dirconvert.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * Copyright (c) 2021
   5  *      Cameron Katri.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY CAMERON KATRI AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL CAMERON KATRI OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <ctype.h>
  30 #include <stdbool.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <sysexits.h>
  35 #include <libgen.h>
  36
  37 #include "common.h"
  38
  39 void usage(const char *);
  40 char *tols_colors(char *);
  41
  42 int
  43 main(int argc, char **argv)
  44 {
  45         if (argc != 2)
  46                 usage(argv[0]);
  47
  48         char *input = NULL;
  49         if (strcmp(argv[1], "-") == 0) {
  50                 char *buf = NULL;
  51                 size_t linecap = 0;
  52                 ssize_t linelen;
  53                 getline(&buf, &linecap, stdin);
  54                 if (buf[sizeof(buf) - 1] == '\n')
  55                         buf[sizeof(buf) - 1] = '\0';
  56                 input = strdup(buf);
  57                 free(buf);
  58         } else
  59                 input = argv[1];
  60
  61         if (strchr(input, '='))
  62                 fprintf(stdout, "%s\n", tolscolors(input));
  63         else
  64                 fprintf(stdout, "%s\n", tols_colors(input));
  65
  66         return (0);
  67 }
  68
  69 char *
  70 tols_colors(char *lscolors)
  71 {
  72         char *ls_out = strdup("");
  73
  74         for (int i = 0; i < 11; i++) {
  75                 if (lscolors[2 * i] == 'x' && lscolors[2 * i + 1] == 'x')
  76                         continue;
  77                 sprintf(ls_out + strlen(ls_out), "%s=", types[i]);
  78                 if (isupper(lscolors[2 * i]))
  79                         sprintf(ls_out + strlen(ls_out), "01;");
  80                 if (tolower(lscolors[2 * i]) == 'x')
  81                         sprintf(ls_out + strlen(ls_out), "00");
  82                 else if (tolower(lscolors[2 * i] != 'x'))
  83                         sprintf(ls_out + strlen(ls_out), "3%i",
  84                             (int)(strchr(col, tolower(lscolors[2 * i])) - col));
  85                 if (tolower(lscolors[2 * i + 1]) != 'x')
  86                         sprintf(ls_out + strlen(ls_out), ";4%i",
  87                             (int)(strchr(col, tolower(lscolors[2 * i])) - col));
  88                 sprintf(ls_out + strlen(ls_out), ":");
  89         }
  90         char *ret = strdup(ls_out);
  91         free(ls_out);
  92         return (ret);
  93 }
  94
  95 void
  96 usage(const char *progname)
  97 {
  98         char *path;
  99         path = strdup(progname);
 100
 101         (void)fprintf(stderr, "usage: %s LSCOLORS|LS_COLORS\n", basename(path));
 102         exit(EX_USAGE);
 103 }