stopped_exec.c
new file mode 100644
index 0000000..2d3ad84
--- /dev/null
+++ b/stopped_exec.c
@@ -0,0 +1,36 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+static char const msg_usage[] = "Usage: %s <command> [args]\nExecutes a program in stopped state.\n";
+
+static
+int usage(char const* cmd)
+{
+	fprintf(stderr, msg_usage, cmd);
+	return 1;
+}
+
+int main(int argc, char *argv[])
+{
+	if( 2 > argc ){
+		return usage(argv[0]);
+	}
+	pid_t const fork_rc = fork();
+	if( 0 == fork_rc ){
+		setsid();
+		kill( 0, SIGSTOP );
+		execvp(argv[1], argv+1);
+		perror("execvp");
+		return 2;
+	}
+	if( 0 > fork_rc ){
+		perror("fork");
+		return 3;
+	}
+	fprintf(stderr, "%ld\n", (long)fork_rc);
+	return 0;
+}