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bcpy->memcpy, and don't trash memory if

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hp->h_length is > sizeof(struct sockaddr_in);
This commit is contained in:
christos 1998-11-06 20:00:07 +00:00
parent 81c93f4c32
commit 501608c08c
1 changed files with 5 additions and 3 deletions
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8
usr.bin/tn3270/api/api_bsd.c
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@ -1,4 +1,4 @@
/* $NetBSD: api_bsd.c,v 1.6 1998/03/10 13:49:55 christos Exp $ */
/* $NetBSD: api_bsd.c,v 1.7 1998/11/06 20:00:07 christos Exp $ */
/*-
* Copyright (c) 1988 The Regents of the University of California.
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)api_bsd.c 4.2 (Berkeley) 4/26/91";
#else
__RCSID("$NetBSD: api_bsd.c,v 1.6 1998/03/10 13:49:55 christos Exp $");
__RCSID("$NetBSD: api_bsd.c,v 1.7 1998/11/06 20:00:07 christos Exp $");
#endif
#endif /* not lint */
@ -116,7 +116,9 @@ char *string; /* if non-zero, where to connect to */
fprintf(stderr, "%s specifies bad host name.\n", string);
return -1;
}
bcopy(hp->h_addr, (char *)&server.sin_addr, hp->h_length);
if (sizeof(server.sin_addr.s_addr) < hp->h_length)
hp->h_length = sizeof(server.sin_addr.s_addr);
(void)memcpy(&server.sin_addr.s_addr, hp->h_addr, hp->h_length);
server.sin_port = htons(port);
if (connect(sock, (struct sockaddr *)&server, sizeof server) < 0) {