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- #include <stdio.h>
- #include <ctype.h>
- #include "../src/paths.h"
-
- /* zippy.c
- *
- * Print a quotation from Zippy the Pinhead.
- * Qux <Kaufman-David@Yale> March 6, 1986
- *
- */
-
- #define BUFSIZE 2000
- #define SEP '\0'
- #define YOW_FILE "yow.lines"
-
- main (argc, argv)
- int argc;
- char *argv[];
- {
- FILE *fp;
- char file[BUFSIZ];
- void yow();
-
- if (argc > 2 && !strcmp (argv[1], "-f"))
- strcpy (file, argv[2]);
- else
- #ifdef vms
- sprintf (file, "%s%s", PATH_EXEC, YOW_FILE);
- #else
- sprintf (file, "%s/%s", PATH_EXEC, YOW_FILE);
- #endif
-
- if ((fp = fopen(file, "r")) == NULL) {
- perror(file);
- exit(1);
- }
-
- /* initialize random seed */
- srand((int) (getpid() + time((long *) 0)));
-
- yow(fp);
- fclose(fp);
- exit(0);
- }
-
- void
- yow (fp)
- FILE *fp;
- {
- static long len = -1;
- long offset;
- int c, i = 0;
- char buf[BUFSIZE];
-
- /* Get length of file, go to a random place in it */
- if (len == -1) {
- if (fseek(fp, 0, 2) == -1) {
- perror("fseek 1");
- exit(1);
- }
- len = ftell(fp);
- }
- offset = rand() % len;
- if (fseek(fp, offset, 0) == -1) {
- perror("fseek 2");
- exit(1);
- }
-
- /* Read until SEP, read next line, print it.
- (Note that we will never print anything before the first seperator.)
- If we hit EOF looking for the first SEP, just recurse. */
- while ((c = getc(fp)) != SEP)
- if (c == EOF) {
- yow(fp);
- return;
- }
-
- /* Skip leading whitespace, then read in a quotation.
- If we hit EOF before we find a non-whitespace char, recurse. */
- while (isspace(c = getc(fp)))
- ;
- if (c == EOF) {
- yow(fp);
- return;
- }
- buf[i++] = c;
- while ((c = getc(fp)) != SEP && c != EOF) {
- buf[i++] = c;
-
- if (i == BUFSIZ-1)
- /* Yow! Is this quotation too long yet? */
- break;
- }
- buf[i++] = 0;
- printf("%s\n", buf);
- }
-
-