1 files changed, 0 insertions, 129 deletions
diff --git a/contrib/libio/dbz/case.c b/contrib/libio/dbz/case.c
deleted file mode 100644
index 87b741f..0000000
--- a/contrib/libio/dbz/case.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * case-mapping stuff
- *
- * We exploit the fact that we are dealing only with headers here, and
- * headers are limited to the ASCII characters by RFC822.  It is barely
- * possible that we might be dealing with a translation into another
- * character set, but in particular it's very unlikely for a header
- * character to be outside -128..255.
- *
- * Life would be a whole lot simpler if tolower() could safely and portably
- * be applied to any char.
- */
-#include <stdio.h>
-#include "string.h"
-#include "case.h"
-
-/* note that case.h knows the value of OFFSET */
-#define	OFFSET	128		/* avoid trouble with negative chars */
-#define	MAPSIZE	(256+OFFSET)
-char casemap[MAPSIZE];		/* relies on init to '\0' */
-static int primed = 0;		/* has casemap been set up? */
-
-/*
- - prime - set up case-mapping stuff
- */
-static void
-prime()
-{
-	register char *lp;
-	register char *up;
-	register int c;
-	register int i;
-	static char lower[] = "abcdefghijklmnopqrstuvwxyz";
-	static char upper[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-
-	for (lp = lower, up = upper; *lp != '\0'; lp++, up++) {
-		c = *lp;
-		casemap[c+OFFSET] = c;
-		casemap[*up+OFFSET] = c;
-	}
-	for (i = 0; i < MAPSIZE; i++)
-		if (casemap[i] == '\0')
-			casemap[i] = (char)(i-OFFSET);
-	primed = 1;
-}
-
-/*
- - cistrncmp - case-independent strncmp
- */
-int				/* < == > 0 */
-cistrncmp(s1, s2, len)
-char *s1;
-char *s2;
-int len;
-{
-	register char *p1;
-	register char *p2;
-	register int n;
-
-	if (!primed)
-		prime();
-
-	p1 = s1;
-	p2 = s2;
-	n = len;
-	while (--n >= 0 && *p1 != '\0' && TOLOW(*p1) == TOLOW(*p2)) {
-		p1++;
-		p2++;
-	}
-	if (n < 0)
-		return(0);
-
-	/*
-	 * The following case analysis is necessary so that characters
-	 * which look negative collate low against normal characters but
-	 * high against the end-of-string NUL.
-	 */
-	if (*p1 == '\0' && *p2 == '\0')
-		return(0);
-	else if (*p1 == '\0')
-		return(-1);
-	else if (*p2 == '\0')
-		return(1);
-	else
-		return(TOLOW(*p1) - TOLOW(*p2));
-}
-
-/*
- - rfc822ize - do the bizarre case conversion needed for rfc822 message-ids
- *
- * Actually, this is not quite complete.  Absolute, total, full RFC822
- * compliance requires a horrible parsing job, because of the arcane
- * quoting conventions -- abc"def"ghi is not equivalent to abc"DEF"ghi,
- * for example.  There are three or four things that might occur in the
- * domain part of a message-id that are case-sensitive.  They don't seem
- * to ever occur in real news, thank Cthulhu.  (What?  You were expecting
- * a merciful and forgiving deity to be invoked in connection with RFC822?
- * Forget it; none of them would come near it.)
- */
-char *				/* returns the argument */
-rfc822ize(s)
-char *s;
-{
-	register char *p;
-	static char post[] = "postmaster";
-	static int postlen = sizeof(post)-1;
-
-	if (!primed)
-		prime();
-
-	p = strrchr(s, '@');
-	if (p == NULL)			/* no local/domain split */
-		p = "";			/* assume all local */
-	else if	(p - (s+1) == postlen && CISTREQN(s+1, post, postlen)) {
-		/* crazy special case -- "postmaster" is case-insensitive */
-		p = s;
-	}
-#ifdef NONSTANDARD
-#ifdef RFCVIOLATION
-#ifdef B_2_11_MISTAKE
-	p = s;				/* all case-insensitive */
-#endif
-#endif
-#endif
-	for (; *p != '\0'; p++)
-		*p = TOLOW(*p);
-
-	return(s);
-}