nano

commit ac31669ec3884cb7254cb4d2e249c600e7172887
parent 86c08560ad45fd905c49a9cb9eeee10c5af31bb3
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Fri, 25 May 2018 19:25:11 +0200

linter: don't try to access absent stat info, as that gives a crash

This fixes https://savannah.gnu.org/bugs/?53981.

Diffstat:
M
src/text.c
 | 
10
++++++----

1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/src/text.c b/src/text.c
@@ -3267,16 +3267,18 @@ void do_linter(void)
 		struct stat lintfileinfo;
 
 		if (stat(curlint->filename, &lintfileinfo) != -1 &&
-					openfile->current_stat->st_ino != lintfileinfo.st_ino) {
+					(openfile->current_stat == NULL ||
+					openfile->current_stat->st_ino != lintfileinfo.st_ino)) {
 #ifdef ENABLE_MULTIBUFFER
 			const openfilestruct *started_at = openfile;
 
 			openfile = openfile->next;
-			while (openfile != started_at &&
-						openfile->current_stat->st_ino != lintfileinfo.st_ino)
+			while (openfile != started_at && (openfile->current_stat == NULL ||
+						openfile->current_stat->st_ino != lintfileinfo.st_ino))
 				openfile = openfile->next;
 
-			if (openfile->current_stat->st_ino != lintfileinfo.st_ino) {
+			if (openfile->current_stat == NULL ||
+						openfile->current_stat->st_ino != lintfileinfo.st_ino) {
 				char *msg = charalloc(1024 + strlen(curlint->filename));
 				int i;