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dirmngr: dns: Fix allocation of string buffer in stack.

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* dirmngr/dns.h (dns_strsection, dns_strclass)
(dns_strtype): Change APIs.
* dirmngr/dns.c (dns_p_lines): Use __dst for dns_strsection.
(dns_rr_print): Use __dst for dns_strclass and dns_strtype.
(dns_trace_dump): Likewise.
(dns_ai_print): Use __dst for dns_strtype.
(dns_strsection): Add an argument __dst for storage.
(dns_strclass, dns_strtype): Likewise.
(parse_packet): Use __dst for dns_strsection.
(send_query): Use __dst for dns_strtype.
(isection): Use __dst for dns_strsection.
(iclass): Use __dst for dns_strclass.
(itype): Use __dst for dns_strtype.

--

Backport master commit of:
	30eef28bc0

GnuPG-bug-id: 4934
Reported-by: Tomas Mraz
Fixes-commit: ff7d01fc6d
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2020-05-20 19:44:38 +09:00
parent c6324ee07a
commit ab724d3206
2 changed files with 32 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

6
dirmngr/dns.h
View file

@ -272,15 +272,15 @@ enum dns_rcode {
*/
#define DNS_STRMAXLEN 47 /* "QUESTION|ANSWER|AUTHORITY|ADDITIONAL" */
DNS_PUBLIC const char *dns_strsection(enum dns_section);
DNS_PUBLIC const char *dns_strsection(enum dns_section, char *);
DNS_PUBLIC enum dns_section dns_isection(const char *);
DNS_PUBLIC const char *dns_strclass(enum dns_class);
DNS_PUBLIC const char *dns_strclass(enum dns_class, char *);
DNS_PUBLIC enum dns_class dns_iclass(const char *);
DNS_PUBLIC const char *dns_strtype(enum dns_type);
DNS_PUBLIC const char *dns_strtype(enum dns_type, char *);
DNS_PUBLIC enum dns_type dns_itype(const char *);