use skip_whitespace where appropriate

editors/awk.c

@@ -1470,7 +1470,7 @@ static int awk_split(char *s, node *spl, char **slist)
 		}
 	} else {				/* space split */
 		while (*s) {
-			while (isspace(*s)) s++;
+			s = skip_whitespace(s);
 			if (! *s) break;
 			n++;
 			while (*s && !isspace(*s))

editors/sed.c

@@ -420,7 +420,7 @@ static char *parse_cmd_args(sed_cmd_t *sed_cmd, char *cmdstr)
 	} else if (strchr(":btT", sed_cmd->cmd)) {
 		int length;
 
-		while(isspace(*cmdstr)) cmdstr++;
+		cmdstr = skip_whitespace(cmdstr);
 		length = strcspn(cmdstr, semicolon_whitespace);
 		if (length) {
 			sed_cmd->string = xstrndup(cmdstr, length);
@@ -517,7 +517,7 @@ static void add_cmd(char *cmdstr)
 		}
 
 		/* skip whitespace before the command */
-		while (isspace(*cmdstr)) cmdstr++;
+		cmdstr = skip_whitespace(cmdstr);
 
 		/* Check for inversion flag */
 		if (*cmdstr == '!') {
@@ -525,7 +525,7 @@ static void add_cmd(char *cmdstr)
 			cmdstr++;
 
 			/* skip whitespace before the command */
-			while (isspace(*cmdstr)) cmdstr++;
+			cmdstr = skip_whitespace(cmdstr);
 		}
 
 		/* last part (mandatory) will be a command */
@@ -1167,15 +1167,23 @@ int sed_main(int argc, char **argv)
 		FILE *file;
 
 		for (i = optind; i < argc; i++) {
+			struct stat statbuf;
+			int nonstdoutfd;
+
 			if(!strcmp(argv[i], "-") && !bbg.in_place) {
 				add_input_file(stdin);
 				process_files();
-			} else {
+				continue;
+			}
 			file = bb_wfopen(argv[i], "r");
-				if (file) {
+			if (!file) {
-					if(bbg.in_place) {
+				status = EXIT_FAILURE;
-						struct stat statbuf;
+				continue;
-						int nonstdoutfd;
+			}
+			if(!bbg.in_place) {
+				add_input_file(file);
+				continue;
+			}
 
 			bbg.outname=xstrndup(argv[i],strlen(argv[i])+6);
 			strcat(bbg.outname,"XXXXXX");
@@ -1196,11 +1204,6 @@ int sed_main(int argc, char **argv)
 			rename(bbg.outname,argv[i]);
 			free(bbg.outname);
 			bbg.outname=0;
-					} else add_input_file(file);
-				} else {
-					status = EXIT_FAILURE;
-				}
-			}
 		}
 		if(bbg.input_file_count>bbg.current_input_file) process_files();
 	}

miscutils/dc.c

@@ -180,9 +180,9 @@ static void stack_machine(const char *argument)
 static char *get_token(char **buffer)
 {
 	char *start = NULL;
-	char *current = *buffer;
+	char *current;
 
-	while (isspace(*current)) { current++; }
+	current = skip_whitespace(*buffer);
 	if (*current != 0) {
 		start = current;
 		while (!isspace(*current) && *current != 0) { current++; }

modutils/modprobe.c

@@ -76,15 +76,13 @@ static int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
 {
 	char *tag, *value;
 
-	while ( isspace ( *buffer ))
+	buffer = skip_whitespace ( buffer );
-		buffer++;
 	tag = value = buffer;
 	while ( !isspace ( *value ))
 		if (!*value) return 0;
 		else value++;
 	*value++ = 0;
-	while ( isspace ( *value ))
+	value = skip_whitespace ( value );
-		value++;
 	if (!*value) return 0;
 
 	*ptag = tag;
@@ -311,11 +309,9 @@ static void include_conf ( struct dep_t **first, struct dep_t **current, char *b
 				}
 			}
 			else if (( strncmp ( buffer, "include", 7 ) == 0 ) && isspace ( buffer [7] )) {
+				int fdi; char *filename;
 
-				int fdi; char *filename = buffer + 8;
+				filename = skip_whitespace ( buffer + 8 );
-
-				while ( isspace ( *filename ))
-					filename++;
 
 				if (( fdi = open ( filename, O_RDONLY )) >= 0 ) {
 					include_conf(first, current, buffer, buflen, fdi);

networking/ifupdown.c

@@ -572,10 +572,7 @@ static char *next_word(char **buf)
 	}
 
 	/* Skip over leading whitespace */
-	word = *buf;
+	word = skip_whitespace(*buf);
-	while (isspace(*word)) {
-		++word;
-	}
 
 	/* Skip over comments */
 	if (*word == '#') {
@@ -712,9 +709,7 @@ static struct interfaces_file_t *read_interfaces(const char *filename)
 			}
 
 			/* ship any trailing whitespace */
-			while (isspace(*buf_ptr)) {
+			buf_ptr = skip_whitespace(buf_ptr);
-				++buf_ptr;
-			}
 
 			if (buf_ptr[0] != '\0') {
 				bb_error_msg("too many parameters \"%s\"", buf);

networking/wget.c

@@ -302,7 +302,7 @@ int wget_main(int argc, char **argv)
 
 			s = buf;
 			while (*s != '\0' && !isspace(*s)) ++s;
-			while (isspace(*s)) ++s;
+			s = skip_whitespace(s);
 			// FIXME: no error check
 			// xatou wouldn't work: "200 OK"
 			status = atoi(s);

shell/bbsh.c

@@ -119,7 +119,7 @@ static char *parse_pipeline(char *cmdline, struct pipeline *line)
 		char *end;
 
 		// Skip leading whitespace and detect end of line.
-		while (isspace(*start)) start++;
+		start = skip_whitespace(start);
 		if (!*start || *start=='#') {
 			if (ENABLE_BBSH_JOBCTL) line->cmdlinelen = start-cmdline;
 			return 0;

util-linux/mount.c

@@ -203,8 +203,7 @@ static llist_t *get_block_backed_filesystems(void)
 		while ((buf = xmalloc_getline(f)) != 0) {
 			if (!strncmp(buf, "nodev", 5) && isspace(buf[5]))
 				continue;
-			fs = buf;
+			fs = skip_whitespace(buf);
-			while (isspace(*fs)) fs++;
 			if (*fs=='#' || *fs=='*' || !*fs) continue;
 
 			llist_add_to_end(&list, xstrdup(fs));