merge from the autoconf2 branch to the main branch

(This used to be commit 3bda7ac417107a7b01d91805ca71c4330657ed21)

6 files changed, 269 insertions, 0 deletions

diff --git a/source3/tests/README b/source3/tests/README
new file mode 100644
index 0000000000..cf1be8b00a
--- /dev/null
+++ b/source3/tests/README
@@ -0,0 +1,10 @@
+This directory contains autoconf test programs that are too large to
+comfortably fit in configure.in.
+
+These programs should test one feature of the OS and exit(0) if it
+works or exit(1) if it doesn't work (do _not_ use return)
+
+The programs should be kept simple and to the point. Beautiful/fast
+code is not necessary
+
+
diff --git a/source3/tests/fcntl_lock.c b/source3/tests/fcntl_lock.c
new file mode 100644
index 0000000000..c54479434e
--- /dev/null
+++ b/source3/tests/fcntl_lock.c
@@ -0,0 +1,78 @@
+/* test whether fcntl locking works on this system */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
+#ifdef HAVE_SYS_FCNTL_H
+#include <sys/fcntl.h>
+#endif
+
+#include <errno.h>
+
+static int sys_waitpid(pid_t pid,int *status,int options)
+{
+#ifdef HAVE_WAITPID
+  return waitpid(pid,status,options);
+#else /* USE_WAITPID */
+  return wait4(pid, status, options, NULL);
+#endif /* USE_WAITPID */
+}
+
+#define DATA "conftest.fcntl"
+
+#ifndef SEEK_SET
+#define SEEK_SET 0
+#endif
+
+/* lock a byte range in a open file */
+int main(int argc, char *argv[])
+{
+	struct flock lock;
+	int fd, pid, ret, status=1;
+
+	if (!(pid=fork())) {
+		sleep(2);
+		fd = open(DATA, O_RDONLY);
+
+		if (fd == -1) exit(1);
+
+		lock.l_type = F_WRLCK;
+		lock.l_whence = SEEK_SET;
+		lock.l_start = 0;
+		lock.l_len = 4;
+		lock.l_pid = getpid();
+		
+		lock.l_type = F_WRLCK;
+		
+		/* check if a lock applies */
+		ret = fcntl(fd,F_GETLK,&lock);
+
+		if ((ret == -1) ||
+		    (lock.l_type == F_UNLCK)) {
+			exit(1);
+		} else {
+			exit(0);
+		}
+	}
+
+	fd = open(DATA, O_RDWR|O_CREAT|O_TRUNC, 0600);
+
+	lock.l_type = F_WRLCK;
+	lock.l_whence = SEEK_SET;
+	lock.l_start = 0;
+	lock.l_len = 4;
+	lock.l_pid = getpid();
+
+	/* set a 4 byte write lock */
+	fcntl(fd,F_SETLK,&lock);
+
+	sys_waitpid(pid, &status, 0);
+
+	unlink(DATA);
+
+	exit(status);
+}
diff --git a/source3/tests/ftruncate.c b/source3/tests/ftruncate.c
new file mode 100644
index 0000000000..8d5e8942e3
--- /dev/null
+++ b/source3/tests/ftruncate.c
@@ -0,0 +1,24 @@
+/* test whether ftruncte() can extend a file */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define DATA "conftest.trunc"
+#define LEN 7663
+
+main()
+{
+	int *buf;
+	int fd = open(DATA,O_RDWR|O_CREAT|O_TRUNC,0666);
+
+	ftruncate(fd, LEN);
+
+	unlink(DATA);
+
+	if (lseek(fd, 0, SEEK_END) == LEN) {
+		exit(0);
+	}
+	exit(1);
+}
diff --git a/source3/tests/shared_mmap.c b/source3/tests/shared_mmap.c
new file mode 100644
index 0000000000..fb8a2a32d5
--- /dev/null
+++ b/source3/tests/shared_mmap.c
@@ -0,0 +1,66 @@
+/* this tests whether we can use a shared writeable mmap on a file -
+   as needed for the mmap varient of FAST_SHARE_MODES */
+
