Another nice cleanup from Larry. This adds a new last_char_is() function and

uses it to avoid possible buffer underruns whn strlen is zero, and avoid the
possible space-hogging inline of strlen() in several cases.
 -Erik

archival/dpkg.c

@@ -583,7 +583,7 @@ static int status_merge(void *status, package_t *pkgs)
 	 */
 	if ((fin = fopen(statusfile, "r")) != NULL) {
 		while (((line = get_line_from_file(fin)) != NULL) && !feof(fin)) { 
-			line[strlen(line) - 1] = '\0'; /* trim newline */
+			chomp(line); /* trim newline */
 			/* If we see a package header, find out if it's a package
 			 * that we have processed. if so, we skip that block for
 			 * now (write it at the end).

archival/tar.c

@@ -706,7 +706,7 @@ static int readTarFile(int tarFd, int extractFlag, int listFlag,
 			case REGTYPE0:
 				/* If the name ends in a '/' then assume it is
 				 * supposed to be a directory, and fall through */
-				if (header.name[strlen(header.name)-1] != '/') {
+				if (last_char_is(header.name,'/')) {
 					if (tarExtractRegularFile(&header, extractFlag, tostdoutFlag)==FALSE)
 						errorFlag=TRUE;
 					break;