Fix uname problem that was breaking poweroff.

Changelog

@@ -1,3 +1,11 @@
+0.48
+
+	* Fixed uname problem causing the kernel version to be
+	    mis-detected (causing problems with poweroff, init,
+	    and other things).
+
+	 -Erik Andersen
+
 0.47
 
 	* A bug in syslogd was fixed that allowed it to potentially fork-bomb

mkswap.c

@@ -63,20 +63,6 @@ static int version = -1;
 
 #define MAKE_VERSION(p,q,r)	(65536*(p) + 256*(q) + (r))
 
-static int linux_version_code(void)
-{
-	struct utsname my_utsname;
-	int p, q, r;
-
-	if (uname(&my_utsname) == 0) {
-		p = atoi(strtok(my_utsname.release, "."));
-		q = atoi(strtok(NULL, "."));
-		r = atoi(strtok(NULL, "."));
-		return MAKE_VERSION(p, q, r);
-	}
-	return 0;
-}
-
 /*
  * The definition of the union swap_header uses the constant PAGE_SIZE.
  * Unfortunately, on some architectures this depends on the hardware model,
@@ -345,7 +331,7 @@ int mkswap_main(int argc, char **argv)
 	if (version == -1) {
 		if (PAGES <= V0_MAX_PAGES)
 			version = 0;
-		else if (linux_version_code() < MAKE_VERSION(2, 1, 117))
+		else if (get_kernel_revision() < MAKE_VERSION(2, 1, 117))
 			version = 0;
 		else if (pagesize < 2048)
 			version = 0;
@@ -366,7 +352,7 @@ int mkswap_main(int argc, char **argv)
 #else
 	if (!version)
 		maxpages = V0_MAX_PAGES;
-	else if (linux_version_code() >= MAKE_VERSION(2, 2, 1))
+	else if (get_kernel_revision() >= MAKE_VERSION(2, 2, 1))
 		maxpages = V1_MAX_PAGES;
 	else {
 		maxpages = V1_OLD_MAX_PAGES;

nfsmount.c

@@ -160,20 +160,6 @@ static char *nfs_strerror(int stat);
 #define EX_BG			256       /* retry in background (internal only) */
 
 
-static int
-linux_version_code(void) {
-	struct utsname my_utsname;
-	int p, q, r;
-
-	if (uname(&my_utsname) == 0) {
-		p = atoi(strtok(my_utsname.release, "."));
-		q = atoi(strtok(NULL, "."));
-		r = atoi(strtok(NULL, "."));
-		return MAKE_VERSION(p,q,r);
-	}
-	return 0;
-}
-
 /*
  * nfs_mount_version according to the sources seen at compile time.
  */
@@ -197,7 +183,7 @@ find_kernel_nfs_mount_version(void) {
 	if (kernel_version)
 		return;
 
-	kernel_version = linux_version_code();
+	kernel_version = get_kernel_revision();
 
 	if (kernel_version) {
 	     if (kernel_version < MAKE_VERSION(2,1,32))
@@ -796,7 +782,7 @@ int nfsmount(const char *spec, const char *node, int *flags,
 	  * to avoid problems with multihomed hosts.
 	  * --Swen
 	  */
-	if (linux_version_code() <= 66314
+	if (get_kernel_revision() <= 66314
 	    && connect(fsock, (struct sockaddr *) &server_addr,
 		       sizeof (server_addr)) < 0) {
 		perror(_("nfs connect"));

util-linux/mkswap.c

@@ -63,20 +63,6 @@ static int version = -1;
 
 #define MAKE_VERSION(p,q,r)	(65536*(p) + 256*(q) + (r))
 
-static int linux_version_code(void)
-{
-	struct utsname my_utsname;
-	int p, q, r;
-
-	if (uname(&my_utsname) == 0) {
-		p = atoi(strtok(my_utsname.release, "."));
-		q = atoi(strtok(NULL, "."));
-		r = atoi(strtok(NULL, "."));
-		return MAKE_VERSION(p, q, r);
-	}
-	return 0;
-}
-
 /*
  * The definition of the union swap_header uses the constant PAGE_SIZE.
  * Unfortunately, on some architectures this depends on the hardware model,
@@ -345,7 +331,7 @@ int mkswap_main(int argc, char **argv)
 	if (version == -1) {
 		if (PAGES <= V0_MAX_PAGES)
 			version = 0;
-		else if (linux_version_code() < MAKE_VERSION(2, 1, 117))
+		else if (get_kernel_revision() < MAKE_VERSION(2, 1, 117))
 			version = 0;
 		else if (pagesize < 2048)
 			version = 0;
@@ -366,7 +352,7 @@ int mkswap_main(int argc, char **argv)
 #else
 	if (!version)
 		maxpages = V0_MAX_PAGES;
-	else if (linux_version_code() >= MAKE_VERSION(2, 2, 1))
+	else if (get_kernel_revision() >= MAKE_VERSION(2, 2, 1))
 		maxpages = V1_MAX_PAGES;
 	else {
 		maxpages = V1_OLD_MAX_PAGES;

util-linux/nfsmount.c

@@ -160,20 +160,6 @@ static char *nfs_strerror(int stat);
 #define EX_BG			256       /* retry in background (internal only) */
 
 
-static int
-linux_version_code(void) {
-	struct utsname my_utsname;
-	int p, q, r;
-
-	if (uname(&my_utsname) == 0) {
-		p = atoi(strtok(my_utsname.release, "."));
-		q = atoi(strtok(NULL, "."));
-		r = atoi(strtok(NULL, "."));
-		return MAKE_VERSION(p,q,r);
-	}
-	return 0;
-}
-
 /*
  * nfs_mount_version according to the sources seen at compile time.
  */
@@ -197,7 +183,7 @@ find_kernel_nfs_mount_version(void) {
 	if (kernel_version)
 		return;
 
-	kernel_version = linux_version_code();
+	kernel_version = get_kernel_revision();
 
 	if (kernel_version) {
 	     if (kernel_version < MAKE_VERSION(2,1,32))
@@ -796,7 +782,7 @@ int nfsmount(const char *spec, const char *node, int *flags,
 	  * to avoid problems with multihomed hosts.
 	  * --Swen
 	  */
-	if (linux_version_code() <= 66314
+	if (get_kernel_revision() <= 66314
 	    && connect(fsock, (struct sockaddr *) &server_addr,
 		       sizeof (server_addr)) < 0) {
 		perror(_("nfs connect"));

utility.c

@@ -156,7 +156,9 @@ extern int get_kernel_revision(void)
 		perror("cannot get system information");
 		return (0);
 	}
-	sscanf(name.version, "%d.%d.%d", &major, &minor, &patch);
+	major = atoi(strtok(name.release, "."));
+	minor = atoi(strtok(NULL, "."));
+	patch = atoi(strtok(NULL, "."));
 	return major * 65536 + minor * 256 + patch;
 }
 #endif                                                 /* BB_INIT */