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authorJune McEnroe <june@causal.agency>2018-02-14 14:01:47 -0500
committerJune McEnroe <june@causal.agency>2018-02-14 14:01:47 -0500
commit201c01d5d053ddaa3ae22e71695b065aa7061116 (patch)
tree53b0efdff7157b63f2beec8acbe65fd19fe0999c /bin/pngs.c
parentRemove typo (diff)
downloadsrc-201c01d5d053ddaa3ae22e71695b065aa7061116.tar.gz
src-201c01d5d053ddaa3ae22e71695b065aa7061116.zip
Move PNG filename counter into gfxx
pngs.c was a fun idea but a little convoluted.
Diffstat (limited to 'bin/pngs.c')
-rw-r--r--bin/pngs.c75
1 files changed, 0 insertions, 75 deletions
diff --git a/bin/pngs.c b/bin/pngs.c
deleted file mode 100644
index 6c26c303..00000000
--- a/bin/pngs.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/* Copyright (c) 2018, June McEnroe <programble@gmail.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <err.h>
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-static const uint8_t SIGNATURE[] = { 0x89, 'P', 'N', 'G', '\r', '\n', 0x1A, '\n' };
-static const uint8_t IEND[] = { 'I', 'E', 'N', 'D' };
-
-static unsigned counter;
-static char path[FILENAME_MAX];
-static int fd;
-
-static void next(const char *prefix) {
-    if (counter++) {
-        int error = close(fd);
-        if (error) err(EX_IOERR, "%s", path);
-    }
-    snprintf(path, sizeof(path), "%s%04u.png", prefix, counter);
-    fd = open(path, O_WRONLY | O_CREAT | O_EXCL, 0644);
-    if (fd < 0) err(EX_CANTCREAT, "%s", path);
-    printf("%s\n", path);
-}
-
-static void writeAll(const uint8_t *buf, size_t size) {
-    while (size) {
-        ssize_t writeSize = write(fd, buf, size);
-        if (writeSize < 0) err(EX_IOERR, "%s", path);
-        buf += writeSize;
-        size -= writeSize;
-    }
-}
-
-int main(int argc, char *argv[]) {
-    const char *prefix = (argc > 1) ? argv[1] : "";
-
-    for (;;) {
-        uint8_t buf[4096];
-        ssize_t size = read(STDIN_FILENO, buf, sizeof(buf));
-        if (size < 0) err(EX_IOERR, "read");
-        if (!size) return EX_OK;
-
-        const uint8_t *signature = memmem(buf, size, SIGNATURE, sizeof(SIGNATURE));
-        if (signature) {
-            writeAll(buf, signature - buf);
-            next(prefix);
-            writeAll(signature, size - (signature - buf));
-        } else {
-            const uint8_t *iend = memmem(buf, size, IEND, sizeof(IEND));
-            if (iend && iend - buf < size - 8) {
-                warnx("trailing data, a PNG may be skipped");
-            }
-            writeAll(buf, size);
-        }
-    }
-}