apply five post-1.9.1 patches

editors/patch.c

@@ -71,12 +71,6 @@ static char *extract_filename(char *line, int patch_level)
 	return xstrdup(filename_start_ptr);
 }
 
-static int file_doesnt_exist(const char *filename)
-{
-	struct stat statbuf;
-	return stat(filename, &statbuf);
-}
-
 int patch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int patch_main(int argc, char **argv)
 {
@@ -84,7 +78,8 @@ int patch_main(int argc, char **argv)
 	char *patch_line;
 	int ret;
 	FILE *patch_file = NULL;
-
+	struct stat saved_stat;
+	
 	{
 		char *p, *i;
 		ret = getopt32(argv, "p:i:", &p, &i);
@@ -134,8 +129,9 @@ int patch_main(int argc, char **argv)
 		}
 		new_filename = extract_filename(patch_line, patch_level);
 		free(patch_line);
-
-		if (file_doesnt_exist(new_filename)) {
+		
+		/* Get access rights from the file to be patched, -1 file does not exist */
+		if (stat(new_filename, &saved_stat)) {
 			char *line_ptr;
 			/* Create leading directories */
 			line_ptr = strrchr(new_filename, '/');
@@ -155,9 +151,10 @@ int patch_main(int argc, char **argv)
 						backup_filename);
 			}
 			dst_stream = xfopen(new_filename, "w");
+			fchmod(fileno(dst_stream), saved_stat.st_mode);
 		}
 
-		if ((backup_filename == NULL) || file_doesnt_exist(original_filename)) {
+		if ((backup_filename == NULL) || stat(original_filename, &saved_stat)) {
 			src_stream = NULL;
 		} else {
 			if (strcmp(original_filename, new_filename) == 0) {

init/init.c

@@ -225,8 +225,22 @@ static void console_init(void)
 		}
 		messageD(L_LOG, "console='%s'", s);
 	} else {
-		/* Make sure fd 0,1,2 are not closed */
-		bb_sanitize_stdio();
+		/* Make sure fd 0,1,2 are not closed
+		 * (so that they won't be used by future opens) */
+
+		/* bb_sanitize_stdio(); - WRONG.
+		 * Fail if "/dev/null" doesnt exist, and for init
+		 * this is a real possibility! Open code it instead. */
+
+		int fd = open(bb_dev_null, O_RDWR);
+		if (fd < 0) {
+			/* Give me _ANY_ open descriptor! */
+			fd = xopen("/", O_RDONLY); /* we don't believe this can fail */
+		}
+    		while ((unsigned)fd < 2)
+            		fd = dup(fd);
+		if (fd > 2)
+			close (fd);
 	}
 
 	s = getenv("TERM");

libbb/lineedit.c

@@ -246,7 +246,15 @@ static void input_backward(unsigned num)
 	if (cmdedit_x >= num) {
 		cmdedit_x -= num;
 		if (num <= 4) {
-			printf("\b\b\b\b" + (4-num));
+			/* This is longer by 5 bytes on x86.
+			 * Also gets mysteriously
+			 * miscompiled for some ARM users.
+			 * printf(("\b\b\b\b" + 4) - num);
+			 * return;
+			 */
+			do {
+				bb_putchar('\b');
+			} while (--num);
 			return;
 		}
 		printf("\033[%uD", num);

networking/httpd.c

@@ -1950,7 +1950,7 @@ static void handle_incoming_and_exit(const len_and_sockaddr *fromAddr)
 			if ((STRNCASECMP(iobuf, "Content-length:") == 0)) {
 				/* extra read only for POST */
 				if (prequest != request_GET) {
-					tptr = iobuf + sizeof("Content-length:") - 1;
+					tptr = tptr = skip_whitespace(iobuf + sizeof("Content-length:") - 1);
 					if (!tptr[0])
 						send_headers_and_exit(HTTP_BAD_REQUEST);
 					errno = 0;

networking/udhcp/files.c

@@ -167,7 +167,7 @@ static int read_opt(const char *const_line, void *arg)
 	if (!opt)
 		return 0;
 
-	idx = index_in_strings(opt, dhcp_option_strings); /* NB: was strcasecmp! */
+	idx = index_in_strings(dhcp_option_strings, opt); /* NB: was strcasecmp! */
 	if (idx < 0)
 		return 0;
 	option = &dhcp_options[idx];