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-rw-r--r--hangman/getword.c92
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diff --git a/hangman/getword.c b/hangman/getword.c
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+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)getword.c 5.3 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+# include "hangman.h"
+
+# if pdp11
+# define RN (((off_t) rand() << 16) | (off_t) rand())
+# else
+# define RN rand()
+# endif
+
+/*
+ * getword:
+ * Get a valid word out of the dictionary file
+ */
+getword()
+{
+ register FILE *inf;
+ register char *wp, *gp;
+
+ inf = Dict;
+ for (;;) {
+ fseek(inf, abs(RN % Dict_size), 0);
+ if (fgets(Word, BUFSIZ, inf) == NULL)
+ continue;
+ if (fgets(Word, BUFSIZ, inf) == NULL)
+ continue;
+ Word[strlen(Word) - 1] = '\0';
+ if (strlen(Word) < MINLEN)
+ continue;
+ for (wp = Word; *wp; wp++)
+ if (!islower(*wp))
+ goto cont;
+ break;
+cont: ;
+ }
+ gp = Known;
+ wp = Word;
+ while (*wp) {
+ *gp++ = '-';
+ wp++;
+ }
+ *gp = '\0';
+}
+
+/*
+ * abs:
+ * Return the absolute value of an integer
+ */
+off_t
+abs(i)
+off_t i;
+{
+ if (i < 0)
+ return -(off_t) i;
+ else
+ return (off_t) i;
+}