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/*
* AUTHOR
* N. Nielsen
*
* LICENSE
* This software is in the public domain.
*
* The software is provided "as is", without warranty of any kind,
* express or implied, including but not limited to the warranties
* of merchantability, fitness for a particular purpose, and
* noninfringement. In no event shall the author(s) be liable for any
* claim, damages, or other liability, whether in an action of
* contract, tort, or otherwise, arising from, out of, or in connection
* with the software or the use or other dealings in the software.
*
* SUPPORT
* Send bug reports to: <nielsen@memberwebs.com>
*/
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "common/compat.h"
#include "file.h"
#if HAVE_UNISTD_H && HAVE_DIRENT_H
int is_dots(struct dirent* entry)
{
return entry->d_name &&
(!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, ".."));
}
int dir_next(DIR* handle, const char* wildcard, struct dirent* entry)
{
struct dirent* ent = 0;
#ifndef HAVE_FNMATCH
if(wildcard != NULL)
{
errno = EOPNOTSUPPORTED;
return 0;
}
#endif
if(!wildcard)
wildcard = "*";
do
{
ent = readdir(handle);
if(ent == NULL)
{
errno = ENOENT;
break;
}
}
#ifdef HAVE_FNMATCH
while(is_dots(ent));
#else
while(is_dots(ent) ||
fnmatch(wildcard, ent->d_name, FNM_PATHNAME) == FNM_NOMATCH);
#endif
if(ent)
memcpy(entry, ent, sizeof(struct dirent));
return ent != NULL;
}
DIR* dir_first(const char* folder, const char* wildcard, struct dirent* entry)
{
DIR* handle = opendir((folder && strlen(folder) > 0) ? folder : ".");
if(handle == NULL)
return INVALID_DIR;
if(dir_next(handle, wildcard, entry))
return handle;
else
{
errno = ENOENT;
dir_close(handle);
return INVALID_DIR;
}
}
void dir_close(DIR* handle)
{
closedir(handle);
}
#else
#include <direct.h>
#include <io.h>
int is_dots(struct _finddata_t* findinfo)
{
return findinfo->name &&
(!strcmp(findinfo->name, ".") || !strcmp(findinfo->name, ".."));
}
static void copyDirStruct(struct _finddata_t* findinfo, struct dirent* entry)
{
/* Copy the structure */
memset(entry, 0, sizeof(struct dirent));
entry->d_fileno = ~0;
entry->d_reclen = ~0;
strcpy(entry->d_name, findinfo->name);
entry->d_namlen = strlen(findinfo->name);
if(findinfo->attrib & _A_SUBDIR)
entry->d_type |= DT_DIR;
else
entry->d_type |= DT_REG;
}
DIR* dir_first(const char* folder, const char* wildcard, struct dirent* entry)
{
DIR* handle;
char buff[MAX_PATH * 2];
struct _finddata_t findinfo;
if(!wildcard)
wildcard = "*.*";
/* Check against buffer overflow hacks */
if(strlen(folder) + strlen(wildcard) + 1 > MAX_PATH * 2)
{
errno = ENAMETOOLONG;
return INVALID_DIR;
}
if(!(handle = malloc(sizeof(DIR))))
{
errno = ENOMEM;
return INVALID_DIR;
}
strcpy(buff, folder);
strcat(buff, strlen(folder) ? "\\" : "");
strcat(buff, wildcard);
/* Okay get the first file */
*handle = _findfirst(buff, &findinfo);
if(*handle == -1)
{
free(handle);
return INVALID_DIR;
}
/* We don't do dots */
else if(is_dots(&findinfo))
{
if(dir_next(handle, wildcard, entry))
return handle;
errno = ENOENT;
return INVALID_DIR;
}
/* Copy the first file */
else
{
copyDirStruct(&findinfo, entry);
return handle;
}
}
int dir_next(DIR* handle, const char* wildcard, struct dirent* entry)
{
struct _finddata_t findinfo;
int ret = _findnext(*handle, &findinfo) == 0;
if(ret)
{
if(is_dots(&findinfo))
return dir_next(handle, wildcard, entry);
else
copyDirStruct(&findinfo, entry);
}
return ret;
}
void dir_close(DIR* handle)
{
if(handle)
{
_findclose(*handle);
free(handle);
}
}
#endif
const char* getFilename(const char* path)
{
const char* filename = strrchr(path, '\\');
const char* filename2 = strrchr(path, '/');
if(filename2 > filename)
filename = filename2;
return filename ? filename : path;
}
const char* getExtension(const char* path)
{
return strrchr(path, '.');
}
int isDots(const char* path)
{
const char* filename = getFilename(path);
return (filename[0] == '.' && (filename[1] == '.' || filename[1] == '\0'));
}
int isDirectory(const char* path)
{
struct stat st;
if(stat(path, &st) == -1)
return 0;
return (st.st_mode & S_IFDIR) ? 1 : 0;
}
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