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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-05-02 16:30:33 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-05-03 21:45:46 +0200
commit2aa2f13131663afa0d13259365f824b05e9a2f02 (patch)
treeb5b8d7d1f46717d5b49278ec300f769e68641fd6 /unpack/list_files.c
parent03916fcbb453684fa13135e2b46f5a82d13d78a7 (diff)
unsquashfs: add argument processing, file listing parameter
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'unpack/list_files.c')
-rw-r--r--unpack/list_files.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/unpack/list_files.c b/unpack/list_files.c
new file mode 100644
index 0000000..aaf0652
--- /dev/null
+++ b/unpack/list_files.c
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+#include "unsquashfs.h"
+
+static void mode_to_str(uint16_t mode, char *p)
+{
+ switch (mode & S_IFMT) {
+ case S_IFDIR: *(p++) = 'd'; break;
+ case S_IFCHR: *(p++) = 'c'; break;
+ case S_IFBLK: *(p++) = 'b'; break;
+ case S_IFREG: *(p++) = '-'; break;
+ case S_IFLNK: *(p++) = 'l'; break;
+ case S_IFSOCK: *(p++) = 's'; break;
+ case S_IFIFO: *(p++) = 'p'; break;
+ default: *(p++) = '?'; break;
+ }
+
+ *(p++) = (mode & S_IRUSR) ? 'r' : '-';
+ *(p++) = (mode & S_IWUSR) ? 'w' : '-';
+
+ switch (mode & (S_IXUSR | S_ISUID)) {
+ case S_IXUSR | S_ISUID: *(p++) = 's'; break;
+ case S_IXUSR: *(p++) = 'x'; break;
+ case S_ISUID: *(p++) = 'S'; break;
+ default: *(p++) = '-'; break;
+ }
+
+ *(p++) = (mode & S_IRGRP) ? 'r' : '-';
+ *(p++) = (mode & S_IWGRP) ? 'w' : '-';
+
+ switch (mode & (S_IXGRP | S_ISGID)) {
+ case S_IXGRP | S_ISGID: *(p++) = 's'; break;
+ case S_IXGRP: *(p++) = 'x'; break;
+ case S_ISGID: *(p++) = 'S'; break;
+ case 0: *(p++) = '-'; break;
+ }
+
+ *(p++) = (mode & S_IROTH) ? 'r' : '-';
+ *(p++) = (mode & S_IWOTH) ? 'w' : '-';
+
+ switch (mode & (S_IXOTH | S_ISVTX)) {
+ case S_IXOTH | S_ISVTX: *(p++) = 't'; break;
+ case S_IXOTH: *(p++) = 'x'; break;
+ case S_ISVTX: *(p++) = 'T'; break;
+ case 0: *(p++) = '-'; break;
+ }
+
+ *p = '\0';
+}
+
+static int count_int_chars(unsigned int i)
+{
+ int count = 1;
+
+ while (i > 10) {
+ ++count;
+ i /= 10;
+ }
+
+ return count;
+}
+
+void list_files(tree_node_t *node)
+{
+ int i, max_uid_chars = 0, max_gid_chars = 0;
+ char modestr[12];
+ tree_node_t *n;
+
+ if (S_ISDIR(node->mode)) {
+ for (n = node->data.dir->children; n != NULL; n = n->next) {
+ i = count_int_chars(n->uid);
+ max_uid_chars = i > max_uid_chars ? i : max_uid_chars;
+
+ i = count_int_chars(n->gid);
+ max_gid_chars = i > max_gid_chars ? i : max_gid_chars;
+ }
+
+ for (n = node->data.dir->children; n != NULL; n = n->next) {
+ mode_to_str(n->mode, modestr);
+
+ printf("%s %*u/%-*u %s\n", modestr,
+ max_uid_chars, n->uid,
+ max_gid_chars, n->gid, n->name);
+ }
+ } else {
+ mode_to_str(node->mode, modestr);
+
+ printf("%s %u/%u %s\n", modestr,
+ node->uid, node->gid, node->name);
+ }
+}