Import sources from 2011-03-30 iso image

1 files changed, 88 insertions, 0 deletions

diff --git a/sys/src/cmd/9nfs/9auth.c b/sys/src/cmd/9nfs/9auth.c
new file mode 100755
index 000000000..588aca4cb
--- /dev/null
+++ b/sys/src/cmd/9nfs/9auth.c
@@ -0,0 +1,88 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+
+#define	NETCHLEN	16		/* max network challenge length	*/
+
+char *	argv0;
+int	debug;
+int	delete;
+
+char *	root = "/n/emelie";
+char *	user;
+char	file[64];
+char	challenge[NETCHLEN];
+char	response[NETCHLEN];
+
+void
+usage(void)
+{
+	printf("usage: %s [-d] username\n", argv0);
+	exit(1);
+}
+
+void
+main(int argc, char **argv)
+{
+	int fd, n;
+
+	for(argv0=*argv++,--argc; argc>0; ++argv,--argc){
+		if(argv[0][0] != '-' || argv[0][1] == '-')
+			break;
+		switch(argv[0][1]){
+		case 'D':
+			++debug;
+			break;
+		case 'd':
+			++delete;
+			break;
+		case 'r':
+			root = argv[0][2] ? &argv[0][2] : (--argc, *++argv);
+			break;
+		default:
+			usage();
+			break;
+		}
+	}
+	if(argc != 1)
+		usage();
+	user = argv[0];
+	snprintf(file, sizeof file, "%s/#%s", root, user);
+	if(debug)
+		printf("debug=%d, file=%s\n", debug, file);
+	if(delete){
+		fd = creat(file, 0600);
+		if(fd < 0){
+			perror(file);
+			exit(1);
+		}
+		exit(0);
+	}
+	fd = open(file, 2);
+	if(fd < 0){
+		perror(file);
+		exit(1);
+	}
+	n = read(fd, challenge, NETCHLEN);
+	if(debug)
+		printf("read %d\n", n);
+	if(n <= 0){
+		printf("read %d: ", n);
+		perror("");
+		exit(1);
+	}
+	printf("challenge: %s\n", challenge);
+	write(1, "response: ", 10);
+	read(0, response, NETCHLEN-1);
+	lseek(fd, 0, 0);
+	n = write(fd, response, NETCHLEN);
+	if(debug)
+		printf("write %d\n", n);
+	if(n <= 0){
+		printf("write %d: ", n);
+		perror("");
+		exit(1);
+	}
+	exit(0);
+}