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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2020-04-27 11:59:02 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2020-04-27 11:59:02 +0200
commit20b0d509f67dea802706cd6b80b5e20d14988931 (patch)
tree3a87ea358b1206f6823777693d109896d6908283 /bin/rdsquashfs/describe.c
parent9e332a2d3eddcc262476ac263e03df021b3c44b4 (diff)
Cleanup directory structure of the binary programs
Instead of having the binary programs in randomly named subdirectories, move all of them to a "bin" subdirectory, similar to the utility libraries that have subdirectories within "lib" and give the subdirectories the propper names (e.g. have gensquashfs source in a directory *actually* named "gensquashfs"). Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'bin/rdsquashfs/describe.c')
-rw-r--r--bin/rdsquashfs/describe.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/bin/rdsquashfs/describe.c b/bin/rdsquashfs/describe.c
new file mode 100644
index 0000000..d30f844
--- /dev/null
+++ b/bin/rdsquashfs/describe.c
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * describe.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "rdsquashfs.h"
+
+static int print_name(const sqfs_tree_node_t *n)
+{
+ char *start, *ptr, *name = sqfs_tree_node_get_path(n);
+ int ret;
+
+ if (name == NULL) {
+ perror("Recovering file path of tree node");
+ return -1;
+ }
+
+ ret = canonicalize_name(name);
+ assert(ret == 0);
+
+ if (strchr(name, ' ') == NULL && strchr(name, '"') == NULL) {
+ fputs(name, stdout);
+ } else {
+ fputc('"', stdout);
+
+ ptr = strchr(name, '"');
+
+ if (ptr != NULL) {
+ start = name;
+
+ do {
+ fwrite(start, 1, ptr - start, stdout);
+ fputs("\\\"", stdout);
+ start = ptr + 1;
+ ptr = strchr(start, '"');
+ } while (ptr != NULL);
+
+ fputs(start, stdout);
+ } else {
+ fputs(name, stdout);
+ }
+
+ fputc('"', stdout);
+ }
+
+ free(name);
+ return 0;
+}
+
+static void print_perm(const sqfs_tree_node_t *n)
+{
+ printf(" 0%o %d %d", n->inode->base.mode & (~S_IFMT), n->uid, n->gid);
+}
+
+static int print_simple(const char *type, const sqfs_tree_node_t *n,
+ const char *extra)
+{
+ printf("%s ", type);
+ if (print_name(n))
+ return -1;
+ print_perm(n);
+ if (extra != NULL)
+ printf(" %s", extra);
+ fputc('\n', stdout);
+ return 0;
+}
+
+int describe_tree(const sqfs_tree_node_t *root, const char *unpack_root)
+{
+ const sqfs_tree_node_t *n;
+
+ switch (root->inode->base.mode & S_IFMT) {
+ case S_IFSOCK:
+ return print_simple("sock", root, NULL);
+ case S_IFLNK:
+ return print_simple("slink", root,
+ (const char *)root->inode->extra);
+ case S_IFIFO:
+ return print_simple("pipe", root, NULL);
+ case S_IFREG:
+ if (unpack_root == NULL)
+ return print_simple("file", root, NULL);
+
+ fputs("file ", stdout);
+ if (print_name(root))
+ return -1;
+ print_perm(root);
+ printf(" %s/", unpack_root);
+ if (print_name(root))
+ return -1;
+ fputc('\n', stdout);
+ break;
+ case S_IFCHR:
+ case S_IFBLK: {
+ char buffer[32];
+ sqfs_u32 devno;
+
+ if (root->inode->base.type == SQFS_INODE_EXT_BDEV ||
+ root->inode->base.type == SQFS_INODE_EXT_CDEV) {
+ devno = root->inode->data.dev_ext.devno;
+ } else {
+ devno = root->inode->data.dev.devno;
+ }
+
+ sprintf(buffer, "%c %d %d",
+ S_ISCHR(root->inode->base.mode) ? 'c' : 'b',
+ major(devno), minor(devno));
+ return print_simple("nod", root, buffer);
+ }
+ case S_IFDIR:
+ if (root->name[0] != '\0') {
+ if (print_simple("dir", root, NULL))
+ return -1;
+ }
+
+ for (n = root->children; n != NULL; n = n->next) {
+ if (describe_tree(n, unpack_root))
+ return -1;
+ }
+ break;
+ }
+
+ return 0;
+}