1 files changed, 0 insertions, 141 deletions
diff --git a/exif.c b/exif.c
deleted file mode 100644
index 424d36d..0000000
--- a/exif.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* Copyright 2012 Bert Muennich
- *
- * This file is part of sxiv.
- *
- * sxiv 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.
- *
- * sxiv 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 sxiv.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define _POSIX_C_SOURCE 200112L
-
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include "exif.h"
-#include "util.h"
-
-ssize_t s_read(int fd, const char *fn, void *buf, size_t n)
-{
-	ssize_t ret;
-
-	ret = read(fd, buf, n);
-	if (ret < n) {
-		warn("unexpected end-of-file: %s", fn);
-		return -1;
-	} else {
-		return ret;
-	}
-}
-
-unsigned short btous(unsigned char *buf, byteorder_t order)
-{
-	if (buf == NULL)
-		return 0;
-	if (order == BO_BIG_ENDIAN)
-		return buf[0] << 8 | buf[1];
-	else
-		return buf[1] << 8 | buf[0];
-}
-
-unsigned int btoui(unsigned char *buf, byteorder_t order)
-{
-	if (buf == NULL)
-		return 0;
-	if (order == BO_BIG_ENDIAN)
-		return buf[0] << 24 | buf[1] << 16 | buf[2] << 8 | buf[3];
-	else
-		return buf[3] << 24 | buf[2] << 16 | buf[1] << 8 | buf[0];
-}
-
-int exif_orientation(const fileinfo_t *file)
-{
-	int fd;
-	unsigned char data[EXIF_MAX_LEN];
-	byteorder_t order = BO_BIG_ENDIAN;
-	unsigned int cnt, len, idx, val;
-
-	if (file == NULL || file->path == NULL)
-		return -1;
-
-	fd = open(file->path, O_RDONLY);
-	if (fd < 0)
-		return -1;
-
-	if (s_read(fd, file->name, data, 2) < 0)
-		goto abort;
-	if (btous(data, order) != JPEG_MARKER_SOI)
-		goto abort;
-	if (s_read(fd, file->name, data, 4) < 0)
-		goto abort;
-
-	if (btous(data, order) == JPEG_MARKER_APP0) {
-		len = btous(data + 2, order);
-		if (lseek(fd, len - 2, SEEK_CUR) == (off_t) -1)
-			goto abort;
-		if (s_read(fd, file->name, data, 4) < 0)
-			goto abort;
-	}
-	if (btous(data, order) != JPEG_MARKER_APP1)
-		goto abort;
-	len = btous(data + 2, order);
-	if (len < 8)
-		goto abort;
-
-	if (s_read(fd, file->name, data, 6) < 0)
-		goto abort;
-	if (btoui(data, order) != EXIF_HEAD)
-		goto abort;
-
-	len -= 8;
-	if (len < 12 || len > EXIF_MAX_LEN)
-		goto abort;
-	if (s_read(fd, file->name, data, len) < 0)
-		goto abort;
-
-	switch (btous(data, order)) {
-		case EXIF_BO_BIG_ENDIAN:
-			order = BO_BIG_ENDIAN;
-			break;
-		case EXIF_BO_LITTLE_ENDIAN:
-			order = BO_LITTLE_ENDIAN;
-			break;
-		default:
-			goto abort;
-			break;
-	}
-
-	if (btous(data + 2, order) != EXIF_TAG_MARK)
-		goto abort;
-	idx = btoui(data + 4, order);
-	if (idx > len - 2)
-		goto abort;
-
-	val = 0;
-	cnt = btous(data + idx, order);
-
-	for (idx += 2; cnt > 0 && idx < len - 12; cnt--, idx += 12) {
-		if (btous(data + idx, order) == EXIF_TAG_ORIENTATION) {
-			val = btous(data + idx + 8, order);
-			break;
-		}
-	}
-
-	close(fd);
-	return val;
-
-abort:
-	close(fd);
-	return -1;
-}