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argp-standalone: fix segfault in canon_doc_option

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Backported from glibc.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This commit is contained in:
Stijn Tintel 2020-05-03 20:31:30 +03:00
parent 49ab97ca86
commit 3a79e3b185
1 changed files with 14 additions and 0 deletions
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14
package/libs/argp-standalone/patches/900-fix-segfault-in_canon_doc_option.patch Normal file
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@ -0,0 +1,14 @@
--- a/argp-help.c
+++ b/argp-help.c
@@ -777,9 +777,9 @@ hol_entry_cmp (const struct hol_entry *e
const char *long2 = hol_entry_first_long (entry2);
if (doc1)
- doc1 = canon_doc_option (&long1);
+ doc1 = long1 != NULL && canon_doc_option (&long1);
if (doc2)
- doc2 = canon_doc_option (&long2);
+ doc2 = long2 != NULL && canon_doc_option (&long2);
if (doc1 != doc2)
/* `documentation' options always follow normal options (or