Use LIBSSH2_HOSTKEY_HASH_SHA1 instead of _MD5 in examples and tests

MD5 support is optional and may not always be available, while SHA1 is both
required and recommended.

example/direct_tcpip.c

@@ -126,9 +126,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++)
+    for(i = 0; i < 20; i++)
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     fprintf(stderr, "\n");
 

example/scp.c

@@ -103,9 +103,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     }
     fprintf(stderr, "\n");

example/scp_nonblock.c

@@ -160,9 +160,9 @@ int main(int argc, char *argv[])
         * may have it hard coded, may go to a file, may present it to the
         * user, that's your call
         */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     }
     fprintf(stderr, "\n");

example/scp_write.c

@@ -118,9 +118,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     }
     fprintf(stderr, "\n");

example/scp_write_nonblock.c

@@ -126,9 +126,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     }
     fprintf(stderr, "\n");

example/sftp.c

@@ -136,9 +136,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     }
     fprintf(stderr, "\n");

example/sftp_RW_nonblock.c

@@ -109,9 +109,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/sftp_mkdir.c

@@ -105,9 +105,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/sftp_mkdir_nonblock.c

@@ -108,9 +108,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/sftp_nonblock.c

@@ -161,9 +161,9 @@ int main(int argc, char *argv[])
         * may have it hard coded, may go to a file, may present it to the
         * user, that's your call
         */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
     }
     fprintf(stderr, "\n");

example/sftp_write.c

@@ -123,9 +123,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/sftp_write_nonblock.c

@@ -127,9 +127,9 @@ int main(int argc, char *argv[])
      * have it hard coded, may go to a file, may present it to the user,
      * that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/sftpdir.c

@@ -105,9 +105,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/sftpdir_nonblock.c

@@ -111,9 +111,9 @@ int main(int argc, char *argv[])
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/ssh2.c

@@ -121,9 +121,9 @@ int main(int argc, char *argv[])
      * hard coded, may go to a file, may present it to the user, that's your
      * call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

example/ssh2_agent.c

@@ -150,9 +150,9 @@ int main(int argc, char *argv[])
      * hard coded, may go to a file, may present it to the user, that's your
      * call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");

tests/ssh2.c

@@ -90,9 +90,9 @@ int main(int argc, char *argv[])
      * The first thing to do is check the hostkey's fingerprint against our known hosts
      * Your app may have it hard coded, may go to a file, may present it to the user, that's your call
      */
-    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
+    fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     printf("Fingerprint: ");
-    for(i = 0; i < 16; i++) {
+    for(i = 0; i < 20; i++) {
         printf("%02X ", (unsigned char)fingerprint[i]);
     }
     printf("\n");