storage: s/MAXPATHLEN/PATH_MAX/g

src/lxc/storage/btrfs.c

@@ -462,7 +462,7 @@ bool btrfs_create_clone(struct lxc_conf *conf, struct lxc_storage *orig,
 {
 	int ret;
 	struct rsync_data data = {0, 0};
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 
 	ret = rmdir(new->dest);
 	if (ret < 0 && errno != ENOENT)

src/lxc/storage/loop.c

@@ -237,7 +237,7 @@ bool loop_detect(const char *path)
 int loop_mount(struct lxc_storage *bdev)
 {
 	int ret, loopfd;
-	char loname[MAXPATHLEN];
+	char loname[PATH_MAX];
 	const char *src;
 
 	if (strcmp(bdev->type, "loop"))
@@ -301,7 +301,7 @@ static int do_loop_create(const char *path, uint64_t size, const char *fstype)
 {
 	int fd, ret;
 	off_t ret_size;
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 	const char *cmd_args[2] = {fstype, path};
 
 	/* create the new loopback file */

src/lxc/storage/lvm.c

@@ -111,7 +111,7 @@ static int do_lvm_create(const char *path, uint64_t size, const char *thinpool)
 {
 	int len, ret;
 	char *pathdup, *vg, *lv;
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 	char sz[24];
 	char *tp = NULL;
 	struct lvcreate_args cmd_args = {0};
@@ -201,7 +201,7 @@ bool lvm_detect(const char *path)
 	int fd;
 	ssize_t ret;
 	struct stat statbuf;
-	char devp[MAXPATHLEN], buf[4];
+	char devp[PATH_MAX], buf[4];
 
 	if (!strncmp(path, "lvm:", 4))
 		return true;
@@ -213,9 +213,9 @@ bool lvm_detect(const char *path)
 	if (!S_ISBLK(statbuf.st_mode))
 		return false;
 
-	ret = snprintf(devp, MAXPATHLEN, "/sys/dev/block/%d:%d/dm/uuid",
+	ret = snprintf(devp, PATH_MAX, "/sys/dev/block/%d:%d/dm/uuid",
 		       major(statbuf.st_rdev), minor(statbuf.st_rdev));
-	if (ret < 0 || ret >= MAXPATHLEN) {
+	if (ret < 0 || ret >= PATH_MAX) {
 		ERROR("Failed to create string");
 		return false;
 	}
@@ -335,7 +335,7 @@ static int lvm_snapshot(struct lxc_storage *orig, const char *path, uint64_t siz
 	char *lv, *pathdup;
 	char sz[24];
 	char fstype[100];
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 	char repairchar;
 	const char *origsrc;
 	struct lvcreate_args cmd_args = {0};
@@ -506,7 +506,7 @@ bool lvm_create_clone(struct lxc_conf *conf, struct lxc_storage *orig,
 	const char *thinpool;
 	struct rsync_data data;
 	const char *cmd_args[2];
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 	char fstype[100] = "ext4";
 	uint64_t size = newsize;
 
@@ -593,7 +593,7 @@ bool lvm_create_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
 int lvm_destroy(struct lxc_storage *orig)
 {
 	int ret;
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 	struct lvcreate_args cmd_args = {0};
 
 	cmd_args.lv = lxc_storage_get_path(orig->src, "lvm");
@@ -616,7 +616,7 @@ int lvm_create(struct lxc_storage *bdev, const char *dest, const char *n,
 	uint64_t sz;
 	int ret, len;
 	const char *cmd_args[2];
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 
 	if (!specs)
 		return -1;

src/lxc/storage/overlay.c

@@ -737,7 +737,7 @@ char *ovl_get_rootfs(const char *rootfs_path, size_t *rootfslen)
 int ovl_mkdir(const struct mntent *mntent, const struct lxc_rootfs *rootfs,
 	      const char *lxc_name, const char *lxc_path)
 {
-	char lxcpath[MAXPATHLEN];
+	char lxcpath[PATH_MAX];
 	char **opts;
 	int ret;
 	size_t arrlen, i, len, rootfslen;
@@ -766,8 +766,8 @@ int ovl_mkdir(const struct mntent *mntent, const struct lxc_rootfs *rootfs,
 	}
 
 	if (rootfs_path) {
-		ret = snprintf(lxcpath, MAXPATHLEN, "%s/%s", lxc_path, lxc_name);
-		if (ret < 0 || ret >= MAXPATHLEN)
+		ret = snprintf(lxcpath, PATH_MAX, "%s/%s", lxc_path, lxc_name);
+		if (ret < 0 || ret >= PATH_MAX)
 			goto err;
 
