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-rw-r--r--src/osd/sdl/sdldir.cpp237
1 files changed, 237 insertions, 0 deletions
diff --git a/src/osd/sdl/sdldir.cpp b/src/osd/sdl/sdldir.cpp
new file mode 100644
index 00000000000..5ec1b2fca32
--- /dev/null
+++ b/src/osd/sdl/sdldir.cpp
@@ -0,0 +1,237 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert, R. Belmont
+//============================================================
+//
+// sdldir.c - SDL core directory access functions
+//
+// SDLMAME by Olivier Galibert and R. Belmont
+//
+//============================================================
+
+#ifdef SDLMAME_WIN32
+#include "../windows/windir.c"
+#else
+
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE
+#endif
+
+#ifdef SDLMAME_LINUX
+#define __USE_LARGEFILE64
+#endif
+#ifndef SDLMAME_BSD
+#ifdef _XOPEN_SOURCE
+#undef _XOPEN_SOURCE
+#endif
+#define _XOPEN_SOURCE 500
+#endif
+
+//#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#ifndef __USE_BSD
+#define __USE_BSD // to get DT_xxx on Linux
+#endif
+#undef _POSIX_C_SOURCE // to get DT_xxx on OS X
+#include <dirent.h>
+
+#include "osdcore.h"
+#include "modules/lib/osdlib.h"
+
+#if defined(SDLMAME_WIN32) || defined(SDLMAME_OS2)
+#define PATHSEPCH '\\'
+#define INVPATHSEPCH '/'
+#else
+#define PATHSEPCH '/'
+#define INVPATHSEPCH '\\'
+#endif
+
+#if defined(SDLMAME_DARWIN) || defined(SDLMAME_WIN32) || defined(SDLMAME_NO64BITIO) || defined(SDLMAME_BSD) || defined(SDLMAME_OS2) || defined(SDLMAME_HAIKU) || defined(SDLMAME_EMSCRIPTEN)
+typedef struct dirent sdl_dirent;
+typedef struct stat sdl_stat;
+#define sdl_readdir readdir
+#define sdl_stat_fn stat
+#else
+typedef struct dirent64 sdl_dirent;
+typedef struct stat64 sdl_stat;
+#define sdl_readdir readdir64
+#define sdl_stat_fn stat64
+#endif
+
+#define HAS_DT_XXX defined(SDLMAME_LINUX) || defined(SDLMAME_BSD) || defined(SDLMAME_DARWIN)
+
+struct osd_directory
+{
+ osd_directory_entry ent;
+ sdl_dirent *data;
+ DIR *fd;
+ char *path;
+};
+
+static char *build_full_path(const char *path, const char *file)
+{
+ char *ret = (char *) osd_malloc_array(strlen(path)+strlen(file)+2);
+ char *p = ret;
+
+ strcpy(p, path);
+ p += strlen(path);
+ *p++ = PATHSEPCH;
+ strcpy(p, file);
+ return ret;
+}
+
+
+#if HAS_DT_XXX
+static osd_dir_entry_type get_attributes_enttype(int attributes, char *path)
+{
+ switch ( attributes )
+ {
+ case DT_DIR:
+ return ENTTYPE_DIR;
+
+ case DT_REG:
+ return ENTTYPE_FILE;
+
+ case DT_LNK:
+ {
+ struct stat s;
+
+ if ( stat(path, &s) != 0 )
+ return ENTTYPE_OTHER;
+ else
+ return S_ISDIR(s.st_mode) ? ENTTYPE_DIR : ENTTYPE_FILE;
+ }
+
+ default:
+ return ENTTYPE_OTHER;
+ }
+}
+#else
+
+static osd_dir_entry_type get_attributes_stat(const char *file)
+{
+ sdl_stat st;
+ if(sdl_stat_fn(file, &st))
+ return (osd_dir_entry_type) 0;
+
+ if (S_ISDIR(st.st_mode))
+ return ENTTYPE_DIR;
+ else
+ return ENTTYPE_FILE;
+}
+#endif
+
+static UINT64 osd_get_file_size(const char *file)
+{
+ sdl_stat st;
+ if(sdl_stat_fn(file, &st))
+ return 0;
+ return st.st_size;
+}
+
+//============================================================
+// osd_opendir
+//============================================================
+
+osd_directory *osd_opendir(const char *dirname)
+{
+ osd_directory *dir = NULL;
+ char *tmpstr, *envstr;
+ int i, j;
+
+ dir = (osd_directory *) osd_malloc(sizeof(osd_directory));
+ if (dir)
+ {
+ memset(dir, 0, sizeof(osd_directory));
+ dir->fd = NULL;
+ }
+
+ tmpstr = (char *) osd_malloc_array(strlen(dirname)+1);
+ strcpy(tmpstr, dirname);
+
+ if (tmpstr[0] == '$')
+ {
+ envstr = (char *) osd_malloc_array(strlen(tmpstr)+1);
+
+ strcpy(envstr, tmpstr);
+
+ i = 0;
+ while (envstr[i] != PATHSEPCH && envstr[i] != INVPATHSEPCH && envstr[i] != 0 && envstr[i] != '.')
+ {
+ i++;
+ }
+
+ envstr[i] = '\0';
+
+ const char *envval = osd_getenv(&envstr[1]);
+ if (envval != NULL)
+ {
+ j = strlen(envval) + strlen(tmpstr) + 1;
+ osd_free(tmpstr);
+ tmpstr = (char *) osd_malloc_array(j);
+
+ // start with the value of $HOME
+ strcpy(tmpstr, envval);
+ // replace the null with a path separator again
+ envstr[i] = PATHSEPCH;
+ // append it
+ strcat(tmpstr, &envstr[i]);
+ }
+ else
+ fprintf(stderr, "Warning: osd_opendir environment variable %s not found.\n", envstr);
+ osd_free(envstr);
+ }
+
+ dir->fd = opendir(tmpstr);
+ dir->path = tmpstr;
+
+ if (dir && (dir->fd == NULL))
+ {
+ osd_free(dir->path);
+ osd_free(dir);
+ dir = NULL;
+ }
+
+ return dir;
+}
+
+
+//============================================================
+// osd_readdir
+//============================================================
+
+const osd_directory_entry *osd_readdir(osd_directory *dir)
+{
+ char *temp;
+ dir->data = sdl_readdir(dir->fd);
+
+ if (dir->data == NULL)
+ return NULL;
+
+ dir->ent.name = dir->data->d_name;
+ temp = build_full_path(dir->path, dir->data->d_name);
+ #if HAS_DT_XXX
+ dir->ent.type = get_attributes_enttype(dir->data->d_type, temp);
+ #else
+ dir->ent.type = get_attributes_stat(temp);
+ #endif
+ dir->ent.size = osd_get_file_size(temp);
+ osd_free(temp);
+ return &dir->ent;
+}
+
+
+//============================================================
+// osd_closedir
+//============================================================
+
+void osd_closedir(osd_directory *dir)
+{
+ if (dir->fd != NULL)
+ closedir(dir->fd);
+ osd_free(dir->path);
+ osd_free(dir);
+}
+
+
+#endif