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$NetBSD$
--- src/appl/telnet/telnetd/state.c.orig 2002-11-15 21:21:51.000000000 +0100
+++ src/appl/telnet/telnetd/state.c
@@ -1665,7 +1665,8 @@ static int envvarok(varp)
strcmp(varp, "RESOLV_HOST_CONF") && /* linux */
strcmp(varp, "NLSPATH") && /* locale stuff */
strncmp(varp, "LC_", strlen("LC_")) && /* locale stuff */
- strcmp(varp, "IFS")) {
+ strcmp(varp, "IFS") &&
+ !strchr(varp, '-')) {
return 1;
} else {
syslog(LOG_INFO, "Rejected the attempt to modify the environment variable \"%s\"", varp);
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