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define DATA "conftest.mmap"
+
+#ifndef MAP_FILE
+#define MAP_FILE 0
+#endif
+
+main()
+{
+	int *buf;
+	int i, pid;
+	int fd = open(DATA,O_RDWR|O_CREAT|O_TRUNC,0666);
+	int count=7;
+
+	if (fd == -1) exit(1);
+
+	for (i=0;i<10000;i++) {
+		write(fd,&i,sizeof(i));
+	}
+
+	close(fd);
+
+	if (fork() == 0) {
+		fd = open(DATA,O_RDWR);
+		if (fd == -1) exit(1);
+
+		buf = (int *)mmap(NULL, 10000*sizeof(int), 
+				   (PROT_READ | PROT_WRITE), 
+				   MAP_FILE | MAP_SHARED, 
+				   fd, 0);
+
+		while (count-- && buf[9124] != 55732) sleep(1);
+
+		if (count <= 0) exit(1);
+
+		buf[1763] = 7268;
+		exit(0);
+	}
+
+	fd = open(DATA,O_RDWR);
+	if (fd == -1) exit(1);
+
+	buf = (int *)mmap(NULL, 10000*sizeof(int), 
+			   (PROT_READ | PROT_WRITE), 
+			   MAP_FILE | MAP_SHARED, 
+			   fd, 0);
+
+	if (buf == (int *)-1) exit(1);
+
+	buf[9124] = 55732;
+
+	while (count-- && buf[1763] != 7268) sleep(1);
+
+	unlink(DATA);
+		
+	if (count > 0) exit(0);
+	exit(1);
+}
diff --git a/source3/tests/sysv_ipc.c b/source3/tests/sysv_ipc.c
new file mode 100644
index 0000000000..2374174e8f
--- /dev/null
+++ b/source3/tests/sysv_ipc.c
@@ -0,0 +1,66 @@
+/* this tests whether we can use a sysv shared memory segment
+   as needed for the sysv varient of FAST_SHARE_MODES */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+#define KEY 0x963796
+#define SIZE (32*1024)
+
+main()
+{
+	int id;
+	int *buf;
+	int count=7;
+
+#ifdef LINUX
+	if (sizeof(struct shmid_ds) == 52) {
+		printf("WARNING: You probably have a broken set of glibc2 include files - disabling sysv shared memory\n");
+		exit(1);
+	}
+#endif
+
+	id = shmget(KEY, 0, 0);
+	if (id != -1) {
+		if (shmctl(id, IPC_RMID, 0) != 0) exit(1);
+	}
+
+	if (fork() == 0) {
+		/* uggh - need locking */
+		sleep(2);
+
+		/* get an existing area */
+		id = shmget(KEY, 0, 0);
+		if (id == -1) exit(1);
+
+		buf = (int *)shmat(id, 0, 0);
+		if (buf == (int *)-1) exit(1);
+
+
+		while (count-- && buf[6124] != 55732) sleep(1);
+
+		if (count <= 0) exit(1);
+
+		buf[1763] = 7268;
+		exit(0);
+	}
+	
+	id = shmget(KEY, SIZE, IPC_CREAT | IPC_EXCL | 0600);
+	if (id == -1) exit(1);
+
+	buf = (int *)shmat(id, 0, 0);
+
+	if (buf == (int *)-1) exit(1);
+
+	buf[6124] = 55732;
+
+	while (count-- && buf[1763] != 7268) sleep(1);
+
+	shmctl(id, IPC_RMID, 0);
+
+	if (count <= 0) exit(1);
+	exit(0);
+}
diff --git a/source3/tests/trapdoor.c b/source3/tests/trapdoor.c
new file mode 100644
index 0000000000..83e10d0613
--- /dev/null
+++ b/source3/tests/trapdoor.c
@@ -0,0 +1,25 @@
+/* test for a trapdoor uid system */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+main()
+{
+	if (getuid() != 0) {
+		fprintf(stderr,"ERROR: This test must be run as root - assuming non-trapdoor system\n");
+		exit(0);
+	}
+
+	if (seteuid(1) != 0) exit(1);
+	if (geteuid() != 1) exit(1);
+	if (seteuid(0) != 0) exit(1);
+	if (geteuid() != 0) exit(1);
+
+	if (setegid(1) != 0) exit(1);
+	if (getegid() != 1) exit(1);
+	if (setegid(0) != 0) exit(1);
+	if (getegid() != 0) exit(1);
+
+	exit(0);
+}