From 7ae4bbeab9e82d328687277eaa5d1a71a89606a4 Mon Sep 17 00:00:00 2001
From: jacob <jacob>
Date: Fri, 8 Aug 2003 22:53:42 +0000
Subject: [PATCH] r=shaver  - sort switch statement for sanity  - add
 read/write (r,w)  - add seek-to-zero (z)

---
 lustre/tests/multiop.c | 64 +++++++++++++++++++++++++++++++++-----------------
 1 file changed, 42 insertions(+), 22 deletions(-)

diff --git a/lustre/tests/multiop.c b/lustre/tests/multiop.c
index 1e69f0e..bd310ed 100755
--- a/lustre/tests/multiop.c
+++ b/lustre/tests/multiop.c
@@ -30,7 +30,7 @@ int main(int argc, char **argv)
 {
         char *fname, *commands;
         struct stat st;
-        int fd;
+        int fd = -1;
 
         if (argc != 3) {
                 fprintf(stderr, usage, argv[0]);
@@ -43,19 +43,15 @@ int main(int argc, char **argv)
 
         for (commands = argv[2]; *commands; commands++) {
                 switch (*commands) {
-                case 'o':
-                        fd = open(fname, O_RDONLY);
-                        if (fd == -1) {
-                                perror("open(O_RDONLY)");
-                                exit(1);
-                        }
+                case '_':
+                        pause();
                         break;
-                case 'O':
-                        fd = open(fname, O_CREAT|O_RDWR, 0644);
-                        if (fd == -1) {
-                                perror("open(O_RDWR|O_CREAT");
+                case 'c':
+                        if (close(fd) == -1) {
+                                perror("close");
                                 exit(1);
                         }
+			fd = -1;
                         break;
                 case 'm':
                         if (mknod(fname, S_IFREG | 0644, 0) == -1) {
@@ -63,20 +59,32 @@ int main(int argc, char **argv)
                                 exit(1);
                         }
                         break;
-                case 'u':
-                        if (unlink(fname) == -1) {
-                                perror("unlink");
+                case 'O':
+                        fd = open(fname, O_CREAT|O_RDWR, 0644);
+                        if (fd == -1) {
+                                perror("open(O_RDWR|O_CREAT");
                                 exit(1);
                         }
                         break;
-                case 'c':
-                        if (close(fd) == -1) {
-                                perror("close");
+                case 'o':
+                        fd = open(fname, O_RDONLY);
+                        if (fd == -1) {
+                                perror("open(O_RDONLY)");
                                 exit(1);
                         }
                         break;
-                case '_':
-                        pause();
+		case 'r': {
+			char buf;
+			if (read(fd, &buf, 1) == -1) {
+				perror("read");
+				exit(1);
+			}
+		}
+                case 'S':
+                        if (fstat(fd, &st) == -1) {
+                                perror("fstat");
+                                exit(1);
+                        }
                         break;
                 case 's':
                         if (stat(fname, &st) == -1) {
@@ -84,12 +92,24 @@ int main(int argc, char **argv)
                                 exit(1);
                         }
                         break;
-                case 'S':
-                        if (fstat(fd, &st) == -1) {
-                                perror("fstat");
+                case 'u':
+                        if (unlink(fname) == -1) {
+                                perror("unlink");
                                 exit(1);
                         }
                         break;
+		case 'w':
+			if (write(fd, "w", 1) == -1) {
+				perror("write");
+				exit(1);
+			}
+			break;
+		case 'z':
+			if (lseek(fd, 0, SEEK_SET) == -1) {
+				perror("lseek");
+				exit(1);
+			}
+			break;
                 default:
                         fprintf(stderr, "unknown command \"%c\"\n", *commands);
                         fprintf(stderr, usage, argv[0]);
-- 
1.8.3.1