 		rootfs_dir = ovl_get_rootfs(rootfs_path, &rootfslen);
@@ -825,8 +825,8 @@ int ovl_update_abs_paths(struct lxc_conf *lxc_conf, const char *lxc_path,
 			 const char *lxc_name, const char *newpath,
 			 const char *newname)
 {
-	char new_upper[MAXPATHLEN], new_work[MAXPATHLEN], old_upper[MAXPATHLEN],
-	    old_work[MAXPATHLEN];
+	char new_upper[PATH_MAX], new_work[PATH_MAX], old_upper[PATH_MAX],
+	    old_work[PATH_MAX];
 	size_t i;
 	struct lxc_list *iterator;
 	char *cleanpath = NULL;
@@ -852,13 +852,13 @@ int ovl_update_abs_paths(struct lxc_conf *lxc_conf, const char *lxc_path,
 	}
 
 	ret =
-	    snprintf(old_work, MAXPATHLEN, "workdir=%s/%s", lxc_path, lxc_name);
-	if (ret < 0 || ret >= MAXPATHLEN)
+	    snprintf(old_work, PATH_MAX, "workdir=%s/%s", lxc_path, lxc_name);
+	if (ret < 0 || ret >= PATH_MAX)
 		goto err;
 
 	ret =
-	    snprintf(new_work, MAXPATHLEN, "workdir=%s/%s", cleanpath, newname);
-	if (ret < 0 || ret >= MAXPATHLEN)
+	    snprintf(new_work, PATH_MAX, "workdir=%s/%s", cleanpath, newname);
+	if (ret < 0 || ret >= PATH_MAX)
 		goto err;
 
 	lxc_list_for_each(iterator, &lxc_conf->mount_list) {
@@ -872,14 +872,14 @@ int ovl_update_abs_paths(struct lxc_conf *lxc_conf, const char *lxc_path,
 		if (!tmp)
 			continue;
 
-		ret = snprintf(old_upper, MAXPATHLEN, "%s=%s/%s", tmp, lxc_path,
+		ret = snprintf(old_upper, PATH_MAX, "%s=%s/%s", tmp, lxc_path,
 			       lxc_name);
-		if (ret < 0 || ret >= MAXPATHLEN)
+		if (ret < 0 || ret >= PATH_MAX)
 			goto err;
 
-		ret = snprintf(new_upper, MAXPATHLEN, "%s=%s/%s", tmp,
+		ret = snprintf(new_upper, PATH_MAX, "%s=%s/%s", tmp,
 			       cleanpath, newname);
-		if (ret < 0 || ret >= MAXPATHLEN)
+		if (ret < 0 || ret >= PATH_MAX)
 			goto err;
 
 		if (strstr(mnt_entry, old_upper)) {
@@ -956,7 +956,7 @@ static int ovl_do_rsync(const char *src, const char *dest,
 {
 	int ret = -1;
 	struct rsync_data_char rdata = {0};
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 
 	rdata.src = (char *)src;
 	rdata.dest = (char *)dest;

src/lxc/storage/rbd.c

@@ -104,7 +104,7 @@ int rbd_create(struct lxc_storage *bdev, const char *dest, const char *n,
 	int ret, len;
 	char sz[24];
 	const char *cmd_args[2];
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 	const char *rbdname = n;
 	struct rbd_args args = {0};
 
@@ -198,7 +198,7 @@ int rbd_destroy(struct lxc_storage *orig)
 	int ret;
 	const char *src;
 	char *rbdfullname;
-	char cmd_output[MAXPATHLEN];
+	char cmd_output[PATH_MAX];
 	struct rbd_args args = {0};
 	size_t len;
 

src/lxc/storage/storage.c

@@ -331,7 +331,7 @@ struct lxc_storage *storage_copy(struct lxc_container *c, const char *cname,
 	const char *src = c->lxc_conf->rootfs.path;
 	const char *oldname = c->name;
 	const char *oldpath = c->config_path;
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 	struct rsync_data data = {0};
 
 	if (!src) {

src/lxc/storage/storage_utils.c

@@ -186,7 +186,7 @@ int detect_fs(struct lxc_storage *bdev, char *type, int len)
 	FILE *f;
 	char *sp1, *sp2, *sp3;
 	const char *l, *srcdev;
-	char devpath[MAXPATHLEN];
+	char devpath[PATH_MAX];
 	char *line = NULL;
 
 	if (!bdev || !bdev->src || !bdev->dest)
@@ -415,11 +415,11 @@ const char *linkderef(const char *path, char *dest)
 	if (!S_ISLNK(sbuf.st_mode))
 		return path;
 
