(main): check return value from des_read_pw_string
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6966 ec53bebd-3082-4978-b11e-865c3cabbd6b
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		@@ -177,7 +177,8 @@ main(int argc, char **argv)
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	/* XXX better value? */
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						/* XXX better value? */
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	salt.saltvalue.data = NULL;
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						salt.saltvalue.data = NULL;
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	salt.saltvalue.length = 0;
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						salt.saltvalue.length = 0;
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	des_read_pw_string(buf, sizeof(buf), "Master key: ", 1);
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						if(des_read_pw_string(buf, sizeof(buf), "Master key: ", 1))
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						    exit(1);
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	krb5_string_to_key_salt(context, key.keytype, buf, salt, &key);
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						krb5_string_to_key_salt(context, key.keytype, buf, salt, &key);
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    }
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					    }
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