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| author | Ulrich Drepper <drepper@redhat.com> | 2000-03-22 18:14:48 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2000-03-22 18:14:48 +0000 |
| commit | 922809a2e3dbb92b6faae17523d055783295cbdc (patch) | |
| tree | 92c4afbb315d765768414d30734aaf6285bf4c42 /inet | |
| parent | ee0835df62285caaa5b3ff8aed5ec15358fd123d (diff) | |
| download | glibc-922809a2e3dbb92b6faae17523d055783295cbdc.tar.gz glibc-922809a2e3dbb92b6faae17523d055783295cbdc.tar.xz glibc-922809a2e3dbb92b6faae17523d055783295cbdc.zip | |
Update.
2000-03-22 Ulrich Drepper <drepper@redhat.com> * inet/getnameinfo.c (getnameinfo): Check that addrlen value is large enough. Patch by YOSHIFUJI Hideaki <yoshfuji@v6.linux.or.jp>. 2000-03-22 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/powerpc/bits/mman.h (MADV_*): Add flags from latest Linux kernel.
Diffstat (limited to 'inet')
| -rw-r--r-- | inet/getnameinfo.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c index 709f9ecbfe..9a0709229e 100644 --- a/inet/getnameinfo.c +++ b/inet/getnameinfo.c @@ -172,8 +172,20 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host, int herrno; char *tmpbuf = alloca (tmpbuflen); struct hostent th; + socklen_t min_addrlen = 0; - if (sa == NULL) + if (sa == NULL || addrlen < sizeof (sa_family_t)) + return -1; + + switch (sa->sa_family) + { + case AF_LOCAL: + min_addrlen = (socklen_t) (((struct sockaddr_un *) NULL)->sun_path); + break; + default: + min_addrlen = __libc_sa_len (sa->sa_family); + } + if (addrlen < min_addrlen) return -1; if (host != NULL && hostlen > 0) |