Miscellaneous fixes (lost track).

1 files changed, 82 insertions, 17 deletions

diff --git a/common/compat.c b/common/compat.c
index 54fd760..d3730e0 100644
--- a/common/compat.c
+++ b/common/compat.c
@@ -34,8 +34,37 @@
  * CONTRIBUTORS
  *  Nate Nielsen <nielsen@memberwebs.com>
  *
+ *
+ * PORTIONS FROM OPENBSD: -------------------------------------------------
+ *
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
  */
 
+
+
 #include "usuals.h"
 #include "compat.h"
 
@@ -81,34 +110,70 @@ char* strupr(char* s)
 
 #ifndef HAVE_STRLCPY
 
-#ifndef HAVE_STRNCPY
-#error neither strncpy or strlcpy found
-#endif
-
-void strlcpy(char* dest, const char* src, size_t count)
+size_t strlcpy(char* dst, const char* src, size_t siz)
 {
-        if(count > 0)
-        {
-                strncpy(dest, src, count);
-                dest[count - 1] = 0;
+	char* d = dst;
+    const char* s = src;
+    size_t n = siz;
+
+    /* Copy as many bytes as will fit */
+    if(n != 0 && --n != 0)
+	{
+       	do
+		{
+           	if((*d++ = *s++) == 0)
+               	break;
         }
+		while(--n != 0);
+    }
+
+    /* Not enough room in dst, add NUL and traverse rest of src */
+    if(n == 0)
+	{
+      	if(siz != 0)
+           	*d = '\0';              /* NUL-terminate dst */
+        while (*s++)
+         	;
+    }
+
+    return s - src - 1;    /* count does not include NUL */
 }
+
 #endif
 
 #ifndef HAVE_STRLCAT
 
-#ifndef HAVE_STRNCAT
-#error neither strncat or strlcat found
-#endif
-
-void strlcat(char* dest, const char* src, size_t count)
+size_t strlcat(char* dst, const char* src, size_t siz)
 {
-        if(count > 0)
+    char* d = dst;
+    const char* s = src;
+    size_t n = siz;
+    size_t dlen;
+
+    /* Find the end of dst and adjust bytes left but don't go past end */
+    while(n-- != 0 && *d != '\0')
+     	d++;
+    dlen = d - dst;
+    n = siz - dlen;
+
+    if(n == 0)
+        return dlen + strlen(s);
+    while(*s != '\0')
+    {
+        if(n != 1)
         {
-                strncat(dest, src, count);
-                dest[count - 1] = 0;
+            *d++ = *s;
+            n--;
         }
+
+        s++;
+    }
+
+    *d = '\0';
+
+    return dlen + (s - src);       /* count does not include NUL */
 }
+
 #endif