Btrfs-progs: rearrange files in the repo

Separate every command group into its own file (cmds_<group>.c) and
rearrange includes.  Remove btrfs_cmds.c.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

1 files changed, 223 insertions, 0 deletions

diff --git a/cmds-device.c b/cmds-device.c
new file mode 100644
index 00000000..0fc4c7fa
--- /dev/null
+++ b/cmds-device.c
@@ -0,0 +1,223 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+#include "kerncompat.h"
+#include "ctree.h"
+#include "ioctl.h"
+#include "utils.h"
+
+#include "btrfs_cmds.h"
+
+/* FIXME - imported cruft, fix sparse errors and warnings */
+#ifdef __CHECKER__
+#define BLKGETSIZE64 0
+#define BTRFS_IOC_SNAP_CREATE_V2 0
+#define BTRFS_VOL_NAME_MAX 255
+struct btrfs_ioctl_vol_args { char name[BTRFS_VOL_NAME_MAX]; };
+static inline int ioctl(int fd, int define, void *arg) { return 0; }
+#endif
+
+int do_add_volume(int nargs, char **args)
+{
+
+	char	*mntpnt = args[nargs-1];
+	int	i, fdmnt, ret=0, e;
+
+
+	fdmnt = open_file_or_dir(mntpnt);
+	if (fdmnt < 0) {
+		fprintf(stderr, "ERROR: can't access to '%s'\n", mntpnt);
+		return 12;
+	}
+
+	for (i = 1; i < (nargs-1); i++ ){
+		struct btrfs_ioctl_vol_args ioctl_args;
+		int	devfd, res;
+		u64 dev_block_count = 0;
+		struct stat st;
+		int mixed = 0;
+
+		res = check_mounted(args[i]);
+		if (res < 0) {
+			fprintf(stderr, "error checking %s mount status\n",
+				args[i]);
+			ret++;
+			continue;
+		}
+		if (res == 1) {
+			fprintf(stderr, "%s is mounted\n", args[i]);
+			ret++;
+			continue;
+		}
+
+		devfd = open(args[i], O_RDWR);
+		if (!devfd) {
+			fprintf(stderr, "ERROR: Unable to open device '%s'\n", args[i]);
+			close(devfd);
+			ret++;
+			continue;
+		}
+		res = fstat(devfd, &st);
+		if (res) {
+			fprintf(stderr, "ERROR: Unable to stat '%s'\n", args[i]);
+			close(devfd);
+			ret++;
+			continue;
+		}
+		if (!S_ISBLK(st.st_mode)) {
+			fprintf(stderr, "ERROR: '%s' is not a block device\n", args[i]);
+			close(devfd);
+			ret++;
+			continue;
+		}
+
+		res = btrfs_prepare_device(devfd, args[i], 1, &dev_block_count, &mixed);
+		if (res) {
+			fprintf(stderr, "ERROR: Unable to init '%s'\n", args[i]);
+			close(devfd);
+			ret++;
+			continue;
+		}
+		close(devfd);
+
+		strncpy(ioctl_args.name, args[i], BTRFS_PATH_NAME_MAX);
+		res = ioctl(fdmnt, BTRFS_IOC_ADD_DEV, &ioctl_args);
+		e = errno;
+		if(res<0){
+			fprintf(stderr, "ERROR: error adding the device '%s' - %s\n", 
+				args[i], strerror(e));
+			ret++;
+		}
+
+	}
+
+	close(fdmnt);
+	if (ret)
+		return ret+20;
+	else
+		return 0;
+
+}
+
+int do_remove_volume(int nargs, char **args)
+{
+
+	char	*mntpnt = args[nargs-1];
+	int	i, fdmnt, ret=0, e;
+
+	fdmnt = open_file_or_dir(mntpnt);
+	if (fdmnt < 0) {
+		fprintf(stderr, "ERROR: can't access to '%s'\n", mntpnt);
+		return 12;
+	}
+
+	for(i=1 ; i < (nargs-1) ; i++ ){
+		struct	btrfs_ioctl_vol_args arg;
+		int	res;
+
+		strncpy(arg.name, args[i], BTRFS_PATH_NAME_MAX);
+		res = ioctl(fdmnt, BTRFS_IOC_RM_DEV, &arg);
+		e = errno;
+		if(res<0){
+			fprintf(stderr, "ERROR: error removing the device '%s' - %s\n", 
+				args[i], strerror(e));
+			ret++;
+		}
+	}
+
+	close(fdmnt);
+	if( ret)
+		return ret+20;
+	else
+		return 0;
+}
+
+int do_scan(int argc, char **argv)
+{
+	int	i, fd, e;
+	int	checklist = 1;
+	int	devstart = 1;
+
+	if( argc >= 2 && !strcmp(argv[1],"--all-devices")){
+
+		if( argc >2 ){
+			fprintf(stderr, "ERROR: too may arguments\n");
+                        return 22;
+                }
+
+		checklist = 0;
+		devstart += 1;
+	}
+
+	if(argc<=devstart){
+
+		int ret;
+
+		printf("Scanning for Btrfs filesystems\n");
+		if(checklist)
+			ret = btrfs_scan_block_devices(1);
+		else
+			ret = btrfs_scan_one_dir("/dev", 1);
+		if (ret){
+			fprintf(stderr, "ERROR: error %d while scanning\n", ret);
+			return 18;
+		}
+		return 0;
+	}
+
+	fd = open("/dev/btrfs-control", O_RDWR);
+	if (fd < 0) {
+		perror("failed to open /dev/btrfs-control");
+		return 10;
+	}
+
+	for( i = devstart ; i < argc ; i++ ){
+		struct btrfs_ioctl_vol_args args;
+		int ret;
+
+		printf("Scanning for Btrfs filesystems in '%s'\n", argv[i]);
+
+		strncpy(args.name, argv[i], BTRFS_PATH_NAME_MAX);
+		/*
+		 * FIXME: which are the error code returned by this ioctl ?
+		 * it seems that is impossible to understand if there no is
+		 * a btrfs filesystem from an I/O error !!!
+		 */
+		ret = ioctl(fd, BTRFS_IOC_SCAN_DEV, &args);
+		e = errno;
+
+		if( ret < 0 ){
+			close(fd);
+			fprintf(stderr, "ERROR: unable to scan the device '%s' - %s\n", 
+				argv[i], strerror(e));
+			return 11;
+		}
+	}
+
+	close(fd);
+	return 0;
+
+}
+