-	ret = readlink(path, dest, MAXPATHLEN);
+	ret = readlink(path, dest, PATH_MAX);
 	if (ret < 0) {
 		SYSERROR("error reading link %s", path);
 		return NULL;
-	} else if (ret >= MAXPATHLEN) {
+	} else if (ret >= PATH_MAX) {
 		ERROR("link in %s too long", path);
 		return NULL;
 	}

src/lxc/storage/zfs.c

@@ -134,7 +134,7 @@ bool zfs_detect(const char *path)
 	int ret;
 	char *dataset;
 	struct zfs_args cmd_args = {0};
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 
 	if (!strncmp(path, "zfs:", 4))
 		return true;
@@ -185,7 +185,7 @@ int zfs_mount(struct lxc_storage *bdev)
 	char *mntdata, *tmp;
 	const char *src;
 	unsigned long mntflags;
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 
 	if (strcmp(bdev->type, "zfs"))
 		return -22;
@@ -287,7 +287,7 @@ bool zfs_copy(struct lxc_conf *conf, struct lxc_storage *orig,
 	      struct lxc_storage *new, uint64_t newsize)
 {
 	int ret;
-	char cmd_output[MAXPATHLEN], option[MAXPATHLEN];
+	char cmd_output[PATH_MAX], option[PATH_MAX];
 	struct rsync_data data = {0, 0};
 	struct zfs_args cmd_args = {0};
 	const char *argv[] = {"zfs",			   /* 0    */
@@ -299,8 +299,8 @@ bool zfs_copy(struct lxc_conf *conf, struct lxc_storage *orig,
 			      NULL};
 
 	/* mountpoint */
-	ret = snprintf(option, MAXPATHLEN, "mountpoint=%s", new->dest);
-	if (ret < 0 || ret >= MAXPATHLEN) {
+	ret = snprintf(option, PATH_MAX, "mountpoint=%s", new->dest);
+	if (ret < 0 || ret >= PATH_MAX) {
 		ERROR("Failed to create string");
 		return false;
 	}
@@ -348,7 +348,7 @@ bool zfs_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
 	char *tmp, *snap_name, *snapshot;
 	const char *orig_src;
 	struct zfs_args cmd_args = {0};
-	char cmd_output[MAXPATHLEN] = {0}, option[MAXPATHLEN];
+	char cmd_output[PATH_MAX] = {0}, option[PATH_MAX];
 
 	orig_src = lxc_storage_get_path(orig->src, orig->type);
 	if (*orig_src == '/') {
@@ -423,8 +423,8 @@ bool zfs_snapshot(struct lxc_conf *conf, struct lxc_storage *orig,
 		TRACE("Created zfs snapshot \"%s\"", snapshot);
 	}
 
-	ret = snprintf(option, MAXPATHLEN, "mountpoint=%s", new->dest);
-	if (ret < 0 || ret >= MAXPATHLEN) {
+	ret = snprintf(option, PATH_MAX, "mountpoint=%s", new->dest);
+	if (ret < 0 || ret >= PATH_MAX) {
 		ERROR("Failed to create string");
 		free(snapshot);
 		return -1;
@@ -455,7 +455,7 @@ int zfs_clonepaths(struct lxc_storage *orig, struct lxc_storage *new,
 	char *dataset, *tmp;
 	const char *orig_src;
 	size_t dataset_len, len;
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 
 	if (!orig->src || !orig->dest)
 		return -1;
@@ -586,7 +586,7 @@ int zfs_destroy(struct lxc_storage *orig)
 	bool found;
 	char *parent_snapshot = NULL;
 	struct zfs_args cmd_args = {0};
-	char cmd_output[MAXPATHLEN] = {0};
+	char cmd_output[PATH_MAX] = {0};
 
 	src = lxc_storage_get_path(orig->src, orig->type);
 
@@ -714,7 +714,7 @@ int zfs_create(struct lxc_storage *bdev, const char *dest, const char *n,
 	int ret;
 	size_t len;
 	struct zfs_args cmd_args = {0};
-	char cmd_output[MAXPATHLEN], option[MAXPATHLEN];
+	char cmd_output[PATH_MAX], option[PATH_MAX];
 	const char *argv[] = {"zfs",			   /* 0    */
 			      "create",			   /* 1    */
 			      "-o",     "",		   /* 2, 3 */
@@ -750,8 +750,8 @@ int zfs_create(struct lxc_storage *bdev, const char *dest, const char *n,
 	}
 	argv[7] = lxc_storage_get_path(bdev->src, bdev->type);
 
-	ret = snprintf(option, MAXPATHLEN, "mountpoint=%s", bdev->dest);
-	if (ret < 0 || ret >= MAXPATHLEN) {
+	ret = snprintf(option, PATH_MAX, "mountpoint=%s", bdev->dest);
+	if (ret < 0 || ret >= PATH_MAX) {
 		ERROR("Failed to create string");
 		return -1;
 	}