generic-library/ssh2
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added selection of authentication method based on what libssh2_userauth_list() returns; added vars for the key files.

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This commit is contained in:
Guenter Knauf 2007-07-19 15:25:46 +00:00
parent 46f59112d9
commit edcfab905a
1 changed files with 20 additions and 7 deletions
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27
example/simple/ssh2.c
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@ -1,5 +1,5 @@
/* /*
* $Id: ssh2.c,v 1.8 2007/07/18 19:31:15 gknauf Exp $ * $Id: ssh2.c,v 1.9 2007/07/19 15:25:46 gknauf Exp $
* *
* Sample showing how to do SSH2 connect. * Sample showing how to do SSH2 connect.
* *
@ -38,7 +38,7 @@
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
unsigned long hostaddr; unsigned long hostaddr;
int sock, i, auth_pw = 1; int sock, i, auth_pw = 0;
struct sockaddr_in sin; struct sockaddr_in sin;
const char *fingerprint; const char *fingerprint;
char *userauthlist; char *userauthlist;
@ -46,6 +46,8 @@ int main(int argc, char *argv[])
LIBSSH2_CHANNEL *channel; LIBSSH2_CHANNEL *channel;
char *username=(char *)"username"; char *username=(char *)"username";
char *password=(char *)"password"; char *password=(char *)"password";
char *keyfile1=(char *)"~/.ssh/id_rsa.pub";
char *keyfile2=(char *)"~/.ssh/id_rsa";
#ifdef WIN32 #ifdef WIN32
WSADATA wsadata; WSADATA wsadata;
@ -101,13 +103,21 @@ int main(int argc, char *argv[])
} }
printf("\n"); printf("\n");
#ifdef TEST_AUTH_LIST auth_pw = 0;
/* check what authentication methods are available */ /* check what authentication methods are available */
userauthlist = libssh2_userauth_list(session, username, sizeof(username)); userauthlist = libssh2_userauth_list(session, username, sizeof(username));
printf("Authentication methods: %s\n", userauthlist); printf("Authentication methods: %s\n", userauthlist);
#endif if (strstr(userauthlist, "password") != NULL) {
auth_pw |= 1;
}
if (strstr(userauthlist, "publickey") != NULL) {
auth_pw |= 2;
}
if (strstr(userauthlist, "keyboard-interactive") != NULL) {
auth_pw |= 4;
}
if (auth_pw) { if (auth_pw & 1) {
/* We could authenticate via password */ /* We could authenticate via password */
if (libssh2_userauth_password(session, username, password)) { if (libssh2_userauth_password(session, username, password)) {
printf("Authentication by password failed.\n"); printf("Authentication by password failed.\n");
@ -115,14 +125,17 @@ int main(int argc, char *argv[])
} else { } else {
printf("Authentication by password succeeded.\n"); printf("Authentication by password succeeded.\n");
} }
} else { } else if (auth_pw & 2) {
/* Or by public key */ /* Or by public key */
if (libssh2_userauth_publickey_fromfile(session, username, "/home/username/.ssh/id_rsa.pub", "/home/username/.ssh/id_rsa", password)) { if (libssh2_userauth_publickey_fromfile(session, username, keyfile1, keyfile2, password)) {
printf("\tAuthentication by public key failed\n"); printf("\tAuthentication by public key failed\n");
goto shutdown; goto shutdown;
} else { } else {
printf("Authentication by public key succeeded.\n"); printf("Authentication by public key succeeded.\n");
} }
} else {
printf("No supported authentication methods found!\n");
goto shutdown;
} }
/* Request a shell */ /* Request a shell */