test for pwrite() (Contributed by Buccapatnam Tirumala, Gautam)

diff --git a/test/Makefile b/test/Makefile
index 6f2a2f04ff58345f0255d13a905033cde982c391..13a423a628ea2b3eeb52a81be90ef9a165bf2e52 100644 (file)
--- a/test/Makefile
+++ b/test/Makefile
@@ -11,7 +11,8 @@ OBJ=  test1  test2  test3  test4  test5  test6  test7  test8  test9  \
               test21 test22 test23        test25 test26 test27 test28 test29 \
        test30 test31 test32        test34 test35 test36 test37 test38 \
        test39 t10a t11a t11b test40 t40a t40b t40c t40d t40e t40f test41 \
-       test42 test44 test45 test47 test48 test49 test50 test51 test52 test53
+       test42 test44 test45 test47 test48 test49 test50 test51 test52 test53 \
+       test54
 
 BIGOBJ=  test20 test24
 ROOTOBJ= test11 test33 test43 test46
@@ -108,3 +109,4 @@ test51: test51.c
 test51-gcc: test51.c
 test52: test52.c
 test52-gcc: test52.c
+test54: test54.c

diff --git a/test/test54.c b/test/test54.c
new file mode 100644 (file)
index 0000000..08468d0
--- /dev/null
+++ b/test/test54.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <err.h>
+#include <stdlib.h>
+
+int main(void)
+{
+       int fd;
+       char *wbuf, *rbuf;
+       off_t off=0;
+       size_t size;
+       ssize_t nwritten;
+       ssize_t nread;
+       char *filename;
+       int i;
+
+       printf("Test 54 ");
+       fflush(stdout);
+
+       if((filename = mktemp("/tmp/pwrite_test_XXXXXXX")) == NULL) {
+               err(1, "Failed to create tempfile");
+       }
+
+       if((fd = open(filename, O_CREAT|O_RDWR)) < 0) {
+               err(1, "Failed to open %s", filename);
+       }
+
+       size = 1 + rand() % 4096;
+       off = rand();
+
+       if((wbuf = malloc(sizeof(char)*size)) == NULL) {
+               errx(1, "Malloc failed.\n");
+       }
+
+       for(i = 0; i < size; i++) {
+               wbuf[i] = 1 + rand()%127;
+       }
+       
+       if((nwritten = pwrite(fd, wbuf, size, off)) < 0) {
+               err(1, "pwrite failed");
+       }
+
+       if((rbuf = malloc(sizeof(char)*nwritten)) == NULL) {
+               errx(1, "Malloc failed.\n");
+       }
+
+       if((nread = pread(fd, rbuf, nwritten, off)) < 0) {
+               err(1, "pread failed");
+       }
+
+       if(strncmp(rbuf, wbuf, nread) != 0) {
+               err(1, "Test failed.\n");
+       }
+
+       printf(" ok\n");
+
+       close(fd);
+       free(wbuf);
+
+       return 0;
+}