Makefile: add pickrand

[cmccabe-bin] / random-word.c

diff --git a/random-word.c b/random-word.c
deleted file mode 100644 (file)
index c75047b..0000000
--- a/random-word.c
+++ /dev/null
@@ -1,112 +0,0 @@
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#define DICT "/usr/share/dict/linux.words"
-#define STARTING_SZ 8192
-#define MAX_ARRAY_SZ 1073741824
-
-struct dict {
-       int num_words;
-       int array_sz;
-       char *words[0];
-};
-
-static int alloc_dict(struct dict **d, int array_sz)
-{
-       struct dict *nd;
-       int num_bytes;
-       if (array_sz > MAX_ARRAY_SZ) {
-               fprintf(stderr, "can't allocate a words array bigger "
-                       "than %d\n", MAX_ARRAY_SZ);
-               return EINVAL;
-       }
-
-       num_bytes = sizeof(struct dict) + (array_sz * sizeof(char*));
-       nd = realloc(*d, num_bytes);
-       if (!nd) {
-               fprintf(stderr, "failed to realloc to size %d\n",
-                       num_bytes);
-               return ENOSPC;
-       }
-       *d = nd;
-
-       nd->array_sz = array_sz;
-       return 0;
-}
-
-static struct dict* read_dict(FILE *fp)
-{
-       char word[500];
-       struct dict *d =
-               malloc(sizeof(struct dict) + (STARTING_SZ * sizeof(char*)));
-       if (! d) {
-               fprintf(stderr, "failed to allocate dict\n");
-               return NULL;
-       }
-       d->num_words = 0;
-       d->array_sz = STARTING_SZ;
-
-       while (1) {
-               if (! fgets(word, sizeof(word), fp)) {
-                       if (ferror(fp)) {
-                               int err = errno;
-                               fprintf(stderr, "%s: error reading line %d: "
-                                       "%s (%d)\n",
-                                       __func__, d->num_words + 1,
-                                       strerror(err), err);
-                       }
-                       else {
-                               return d;
-                       }
-               }
-               d->words[d->num_words] = strdup(word);
-               if (!d->words[d->num_words]) {
-                       fprintf(stderr, "failed to allocate word %d\n",
-                               d->num_words);
-                       free(d);
-                       return NULL;
-               }
-               d->num_words++;
-               if (d->num_words >= d->array_sz) {
-                       if (alloc_dict(&d, d->array_sz * 2)) {
-                               free(d);
-                               return NULL;
-                       }
-               }
-       }
-}
-
-static const char* choose_random_word(struct dict *dict)
-{
-       int choice = random() % dict->num_words;
-
-       return dict->words[choice];
-}
-
-int main(void)
-{
-       FILE *fp;
-       const char *word;
-       struct dict *dict;
-       srandom(time(NULL));
-
-       fp = fopen(DICT, "r");
-       if (! fp) {
-               int err = errno;
-               fprintf(stderr, "failed to open %s: %s (%d).\n",
-                       DICT, strerror(err), err);
-               return 1;
-       }
-       dict = read_dict(fp);
-       if (! dict)
-               return 1;
-       fclose(fp);
-
-       word = choose_random_word(dict);
-       printf("%s\n", word); 
-
-       return 0;
-}