Import sources from 2011-03-30 iso image

1 files changed, 40 insertions, 0 deletions

diff --git a/sys/src/ape/lib/ap/plan9/system.c b/sys/src/ape/lib/ap/plan9/system.c
new file mode 100755
index 000000000..497b0e1f1
--- /dev/null
+++ b/sys/src/ape/lib/ap/plan9/system.c
@@ -0,0 +1,40 @@
+#include "lib.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+int
+system(const char *s)
+{
+	int w, status;
+	pid_t pid;
+	char cmd[30], *oty;
+
+	oty = getenv("cputype");
+	if(!oty)
+		return -1;
+	if(!s)
+		return 1; /* a command interpreter is available */
+	pid = fork();
+	snprintf(cmd, sizeof cmd, "/%s/bin/ape/sh", oty);
+	if(pid == 0) {
+		execl(cmd, "sh", "-c", s, NULL);
+		_exit(1);
+	}
+	if(pid < 0){
+		_syserrno();
+		return -1;
+	}
+	for(;;) {
+		w = wait(&status);
+		if(w == -1 || w == pid)
+			break;
+	}
+
+	if(w == -1){
+		_syserrno();
+		return w;
+	}
+	return status;
+}