Import sources from 2011-03-30 iso image

1 files changed, 60 insertions, 0 deletions

diff --git a/sys/src/ape/lib/bsd/_sock_srv.c b/sys/src/ape/lib/bsd/_sock_srv.c
new file mode 100755
index 000000000..1f2988d03
--- /dev/null
+++ b/sys/src/ape/lib/bsd/_sock_srv.c
@@ -0,0 +1,60 @@
+/* posix */
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+
+/* socket extensions */
+#include <sys/uio.h>
+#include <sys/socket.h>
+
+#include "priv.h"
+
+/* we can't avoid overrunning npath because we don't know how big it is. */
+void
+_sock_srvname(char *npath, char *path)
+{
+	char *p;
+
+	strcpy(npath, "/srv/UD.");
+	p = strrchr(path, '/');
+	if(p == 0)
+		p = path;
+	else
+		p++;
+	strcat(npath, p);
+}
+
+int
+_sock_srv(char *path, int fd)
+{
+	int sfd;
+	char msg[8+256+1];
+
+	/* change the path to something in srv */
+	_sock_srvname(msg, path);
+
+	/* remove any previous instance */
+	unlink(msg);
+
+	/* put the fd in /srv and then close it */
+	sfd = creat(msg, 0666);
+	if(sfd < 0){
+		close(fd);
+		_syserrno();
+		return -1;
+	}
+	snprintf(msg, sizeof msg, "%d", fd);
+	if(write(sfd, msg, strlen(msg)) < 0){
+		_syserrno();
+		close(sfd);
+		close(fd);
+		return -1;
+	}
+	close(sfd);
+	close(fd);
+	return 0;
+}