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authorJakob Kaivo <jkk@ung.org>2019-03-13 20:53:45 -0400
committerJakob Kaivo <jkk@ung.org>2019-03-13 20:53:45 -0400
commitffa8f3a239b3fee3cb1765f50ff2732536575e4f (patch)
tree6450886abeb838c201019a751243236301209dcc /asa.c
migrate to gitlab
Diffstat (limited to 'asa.c')
-rw-r--r--asa.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/asa.c b/asa.c
new file mode 100644
index 0000000..9c2cc35
--- /dev/null
+++ b/asa.c
@@ -0,0 +1,96 @@
+/*
+ * UNG's Not GNU
+ *
+ * Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#define _XOPEN_SOURCE 700
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int asa(const char *path)
+{
+ FILE *f = stdin;
+ if (path && strcmp(path, "-")) {
+ f = fopen(path, "rb");
+ }
+
+ if (f == NULL) {
+ fprintf(stderr, "asa: Couldn't open %s: %s\n", path ? path : "stdin", strerror(errno));
+ return 1;
+ }
+
+ while (!feof(f)) {
+ char *line = NULL;
+ size_t n = 0;
+
+ if (getline(&line, &n, f) == -1) {
+ if (ferror(f)) {
+ fprintf(stderr, "asa: Couldn't open %s: %s\n", path ? path : "stdin", strerror(errno));
+ return 1;
+ }
+ if (line) {
+ free(line);
+ }
+ continue;
+ }
+
+ switch(line[0]) {
+ case '0':
+ putchar('\n');
+ break;
+
+ case '1':
+ putchar('\f');
+ break;
+
+ case '+':
+ putchar('\r');
+ break;
+
+ case ' ':
+ default:
+ break;
+ }
+
+ fputs(line + 1, stdout);
+ free(line);
+ }
+
+ if (f != stdin) {
+ fclose(f);
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ while (getopt(argc, argv, "") != -1) {
+ return 1;
+ }
+
+ int r = 0;
+
+ do {
+ r |= asa(argv[optind++]);
+ } while (optind < argc);
+
+ return r;
+}