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Zero the trusted_interface buffer before starting parsing.

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Print a warning if a requested interface name is longer than
IFNAMSIZ.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
This commit is contained in:
Robert Watson 2002-10-28 19:16:44 +00:00
parent 8b3a843438
commit ee3bf1710a
1 changed files with 6 additions and 0 deletions
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6
sys/security/mac_biba/mac_biba.c
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@ -1159,6 +1159,7 @@ mac_biba_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel)
!strvalid(trusted_interfaces, sizeof(trusted_interfaces)))
goto set;
bzero(tiflist, sizeof(tiflist));
for (p = trusted_interfaces, q = tiflist; *p != '\0'; p++, q++)
if(*p != ' ' && *p != '\t')
*q = *p;
@ -1175,6 +1176,11 @@ mac_biba_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel)
grade = MAC_BIBA_TYPE_HIGH;
break;
}
} else {
*p = '\0';
printf("mac_biba warning: interface name "
"\"%s\" is too long (must be < %d)\n",
q, IFNAMSIZ);
}
if (*p == '\0')
break;