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tree(): Refactor, flatten tree

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2017-07-02 16:32:04 +02:00
parent 441d5f58d7
commit 32c774deef
1 changed files with 38 additions and 40 deletions
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tree.c
+38 -40
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@@ -59,56 +59,54 @@ static void get_perms(struct stat *st, char *buf, size_t len)
static int descend(char *path, int show_perms, char *pfx)
{
int result = 0;
int i, n, result = 0;
struct stat st;
struct dirent **namelist = NULL;
if (-1 == lstat(path, &st))
return 1;
if ((st.st_mode & S_IFMT) == S_IFDIR) {
int i, n;
struct dirent **namelist = NULL;
if ((st.st_mode & S_IFMT) != S_IFDIR) {
errno = ENOTDIR;
return -1;
}
n = scandir(path, &namelist, filter, alphasort);
if (n) {
for (i = 0; i < n; i++) {
char t = ' ', p[14] = "", s[256] = "";
char buf[256];
char dir[80];
n = scandir(path, &namelist, filter, alphasort);
if (n) {
for (i = 0; i < n; i++) {
char t = ' ', p[14] = "", s[256] = "";
char buf[256];
char dir[80];
if (i + 1 == n) {
printf("%s `- ", pfx);
snprintf(dir, sizeof(dir), "%s ", pfx);
} else {
printf("%s|-- ", pfx);
snprintf(dir, sizeof(dir), "%s| ", pfx);
}
snprintf(buf, sizeof(buf), "%s/%s", path, namelist[i]->d_name);
if (!lstat(buf, &st)) {
if (show_perms)
get_perms(&st, p, sizeof(p));
if ((st.st_mode & S_IFMT) == S_IFDIR)
t = '/';
if (S_ISLNK(st.st_mode)) {
snprintf(s, sizeof(s), "-> ");
if (-1 == readlink(buf, &s[3], sizeof(s) - 3))
s[0] = 0;
}
}
printf("%s%s%c%s\n", p, namelist[i]->d_name, t, s);
if (t == '/')
result += descend(buf, show_perms, dir);
free(namelist[i]);
if (i + 1 == n) {
printf("%s `- ", pfx);
snprintf(dir, sizeof(dir), "%s ", pfx);
} else {
printf("%s|-- ", pfx);
snprintf(dir, sizeof(dir), "%s| ", pfx);
}
free(namelist);
snprintf(buf, sizeof(buf), "%s/%s", path, namelist[i]->d_name);
if (!lstat(buf, &st)) {
if (show_perms)
get_perms(&st, p, sizeof(p));
if ((st.st_mode & S_IFMT) == S_IFDIR)
t = '/';
if (S_ISLNK(st.st_mode)) {
snprintf(s, sizeof(s), "-> ");
if (-1 == readlink(buf, &s[3], sizeof(s) - 3))
s[0] = 0;
}
}
printf("%s%s%c%s\n", p, namelist[i]->d_name, t, s);
if (t == '/')
result += descend(buf, show_perms, dir);
free(namelist[i]);
}
} else {
errno = ENOTDIR;
result = -1;
free(namelist);
}
return result;