X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/8a9977e54db756281cf0d9f4a8322ce24b001a61..9916cc1e8d26f1caef36fc1ee525819e6ca62f42:/cmdgen.c

diff --git a/cmdgen.c b/cmdgen.c
index dfca9dce..9aa585f3 100644
--- a/cmdgen.c
+++ b/cmdgen.c
@@ -640,6 +640,11 @@ int main(int argc, char **argv)
 
 	random_ref();
 	entropy = get_random_data(bits / 8);
+	if (!entropy) {
+	    fprintf(stderr, "puttygen: failed to collect entropy, "
+		    "could not generate key\n");
+	    return 1;
+	}
 	random_add_heavynoise(entropy, bits / 8);
 	memset(entropy, 0, bits/8);
 	sfree(entropy);
@@ -893,7 +898,7 @@ int main(int argc, char **argv)
 	    assert(ssh1key);
 
 	    if (outfile)
-		fp = f_open(outfilename, "w");
+		fp = f_open(outfilename, "w", FALSE);
 	    else
 		fp = stdout;
 	    dec1 = bignum_decimal(ssh1key->exponent);
@@ -951,7 +956,7 @@ int main(int argc, char **argv)
 		*p++ = '\0';
 
 	    if (outfile)
-		fp = f_open(outfilename, "w");
+		fp = f_open(outfilename, "w", FALSE);
 	    else
 		fp = stdout;
 	    fprintf(fp, "%s\n", buffer);
@@ -981,7 +986,7 @@ int main(int argc, char **argv)
 	    }
 
 	    if (outfile)
-		fp = f_open(outfilename, "w");
+		fp = f_open(outfilename, "w", FALSE);
 	    else
 		fp = stdout;
 	    fprintf(fp, "%s\n", fingerprint);