#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
+
#define TEST_MINOR 120
#define TEST_MAJOR 25
exit(1);
}
+/*
+ * this stuff inlined here instead of using appropriate header
+ * to avoid linking to symbols which is not present in newer libc.
+ * Currently this is the case, as UML image contains RedHat 9 and
+ * developers use something newer (Fedora, etc.) --umka
+ */
+inline unsigned int
+__gnu_dev_major (unsigned long long int __dev)
+{
+ return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
+}
+
+inline unsigned int
+__gnu_dev_minor (unsigned long long int __dev)
+{
+ return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
+}
+
+inline unsigned long long int
+__gnu_dev_makedev (unsigned int __major, unsigned int __minor)
+{
+ return ((__minor & 0xff) | ((__major & 0xfff) << 8)
+ | (((unsigned long long int) (__minor & ~0xff)) << 12)
+ | (((unsigned long long int) (__major & ~0xfff)) << 32));
+}
+
+#define __minor(dev) __gnu_dev_minor(dev)
+#define __major(dev) __gnu_dev_major(dev)
+#define __makedev(maj, min) __gnu_dev_makedev(maj, min)
+
int main( int argc, char **argv)
{
char *prog = argv[0];
char *filename = argv[1];
- int rc;
+
struct stat st;
- dev_t device = makedev(TEST_MAJOR, TEST_MINOR);
+ int rq_rdev;
+ int rc;
if (argc != 2)
usage(prog);
unlink(filename);
- /* First try block devices */
- rc = mknod(filename, 0700 | S_IFBLK, device);
- if ( rc < 0 ) {
+
+ /* first try block devices */
+ rq_rdev = __makedev(TEST_MAJOR, TEST_MINOR);
+ rc = mknod(filename, 0700 | S_IFBLK, rq_rdev);
+ if (rc < 0) {
fprintf(stderr, "%s: mknod(%s) failed: rc %d: %s\n",
prog, filename, errno, strerror(errno));
return 2;
}
rc = stat(filename, &st);
- if ( rc < 0 ) {
+ if (rc < 0) {
fprintf(stderr, "%s: stat(%s) failed: rc %d: %s\n",
prog, filename, errno, strerror(errno));
return 3;
}
- if ( st.st_rdev != device) {
- fprintf(stderr, "%s: created device other than requested: (%d,%d) instead of (%d,%d)\n", prog, major(st.st_rdev),minor(st.st_rdev),major(device),minor(device));
+
+ if (st.st_rdev != rq_rdev) {
+ fprintf(stderr, "%s: created device other than requested: (%u,%u) instead of (%u,%u)\n",
+ prog, __major(st.st_rdev),__minor(st.st_rdev),__major(rq_rdev),__minor(rq_rdev));
return 4;
}
- if ( ! (st.st_mode | S_IFBLK) ) {
+ if (!S_ISBLK(st.st_mode)) {
fprintf(stderr, "%s: created device of different type. Requested block device, got mode %o\n", prog, st.st_mode);
return 5;
}
}
/* Second try char devices */
- rc = mknod(filename, 0700 | S_IFCHR, device);
+ rc = mknod(filename, 0700 | S_IFCHR, rq_rdev);
if ( rc < 0 ) {
fprintf(stderr, "%s: mknod(%s) failed: rc %d: %s\n",
prog, filename, errno, strerror(errno));
prog, filename, errno, strerror(errno));
return 8;
}
- if ( st.st_rdev != device) {
- fprintf(stderr, "%s: created device other than requested: (%d,%d) instead of (%d,%d)\n", prog, major(st.st_rdev),minor(st.st_rdev),major(device),minor(device));
+ if (st.st_rdev != rq_rdev) {
+ fprintf(stderr, "%s: created device other than requested: (%u,%u) instead of (%u,%u)\n",
+ prog, __major(st.st_rdev),__minor(st.st_rdev),__major(rq_rdev),__minor(rq_rdev));
return 9;
}
- if ( ! (st.st_mode | S_IFCHR) ) {
+ if (!S_ISCHR(st.st_mode)) {
fprintf(stderr, "%s: created device of different type. Requested char device, got mode %o\n", prog, st.st_mode);
return 10;
}