From 9b3a0326cfc9ba5334f0ed0178a8ba6d1814bc19 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 9 Dec 2016 14:18:31 +0100
Subject: can read input - woohoo

---
 click-finder.c    | 125 +++++++++++++++++++++++++++++++++++++++++++++++++++---
 click-finder.h.in |   3 +-
 2 files changed, 122 insertions(+), 6 deletions(-)

diff --git a/click-finder.c b/click-finder.c
index ac953a5..54efb0f 100644
--- a/click-finder.c
+++ b/click-finder.c
@@ -1,10 +1,125 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <getopt.h>
 #include "click-finder.h"
 #include "version.h"
-#include <fftw3.h>
+// #include <fftw3.h>
 
-int main(int argc, char** argv) {
-  printf("%s\n", VERSION);
-  return 0;
-}
+static int verbose_flag;
+static long long int bytes_per_sample = 3;
+static long long int channels = 1;
+
+int
+main(int argc, char **argv)
+  {
+    int c;
+    int samples_read;
+    while (1)
+      {
+        static struct option long_options[] =
+          {
+            {"help",          no_argument,       0,             0},
+            {"version",       no_argument,       0,             0},
+            {"verbose",       no_argument,       &verbose_flag, 1},
+            {"brief",         no_argument,       &verbose_flag, 0},
+            {"bitspersample", required_argument, 0,             'b'},
+            {"channels",      required_argument, 0,             'c'},
+            {0, 0, 0, 0}
+          };
+        /* getopt_long stores the option index here. */
+        int option_index = 0;
+
+        c = getopt_long (argc, argv, "b:hv",
+                         long_options, &option_index);
+        /* Detect the end of the options. */
+        if (c == -1)
+          break;
+
+        switch (c)
+          {
+            case 0:
+              /* If this option set a flag, do nothing else now. */
+              if (long_options[option_index].flag != 0)
+                break;
+              switch (option_index)
+                {
+                  case 0:
+                    printf("Print help here.\n");
+                    exit(0);
+                  case 1:
+                    printf("This is %s, version %s\n", progname, VERSION);
+                    exit(0);
+                  default:
+                    fprintf (stderr, "unknown option %s", long_options[option_index].name);
+                    if (optarg)
+                      fprintf (stderr, " with arg %s", optarg);
+                    fprintf (stderr, "\n");
+                    exit(1);
+                }
+              break;
+
+            case 'b':
+              if (atoi(optarg) % 8 != 0)
+                {
+                  fprintf(stderr, "%s: bits per sample (%d) is no multiple of 8", progname, atoi(optarg));
+                  exit(1);
+                }
+              bytes_per_sample = atoi(optarg)/8;
+              break;
+
+            case 'c':
+              channels = atoi(optarg);
+              break;
+
+            case 'v':
+              verbose_flag=1;
+              break;
+
+            case '?':
+              /* getopt_long already printed an error message. */
+              exit(1);
+
+            default:
+              exit(1);
+          }
+      }
+
+    if (optind != argc)
+      {
+        fprintf(stderr, "%s: spurious option '%s'\n", progname, argv[optind]);
+        exit(1);
+      }
+
+    if (verbose_flag)
+      {
+        fprintf(stderr, "bps:      %d\n", bytes_per_sample*8);
+        fprintf(stderr, "channels: %d\n", channels);
+      }
+
+    int8_t *content = malloc(sizeof(int8_t) * bytes_per_sample * channels * BUF_SIZE);
+    long long int content_length = 0; // in bytes
+    if (content == NULL)
+      {
+        fprintf(stderr, "%s: Failed to allocate content", progname);
+        exit(1);
+      }
+    while (samples_read = fread(content + content_length, bytes_per_sample * channels, BUF_SIZE, stdin))
+      {
+        content_length += samples_read * bytes_per_sample * channels;
+        content = realloc(content, content_length + sizeof(int8_t) * bytes_per_sample * channels * BUF_SIZE);
+      }
+
+    if(ferror(stdin))
+      {
+        free(content);
+        fprintf(stderr, "%s: Error reading from stdin.", progname);
+        exit(1);
+      }
+
+    fprintf(stderr, "%d", content_length);
+
+    free(content);
+    if (verbose_flag)
+      fprintf(stderr, "success\n");
+    return 0;
+  }
diff --git a/click-finder.h.in b/click-finder.h.in
index 8b13789..e724055 100644
--- a/click-finder.h.in
+++ b/click-finder.h.in
@@ -1 +1,2 @@
-
+#define progname "click-finder"
+#define BUF_SIZE 1024
-- 
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