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/* SPDX-License-Identifier: GPL-3.0-or-later */
#include "unsquashfs.h"
#include <sys/sysmacros.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;
}
static void print_size(uint64_t 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(tree_node_t *n, char *buffer)
{
switch (n->mode & S_IFMT) {
case S_IFLNK:
print_size(strlen(n->data.slink_target), buffer);
break;
case S_IFREG:
print_size(n->data.file->size, buffer);
break;
case S_IFDIR:
print_size(n->data.dir->size, buffer);
break;
case S_IFBLK:
case S_IFCHR:
sprintf(buffer, "%u:%u", major(n->data.devno),
minor(n->data.devno));
break;
default:
buffer[0] = '0';
buffer[1] = '\0';
break;
}
}
void list_files(tree_node_t *node)
{
int i, max_uid_chars = 0, max_gid_chars = 0, max_sz_chars = 0;
char modestr[12], sizestr[32];
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;
print_node_size(n, sizestr);
i = strlen(sizestr);
max_sz_chars = i > max_sz_chars ? i : max_sz_chars;
}
for (n = node->data.dir->children; n != NULL; n = n->next) {
mode_to_str(n->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->mode)) {
printf(" -> %s\n", n->data.slink_target);
} else {
fputc('\n', stdout);
}
}
} else {
mode_to_str(node->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->mode)) {
printf(" -> %s\n", node->data.slink_target);
} else {
fputc('\n', stdout);
}
}
}
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