aniani/irssi
1
0
Fork 0
mirror of https://github.com/irssi/irssi.git synced 2025-01-03 14:56:47 -05:00
Code

Fix oob read on invalid utf8 in term_addstr

Browse Source
This commit is contained in:
Joseph Bisch 2016-12-19 09:31:38 -05:00
parent 1c6695107c
commit 8007e9e61d
No known key found for this signature in database
GPG Key ID: CF08FAC339AB7E8E
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/fe-text/term-terminfo.c
View File

@ -539,9 +539,16 @@ int term_addstr(TERM_WINDOW *window, const char *str)
if (term_type == TERM_TYPE_UTF8) {
while (*ptr != '\0') {
tmp = g_utf8_get_char(ptr);
len += unichar_isprint(tmp) ? mk_wcwidth(tmp) : 1;
ptr = g_utf8_next_char(ptr);
tmp = g_utf8_get_char_validated(ptr, -1);
/* On utf8 error, treat as single byte and try to
continue interpretting rest of string as utf8 */
if (tmp == (gunichar)-1 || tmp == (gunichar)-2) {
len++;
ptr++;
} else {
len += unichar_isprint(tmp) ? mk_wcwidth(tmp) : 1;
ptr = g_utf8_next_char(ptr);
}
}
} else
len = raw_len;