}
#endif
+
+/* This code seems to have originally been written with the assumption that
+ * read(..., n) returns n on success. This is not the case (refer to
+ * <https://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>).
+ * Ditto for write.
+ */
+
+/*
+====================
+ReadAll
+
+Read exactly length bytes from fd into buf. If end of file is reached,
+the number of bytes read is returned. If an error occurred, that error
+is returned. Note that if an error is returned, any previously read
+data is lost.
+====================
+*/
+static fs_offset_t ReadAll(const filedesc_t fd, void *const buf, const size_t length)
+{
+ char *const p = (char *)buf;
+ size_t cursor = 0;
+ do
+ {
+ const fs_offset_t result = FILEDESC_READ(fd, p + cursor, length - cursor);
+ if (result < 0) // Error
+ return result;
+ if (result == 0) // EOF
+ break;
+ cursor += result;
+ } while (cursor < length);
+ return cursor;
+}
+
+/*
+====================
+WriteAll
+
+Write exactly length bytes to fd from buf.
+If an error occurred, that error is returned.
+====================
+*/
+static fs_offset_t WriteAll(const filedesc_t fd, const void *const buf, const size_t length)
+{
+ const char *const p = (const char *)buf;
+ size_t cursor = 0;
+ do
+ {
+ const fs_offset_t result = FILEDESC_WRITE(fd, p + cursor, length - cursor);
+ if (result < 0) // Error
+ return result;
+ cursor += result;
+ } while (cursor < length);
+ return cursor;
+}
+
+#undef FILEDESC_READ
+#define FILEDESC_READ ReadAll
+#undef FILEDESC_WRITE
+#define FILEDESC_WRITE WriteAll
+
/** \page fs File System
All of Quake's data access is through a hierchal file system, but the contents
};
static dllhandle_t shfolder_dll = NULL;
-const GUID qFOLDERID_SavedGames = {0x4C5C32FF, 0xBB9D, 0x43b0, {0xB5, 0xB4, 0x2D, 0x72, 0xE5, 0x4E, 0xAA, 0xA4}};
+const GUID qFOLDERID_SavedGames = {0x4C5C32FF, 0xBB9D, 0x43b0, {0xB5, 0xB4, 0x2D, 0x72, 0xE5, 0x4E, 0xAA, 0xA4}};
#define qREFKNOWNFOLDERID const GUID *
#define qKF_FLAG_CREATE 0x8000
#define qKF_FLAG_NO_ALIAS 0x1000
ret = FS_SysCheckGameDir(va(vabuf, sizeof(vabuf), "%s%s/", fs_basedir, gamedir), buf, sizeof(buf));
if(ret)
return ret;
-
+
return fs_checkgamedir_missing;
}
continue;
if(!*info)
continue;
- stringlistappend(&list2, list.strings[i]);
+ stringlistappend(&list2, list.strings[i]);
}
stringlistfreecontents(&list);
====================
FS_SanitizePath
-Sanitize path (replace non-portable characters
+Sanitize path (replace non-portable characters
with portable ones in-place, etc)
====================
*/
if(count < 0)
return NULL;
linkbuf[count] = 0;
-
+
// Now combine the paths...
mergeslash = strrchr(filename, '/');
mergestart = linkbuf;
{
Con_Printf("usage:\n%s <file>\n", Cmd_Argv(cmd, 0));
return;
- }
+ }
filename = Cmd_Argv(cmd, 1);
sp = FS_FindFile(filename, &index, true);
if (!sp) {
Mem_Free(tmp);
return NULL;
}
-
+
if(qz_deflateEnd(&strm) != Z_OK)
{
Con_Printf("FS_Deflate: deflateEnd failed\n");
memcpy(out, tmp, strm.total_out);
Mem_Free(tmp);
-
+
return out;
}
case Z_STREAM_END:
case Z_OK:
break;
-
+
case Z_STREAM_ERROR:
Con_Print("FS_Inflate: stream error!\n");
break;
default:
Con_Print("FS_Inflate: unknown error!\n");
break;
-
+
}
if(ret != Z_OK && ret != Z_STREAM_END)
{
Mem_Free(outbuf.data);
*inflated_size = (size_t)outbuf.cursize;
-
+
return out;
}