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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* list_files.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "rdsquashfs.h"
static void mode_to_str(sqfs_u16 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;
}
static void print_size(sqfs_u64 size, char *buffer)
{
static const char *suffices = "kMGTPEZY";
int suffix = -1;
while (size > 1024) {
++suffix;
size /= 1024;
}
if (suffix >= 0) {
sprintf(buffer, "%u%c", (unsigned int)size, suffices[suffix]);
} else {
sprintf(buffer, "%u", (unsigned int)size);
}
}
static void print_node_size(const sqfs_tree_node_t *n, char *buffer)
{
switch (n->inode->base.mode & S_IFMT) {
case S_IFLNK:
print_size(strlen(n->inode->slink_target), buffer);
break;
case S_IFREG: {
sqfs_u64 size;
sqfs_inode_get_file_size(n->inode, &size);
print_size(size, buffer);
break;
}
case S_IFDIR:
if (n->inode->base.type == SQFS_INODE_EXT_DIR) {
print_size(n->inode->data.dir_ext.size, buffer);
} else {
print_size(n->inode->data.dir.size, buffer);
}
break;
case S_IFBLK:
case S_IFCHR: {
sqfs_u32 devno;
if (n->inode->base.type == SQFS_INODE_EXT_BDEV ||
n->inode->base.type == SQFS_INODE_EXT_CDEV) {
devno = n->inode->data.dev_ext.devno;
} else {
devno = n->inode->data.dev.devno;
}
sprintf(buffer, "%u:%u", major(devno), minor(devno));
break;
}
default:
buffer[0] = '0';
buffer[1] = '\0';
break;
}
}
void list_files(const sqfs_tree_node_t *node)
{
int i, max_uid_chars = 0, max_gid_chars = 0, max_sz_chars = 0;
char modestr[12], sizestr[32];
const sqfs_tree_node_t *n;
if (S_ISDIR(node->inode->base.mode)) {
for (n = node->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;
print_node_size(n, sizestr);
i = strlen(sizestr);
max_sz_chars = i > max_sz_chars ? i : max_sz_chars;
}
for (n = node->children; n != NULL; n = n->next) {
mode_to_str(n->inode->base.mode, modestr);
print_node_size(n, sizestr);
printf("%s %*u/%-*u %*s %s", modestr,
max_uid_chars, n->uid,
max_gid_chars, n->gid,
max_sz_chars, sizestr,
n->name);
if (S_ISLNK(n->inode->base.mode)) {
printf(" -> %s\n", n->inode->slink_target);
} else {
fputc('\n', stdout);
}
}
} else {
mode_to_str(node->inode->base.mode, modestr);
print_node_size(node, sizestr);
printf("%s %u/%u %s %s", modestr,
node->uid, node->gid, sizestr, node->name);
if (S_ISLNK(node->inode->base.mode)) {
printf(" -> %s\n", node->inode->slink_target);
} else {
fputc('\n', stdout);
}
}
}
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