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/*
* Copyright 2008-2013 Various Authors
* Copyright 2004 Timo Hirvonen
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "load_dir.h"
#include "xmalloc.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
int dir_open(struct directory *dir, const char *name)
{
int len = strlen(name);
if (len >= sizeof(dir->path) - 2) {
errno = ENAMETOOLONG;
return -1;
}
dir->d = opendir(name);
if (!dir->d)
return -1;
memcpy(dir->path, name, len);
dir->path[len++] = '/';
dir->path[len] = 0;
dir->len = len;
return 0;
}
void dir_close(struct directory *dir)
{
closedir(dir->d);
}
const char *dir_read(struct directory *dir)
{
DIR *d = dir->d;
int len = dir->len;
char *full = dir->path;
struct dirent *de;
#if defined(__CYGWIN__)
/* Fix for cygwin "hang" bug when browsing /
* Windows treats // as a network path.
*/
if (strcmp(full, "//") == 0)
full++;
#endif
while ((de = (struct dirent *) readdir(d))) {
const char *name = de->d_name;
int nlen = strlen(name);
/* just ignore too long paths
* + 2 -> space for \0 or / and \0
*/
if (len + nlen + 2 >= sizeof(dir->path))
continue;
memcpy(full + len, name, nlen + 1);
if (lstat(full, &dir->st))
continue;
dir->is_link = 0;
if (S_ISLNK(dir->st.st_mode)) {
/* argh. must stat the target */
if (stat(full, &dir->st))
continue;
dir->is_link = 1;
}
return full + len;
}
return NULL;
}
void ptr_array_add(struct ptr_array *array, void *ptr)
{
void **ptrs = array->ptrs;
int alloc = array->alloc;
if (alloc == array->count) {
alloc = alloc * 3 / 2 + 16;
ptrs = xrealloc(ptrs, alloc * sizeof(void *));
array->ptrs = ptrs;
array->alloc = alloc;
}
ptrs[array->count++] = ptr;
}
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