diff options
author | Jakob Kaivo <jkk@ung.org> | 2019-03-13 20:53:45 -0400 |
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committer | Jakob Kaivo <jkk@ung.org> | 2019-03-13 20:53:45 -0400 |
commit | ffa8f3a239b3fee3cb1765f50ff2732536575e4f (patch) | |
tree | 6450886abeb838c201019a751243236301209dcc /asa.c |
migrate to gitlab
Diffstat (limited to 'asa.c')
-rw-r--r-- | asa.c | 96 |
1 files changed, 96 insertions, 0 deletions
@@ -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; +} |