Create tools directory

Signed-off-by: Malfurious <m@lfurio.us>

1 files changed, 0 insertions, 204 deletions

diff --git a/catcho.c b/catcho.c
deleted file mode 100644
index 3426e50..0000000
--- a/catcho.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * catcho - outputing text to the standard output
- *
- * Usage
- * -----
- *  catcho [options]
- *
- * Options
- * -------
- *  -m --mode MODE      Set the initial text mode (Default: passthrough)
- *  -v --version        Display program information and exit
- *  -V --verbose        Duplicate stdout on stderr
- *
- * Modes
- * -----
- *  passthru / passthrough / normal / n - Input is copied to output verbatim.
- *  null / z - Input is dropped.
- *  hb - Input (interpreted as hex) is compressed to bytes on the output.
- *  bh - The opposite of hb.
- *  ib - Input (interpreted as bit-bytes) is compressed to bytes on the output.
- *  bi - The opposite of ib.
- *
- *  Append 'f' to any mode (eg:  bhf):  Input is interpreted as '\n'-delimited
- *  filenames.  File contents are filtered based on mode and sent to output.
- *
- * Switching modes
- * ---------------
- *  When catcho receives signal SIGINT (ctrl-C from the terminal, for example),
- *  any pending input/output is flushed and catcho then interprets the input
- *  as a mode name terminated by a '\n'.  Once the input provides a string\n,
- *  it switches the desired mode and input processing resumes.
- *
- * Exiting catcho
- * --------------
- *  Since SIGINT is used for mode switching, the 'normal' way to terminate
- *  catcho is by sending it an End-Of-File byte on its input. (ctrl-D on your
- *  terminal)
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <signal.h>
-
-#define LAST_STR_CHAR(s) (s[strlen(s)-1])
-
-/* modes */
-enum mode
-{
-    N,
-    Z,
-    HB,
-    BH,
-    IB,
-    BI
-};
-
-/* global state */
-static enum mode current_mode = N;
-static int  current_mode_f = 0;
-static int  current_verbose = 0;
-
-static size_t ccfwrite(const void *ptr, size_t size, size_t nmemb)
-{
-    size_t ret;
-    ret = fwrite(ptr, size, nmemb, stdout);
-
-    if (current_verbose)
-        fwrite(ptr, size, nmemb, stderr);
-
-    return ret;
-}
-
-static void sigint(int sig)
-{
-    (void)sig;
-    ccfwrite("in signal handler\n", 18, 1);
-}
-
-static int set_mode(const char *mode)
-{
-    if (!mode)
-        return 0;
-
-    if (!strcmp(mode, "passthru") || // these don't support 'f' suffix
-        !strcmp(mode, "passthrough") ||
-        !strcmp(mode, "normal"))
-    {
-        current_mode = N;
-        current_mode_f = 0;
-    }
-    else if (!strcmp(mode, "null")) // this doesn't support 'f' suffix
-    {
-        current_mode = Z;
-        current_mode_f = 0;
-    }
-    else if (!strncmp(mode, "n", 1))
-    {
-        current_mode = N;
-        current_mode_f = (LAST_STR_CHAR(mode) == 'f');
-    }
-    else if (!strncmp(mode, "z", 1))
-    {
-        current_mode = Z;
-        current_mode_f = (LAST_STR_CHAR(mode) == 'f');
-    }
-    else if (!strncmp(mode, "hb", 2))
-    {
-        current_mode = HB;
-        current_mode_f = (LAST_STR_CHAR(mode) == 'f');
-    }
-    else if (!strncmp(mode, "bh", 2))
-    {
-        current_mode = BH;
-        current_mode_f = (LAST_STR_CHAR(mode) == 'f');
-    }
-    else if (!strncmp(mode, "ib", 2))
-    {
-        current_mode = IB;
-        current_mode_f = (LAST_STR_CHAR(mode) == 'f');
-    }
-    else if (!strncmp(mode, "bi", 2))
-    {
-        current_mode = BI;
-        current_mode_f = (LAST_STR_CHAR(mode) == 'f');
-    }
-    else
-    {
-        fprintf(stderr, "Mode string '%s' not recognized\n", mode);
-        return 0;
-    }
-
-    return 1;
-}
-
-void show_version(const char *name)
-{
-    printf("%s version 1.0\n", name);
-}
-
-int main(int argc, char **argv)
-{
-    /*
-     * handling command-line arguments:
-     * i'm going to leave opterr alone (defaults to non-zero)
-     * \this causes getopt to print its own error messages to
-     *  stderr if things go wrong, which is fine.
-     */
-
-    const char *shortopts = "m:vV";
-
-    const struct option longopts[] = {
-        { "mode",    required_argument, NULL, 'm' },
-        { "version", no_argument,       NULL, 'v' },
-        { "verbose", no_argument,       NULL, 'V' },
-        { NULL,      0,                 NULL,  0  }
-    };
-
-    int opt;
-
-    while ((opt = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1)
-    {
-        switch (opt)
-        {
-            case '?':
-                return 1;
-
-            case 'm':
-                if (!set_mode(optarg))
-                    return 1;
-                break;
-
-            case 'v':
-                show_version(argv[0]);
-                return 0;
-
-            case 'V':
-                current_verbose = 1;
-                break;
-        }
-    }
-
-    /* setup signals (mode switch) */
-    signal(SIGINT, &sigint);
-
-
-    char memes[4];
-    fread(memes, 4, 1, stdin);
-    switch (current_mode)
-    {
-        case N:  printf("NORMAL\n"); break;
-        case Z:  printf("NULL\n"); break;
-        case HB: printf("hex to bytes\n"); break;
-        case BH: printf("bytes to hex\n"); break;
-        case IB: printf("bits to bytes\n"); break;
-        case BI: printf("bytes to bits\n"); break;
-    }
-
-    printf("file mode: %i\n", current_mode_f);
-    printf("verbose mode: %i\n", current_verbose);
-
-    return 0;
-}