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luci-lib-nixio: pass exact sockaddr length to getnameinfo()

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Musl libc requires the length parameter of getnameinfo() to be exactly
`sizeof(struct sockaddr_in)` or `sizeof(struct sockaddr_in6)`, depending on
the passed sockaddr family.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
This commit is contained in:
Jo-Philipp Wich 2015-07-30 22:16:47 +02:00
parent 69ecfff002
commit 376f038726
1 changed files with 3 additions and 1 deletions
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4
libs/luci-lib-nixio/src/address.c
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@ -331,7 +331,9 @@ static int nixio_getnameinfo(lua_State *L) {
nixio__addr_write(&addr, (struct sockaddr *)&saddr);
int res = getnameinfo((struct sockaddr *)&saddr, sizeof(saddr),
int res = getnameinfo((struct sockaddr *)&saddr,
(saddr.ss_family == AF_INET)
? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6),
host, sizeof(host), NULL, 0, NI_NAMEREQD);
#ifdef __linux__