- Sync with OpenBSD glob.c, strlcat.c and vis.c changes

3 files changed, 49 insertions, 43 deletions

diff --git a/openbsd-compat/glob.c b/openbsd-compat/glob.c
index 677a8a10..4f70149c 100644
--- a/openbsd-compat/glob.c
+++ b/openbsd-compat/glob.c
@@ -56,7 +56,7 @@ get_arg_max()
 #if 0
 static char sccsid[] = "@(#)glob.c	8.3 (Berkeley) 10/13/93";
 #else
-static char rcsid[] = "$OpenBSD: glob.c,v 1.14 2001/03/28 20:54:19 millert Exp $";
+static char rcsid[] = "$OpenBSD: glob.c,v 1.16 2001/04/05 18:36:12 deraadt Exp $";
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -137,7 +137,7 @@ typedef char Char;
 
 
 static int	 compare __P((const void *, const void *));
-static int	 g_Ctoc __P((const Char *, char *, char *));
+static int	 g_Ctoc __P((const Char *, char *, u_int));
 static int	 g_lstat __P((Char *, struct stat *, glob_t *));
 static DIR	*g_opendir __P((Char *, glob_t *));
 static Char	*g_strchr __P((Char *, int));
@@ -193,8 +193,7 @@ glob(pattern, flags, errfunc, pglob)
 					--patnext;
 				}
 				*bufnext++ = c | M_PROTECT;
-			}
-			else
+			} else
 				*bufnext++ = c;
 	}
 	*bufnext = EOS;
@@ -248,7 +247,7 @@ globexp2(ptr, pattern, pglob, rv)
 
 	/* copy part up to the brace */
 	for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++)
-		continue;
+		;
 	*lm = EOS;
 	ls = lm;
 
@@ -257,7 +256,7 @@ globexp2(ptr, pattern, pglob, rv)
 		if (*pe == LBRACKET) {
 			/* Ignore everything between [] */
 			for (pm = pe++; *pe != RBRACKET && *pe != EOS; pe++)
-				continue;
+				;
 			if (*pe == EOS) {
 				/*
 				 * We could not find a matching RBRACKET.
@@ -265,8 +264,7 @@ globexp2(ptr, pattern, pglob, rv)
 				 */
 				pe = pm;
 			}
-		}
-		else if (*pe == LBRACE)
+		} else if (*pe == LBRACE)
 			i++;
 		else if (*pe == RBRACE) {
 			if (i == 0)
@@ -285,7 +283,7 @@ globexp2(ptr, pattern, pglob, rv)
 		case LBRACKET:
 			/* Ignore everything between [] */
 			for (pl = pm++; *pm != RBRACKET && *pm != EOS; pm++)
-				continue;
+				;
 			if (*pm == EOS) {
 				/*
 				 * We could not find a matching RBRACKET.
@@ -311,13 +309,14 @@ globexp2(ptr, pattern, pglob, rv)
 			else {
 				/* Append the current string */
 				for (lm = ls; (pl < pm); *lm++ = *pl++)
-					continue;
+					;
+
 				/*
 				 * Append the rest of the pattern after the
 				 * closing brace
 				 */
-				for (pl = pe + 1; (*lm++ = *pl++) != EOS;)
-					continue;
+				for (pl = pe + 1; (*lm++ = *pl++) != EOS; )
+					;
 
 				/* Expand the current pattern */
 #ifdef DEBUG
@@ -362,10 +361,15 @@ globtilde(pattern, patbuf, patbuf_len, pglob)
 	eb = &patbuf[patbuf_len - 1];
 	for (p = pattern + 1, h = (char *) patbuf;
 	    h < (char *)eb && *p && *p != SLASH; *h++ = *p++)
-		continue;
+		;
 
 	*h = EOS;
 
+#if 0
+	if (h == (char *)eb)
+		return what;
+#endif
+
 	if (((char *) patbuf)[0] == EOS) {
 		/*
 		 * handle a plain ~ or ~/ by expanding $HOME
@@ -380,8 +384,7 @@ globtilde(pattern, patbuf, patbuf_len, pglob)
 			else
 				h = pwd->pw_dir;
 		}
-	}
-	else {
+	} else {
 		/*
 		 * Expand a ~user
 		 */
@@ -393,11 +396,11 @@ globtilde(pattern, patbuf, patbuf_len, pglob)
 
 	/* Copy the home directory */
 	for (b = patbuf; b < eb && *h; *b++ = *h++)
-		continue;
+		;
 
 	/* Append the rest of the pattern */
 	while (b < eb && (*b++ = *p++) != EOS)
-		continue;
+		;
 	*b = EOS;
 
 	return patbuf;
@@ -621,7 +624,7 @@ glob3(pathbuf, pathbuf_last, pathend, pathend_last, pattern, pattern_last,
 	if ((dirp = g_opendir(pathbuf, pglob)) == NULL) {
 		/* TODO: don't call for ENOENT or ENOTDIR? */
 		if (pglob->gl_errfunc) {
-			if (g_Ctoc(pathbuf, buf, buf+sizeof(buf)))
+			if (g_Ctoc(pathbuf, buf, sizeof(buf)))
 				return(GLOB_ABORTED);
 			if (pglob->gl_errfunc(buf, errno) ||
 			    pglob->gl_flags & GLOB_ERR)
@@ -718,11 +721,11 @@ globextend(path, pglob, limitp)
 	pglob->gl_pathv = pathv;
 
 	for (p = path; *p++;)
-		continue;
+		;
 	len = (size_t)(p - path);
 	*limitp += len;
 	if ((copy = malloc(len)) != NULL) {
-		if (g_Ctoc(path, copy, copy+len+1)) {
+		if (g_Ctoc(path, copy, len)) {
 			free(copy);
 			return(GLOB_NOSPACE);
 		}
@@ -820,7 +823,7 @@ g_opendir(str, pglob)
 	if (!*str)
 		strcpy(buf, ".");
 	else {
-		if (g_Ctoc(str, buf, buf+sizeof(buf)))
+		if (g_Ctoc(str, buf, sizeof(buf)))
 			return(NULL);
 	}
 
