add testcases for shm_{open,unlink}

Reported-by: Mikael Lund Jepsen <mlj@iccc.dk>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

diff --git a/librt/shm.c b/librt/shm.c
index 3f33d68..c7c0ee4 100644 (file)
--- a/librt/shm.c
+++ b/librt/shm.c
@@ -45,6 +45,10 @@ static char* get_shm_name(const char*name)
        if (i < 0) {
                free(path);
                return NULL;
+       } else if (i >= NAME_MAX) {
+               free(path);
+               __set_errno(ENAMETOOLONG);
+               return NULL;
        }
 #endif
        return path;

diff --git a/test/librt/Makefile b/test/librt/Makefile
new file mode 100644 (file)
index 0000000..362d5d5
--- /dev/null
+++ b/test/librt/Makefile
@@ -0,0 +1,6 @@
+# uClibc shm tests
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+
+include ../Test.mak
+
+LDFLAGS_shmtest := -lrt

diff --git a/test/librt/shmtest.c b/test/librt/shmtest.c
new file mode 100644 (file)
index 0000000..8f40047
--- /dev/null
+++ b/test/librt/shmtest.c
@@ -0,0 +1,102 @@
+/* Copyright (C) 2009 Mikael Lund Jepsen <mlj@iccc.dk>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+char shared_name[] = "/sharetest";
+int test_data[11] = {0,1,2,3,4,5,6,7,8,9,10};
+
+int main(void) {
+       int pfds[2];
+       pid_t pid;
+       int fd;
+       int test_data_fails = 0;
+       char *ptest_data;
+       unsigned int i;
+       char buf[30];
+       int rv;
+
+       pipe(pfds);
+
+       switch(pid = fork()) {
+       case -1:
+               perror("fork");
+               exit(1);        /* parent exits */
+
+       case 0:
+               /* Child */
+
+               /* wait for parent */
+               read(pfds[0], buf, 5);
+
+               fd =  shm_open(shared_name, O_RDWR, DEFFILEMODE);
+               if (fd == -1) {
+                       perror("CHILD - shm_open(existing):");
+                       exit(1);
+               } else {
+                       ptest_data = mmap(0, sizeof(test_data), PROT_READ + PROT_WRITE, MAP_SHARED, fd, 0);
+                       if (ptest_data != MAP_FAILED) {
+                               for (i=0; i < sizeof(test_data); i++) {
+                                       if (ptest_data[i] != test_data[i]) {
+                                               printf("%-40s: Offset %d, local %d, shm %d", "Compare memory error", i, test_data[i], ptest_data[i]);
+                                               test_data_fails++;
+                                       }
+                               }
+                               if (test_data_fails == 0)
+                                       printf("%-40s: %s\n", "Compare memory", "Success");
+
+                               munmap(ptest_data, sizeof(test_data));
+                       }
+               }
+               exit(0);
+
+       default:
+               /* Parent */
+               fd = shm_open(shared_name, O_RDWR+O_CREAT+O_EXCL, DEFFILEMODE );
+               if (fd == -1) {
+                       perror("PARENT - shm_open(create):");
+               } else {
+                       if ((ftruncate(fd, sizeof(test_data))) == -1)
+                       {
+                               printf("%-40s: %s", "ftruncate", strerror(errno));
+                               shm_unlink(shared_name);
+                               return 0;
+                       }
+
+                       ptest_data = mmap(0, sizeof(test_data), PROT_READ + PROT_WRITE, MAP_SHARED, fd, 0);
+                       if (ptest_data == MAP_FAILED)
+                       {
+                               perror("PARENT - mmap:");
+                               if (shm_unlink(shared_name) == -1) {
+                                       perror("PARENT - shm_unlink:");
+                               }
+                               return 0;
+                       }
+                       for (i=0; i <sizeof(test_data); i++)
+                               ptest_data[i] = test_data[i];
+
+                       /* signal child */
+                       write(pfds[1], "rdy", 5);
+                       /* wait for child */
+                       wait(&rv);
+
+                       /* Cleanup */
+                       munmap(ptest_data, sizeof(test_data));
+                       if (shm_unlink(shared_name) == -1) {
+                               perror("PARENT - shm_unlink:");
+                       }
+               }
+       }
+       return 0;
+}