diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-08-05 15:58:03 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-08-05 15:58:03 +0000 |
| commit | eab91235fe54ebf066133799987dcfc17ede044d (patch) | |
| tree | 91955f70df927dcf987d8d0f2a250013f86c7a67 /lib/libc/net/gethostnamadr.c | |
| parent | 76a9357e18e95fb9a757d7de62d96811d695472a (diff) | |
truncate h_name and h_aliases[] to MAXHOSTNAMELEN
Diffstat (limited to 'lib/libc/net/gethostnamadr.c')
| -rw-r--r-- | lib/libc/net/gethostnamadr.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libc/net/gethostnamadr.c b/lib/libc/net/gethostnamadr.c index a1fdba5f917..29705f7e9e3 100644 --- a/lib/libc/net/gethostnamadr.c +++ b/lib/libc/net/gethostnamadr.c @@ -151,7 +151,10 @@ getanswer(answer, anslen, iquery) } cp += n + QFIXEDSZ; host.h_name = bp; - n = strlen(bp) + 1; + n = strlen(bp); + if (n >= MAXHOSTNAMELEN) + host.h_name[MAXHOSTNAMELEN-1] = '\0'; + n++; bp += n; buflen -= n; } else @@ -200,6 +203,9 @@ getanswer(answer, anslen, iquery) break; cp += n; host.h_name = bp; + n = strlen(host.h_name); + if (n >= MAXHOSTNAMELEN) + host.h_name[MAXHOSTNAMELEN-1] = '\0'; return(&host); } if (iquery || type != T_A) { @@ -226,6 +232,8 @@ getanswer(answer, anslen, iquery) host.h_addrtype = (class == C_IN) ? AF_INET : AF_UNSPEC; if (!iquery) { host.h_name = bp; + if (strlen(bp) >= MAXHOSTNAMELEN) + host.h_name[MAXHOSTNAMELEN-1] = '\0'; bp += strlen(bp) + 1; } } @@ -240,6 +248,8 @@ getanswer(answer, anslen, iquery) break; } bcopy(cp, *hap++ = bp, n); + if (n >= MAXHOSTNAMELEN) + bp[MAXHOSTNAMELEN-1] = '\0'; bp +=n; cp += n; haveanswer++; |