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From: He X <xw897002528@gmail.com>
To: musl@lists.openwall.com
Subject: fallback to no translations when gettext("")
Date: Sat, 4 Mar 2017 16:08:18 +0800	[thread overview]
Message-ID: <CAPG2z0-V-7HD=+TA9zgwHQaVCpf_AHmiU0TBQ0we6iC=woeyFw@mail.gmail.com> (raw)


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following http://www.openwall.com/lists/musl/2017/02/13/8 ,
http://www.openwall.com/lists/musl/2017/03/04/1 and
http://www.openwall.com/lists/musl/2017/02/13/5:

> gnu tar showed me segfaults, because he passed a zero msgid1 causing
__mo_lookup segfault, we should add a check in dcngettext to avoid it(if
(!msgid1) goto notrans;):

 #2  0x00007ffff7d82a6f in dcngettext (domainname=0x6737a0 "tar",
msgid1=0x0, msgid2=0x0, n=1,
    category=5) at src/locale/dcngettext.c:211

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--- musl-1.1.16/src/locale/dcngettext.c	2017-03-04 08:05:45.755115338 +0000
+++ musl-1.1.16/src/locale/dcngettext.c	2017-03-04 08:05:45.755115338 +0000
@@ -121,6 +121,7 @@
 char *dcngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long int n, int category)
 {
+	if (!msgid1) goto notrans;
 	static struct msgcat *volatile cats;
 	struct msgcat *p;
 	struct __locale_struct *loc = CURRENT_LOCALE;
 	const struct __locale_map *lm;

             reply	other threads:[~2017-03-04  8:08 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-04  8:08 He X [this message]
2017-03-23  5:05 ` He X
2017-03-24 18:36   ` Rich Felker
2017-03-25  2:36     ` He X

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