@@ -838,7 +841,7 @@ g_lstat(fn, sb, pglob)
 {
 	char buf[MAXPATHLEN];
 
-	if (g_Ctoc(fn, buf, buf+sizeof(buf)))
+	if (g_Ctoc(fn, buf, sizeof(buf)))
 		return(-1);
 	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
 		return((*pglob->gl_lstat)(buf, sb));
@@ -853,7 +856,7 @@ g_stat(fn, sb, pglob)
 {
 	char buf[MAXPATHLEN];
 
-	if (g_Ctoc(fn, buf, buf+sizeof(buf)))
+	if (g_Ctoc(fn, buf, sizeof(buf)))
 		return(-1);
 	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
 		return((*pglob->gl_stat)(buf, sb));
@@ -873,17 +876,17 @@ g_strchr(str, ch)
 }
 
 static int
-g_Ctoc(str, buf, ebuf)
+g_Ctoc(str, buf, len)
 	register const Char *str;
-	char *buf, *ebuf;
+	char *buf;
+	u_int len;
 {
-	register char *dc;
 
-	for (dc = buf; dc < ebuf && (*dc++ = *str++) != EOS;)
-		continue;
-	if (dc >= ebuf)
-		return (1);
-	return (0);
+	while (len--) {
+		if ((*buf++ = *str++) == EOS)
+			return (0);
+	}
+	return (1);
 }
 
 #ifdef DEBUG
diff --git a/openbsd-compat/strlcat.c b/openbsd-compat/strlcat.c
index 10ad9e71..7631d969 100644
--- a/openbsd-compat/strlcat.c
+++ b/openbsd-compat/strlcat.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $	*/
+/*	$OpenBSD: strlcat.c,v 1.5 2001/01/13 16:17:24 millert Exp $	*/
 
 /*
  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
@@ -31,7 +31,7 @@
 #ifndef HAVE_STRLCAT
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $";
+static char *rcsid = "$OpenBSD: strlcat.c,v 1.5 2001/01/13 16:17:24 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -40,8 +40,9 @@ static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp
 /*
  * Appends src to string dst of size siz (unlike strncat, siz is the
  * full size of dst, not space left).  At most siz-1 characters
- * will be copied.  Always NUL terminates (unless siz == 0).
- * Returns strlen(src); if retval >= siz, truncation occurred.
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(initial dst) + strlen(src); if retval >= siz,
+ * truncation occurred.
  */
 size_t strlcat(dst, src, siz)
 	char *dst;
@@ -54,7 +55,7 @@ size_t strlcat(dst, src, siz)
 	size_t dlen;
 
 	/* Find the end of dst and adjust bytes left but don't go past end */
-	while (*d != '\0' && n-- != 0)
+	while (n-- != 0 && *d != '\0')
 		d++;
 	dlen = d - dst;
 	n = siz - dlen;
diff --git a/openbsd-compat/vis.c b/openbsd-compat/vis.c
index f49277eb..7eb2d6cd 100644
--- a/openbsd-compat/vis.c
+++ b/openbsd-compat/vis.c
@@ -32,7 +32,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: vis.c,v 1.5 2000/07/19 15:25:13 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: vis.c,v 1.6 2000/11/21 00:47:28 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include "includes.h"
@@ -40,18 +40,20 @@ static char rcsid[] = "$OpenBSD: vis.c,v 1.5 2000/07/19 15:25:13 deraadt Exp $";
 #ifndef HAVE_VIS
 
 #define	isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
+#define isvisible(c)	(((u_int)(c) <= UCHAR_MAX && isascii((u_char)(c)) && \
+				isgraph((u_char)(c))) ||		     \
+				((flag & VIS_SP) == 0 && (c) == ' ') ||	     \
+				((flag & VIS_TAB) == 0 && (c) == '\t') ||    \
+				((flag & VIS_NL) == 0 && (c) == '\n') ||     \
+				((flag & VIS_SAFE) &&			     \
+				((c) == '\b' || (c) == '\007' || (c) == '\r')))
 
 /*
  * vis - visually encode characters
  */
 char *vis(char *dst, int c, int flag, int nextc)
 {
-	if (((u_int)c <= UCHAR_MAX && isascii((u_char)c) &&
-	    isgraph((u_char)c)) ||
-	   ((flag & VIS_SP) == 0 && c == ' ') ||
-	   ((flag & VIS_TAB) == 0 && c == '\t') ||
-	   ((flag & VIS_NL) == 0 && c == '\n') ||
-	   ((flag & VIS_SAFE) && (c == '\b' || c == '\007' || c == '\r'))) {
+	if (isvisible(c)) {
 		*dst++ = c;
 		if (c == '\\' && (flag & VIS_NOSLASH) == 0)
 			*dst++ = '\\';