sdl->sdl_len in sockaddr_dl can be longer than
sizeof(struct sockaddr_dl).
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parent
a096257482
commit
c56e91b345
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=290318
@ -122,7 +122,8 @@ getnameinfo(const struct sockaddr *sa, socklen_t salen,
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afd = find_afd(sa->sa_family);
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if (afd == NULL)
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return (EAI_FAMILY);
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if (sa->sa_family == PF_LOCAL) {
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switch (sa->sa_family) {
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case PF_LOCAL:
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/*
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* PF_LOCAL uses variable sa->sa_len depending on the
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* content length of sun_path. Require 1 byte in
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@ -132,8 +133,17 @@ getnameinfo(const struct sockaddr *sa, socklen_t salen,
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salen <= afd->a_socklen -
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sizeofmember(struct sockaddr_un, sun_path))
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return (EAI_FAIL);
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} else if (salen != afd->a_socklen)
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return (EAI_FAIL);
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break;
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case PF_LINK:
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if (salen <= afd->a_socklen -
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sizeofmember(struct sockaddr_dl, sdl_data))
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return (EAI_FAIL);
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break;
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default:
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if (salen != afd->a_socklen)
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return (EAI_FAIL);
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break;
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}
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return ((*afd->a_func)(afd, sa, salen, host, hostlen,
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serv, servlen, flags));
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