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check for balance between BEGIN: and END: - ics2txt - convert icalendar .ics file to plain text
HTML git clone git://bitreich.org/ics2txt git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/ics2txt
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---
DIR commit 58d91e5e80aea1ab98f675ccc4530f26a9659162
DIR parent 92a5d0067b717710eb607c0465a8a60d4b4c8655
HTML Author: Josuah Demangeon <me@josuah.net>
Date: Wed, 16 Jun 2021 23:17:45 +0200
check for balance between BEGIN: and END:
Diffstat:
M ical.c | 7 +++++++
1 file changed, 7 insertions(+), 0 deletions(-)
---
DIR diff --git a/ical.c b/ical.c
@@ -156,6 +156,8 @@ hook_block_begin(IcalParser *p, char *name)
static int
hook_block_end(IcalParser *p, char *name)
{
+ if (p->current == p->stack)
+ return ical_err(p, "more END: than BEGIN:");
if (strcasecmp(p->current->name, name) != 0)
return ical_err(p, "mismatching BEGIN: and END:");
p->current--;
@@ -319,7 +321,12 @@ ical_parse(IcalParser *p, FILE *fp)
}
p->linenum += l;
} while (l > 0 && (err = ical_parse_contentline(p, contentline)) == 0);
+
free(contentline);
free(line);
+
+ if (err == 0 && p->current != p->stack)
+ return ical_err(p, "more BEGIN: than END:");
+
return err;
}