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examples: Reformat authenticaton.c

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Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider
2018-09-20 14:32:26 +02:00
parent a30d542207
commit 4c47719d98
1 changed files with 74 additions and 71 deletions
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145
examples/authentication.c
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@@ -24,7 +24,8 @@ clients must be made or how a client should react.
#include <libssh/libssh.h> #include <libssh/libssh.h>
#include "examples_common.h" #include "examples_common.h"
int authenticate_kbdint(ssh_session session, const char *password) { int authenticate_kbdint(ssh_session session, const char *password)
{
int err; int err;
err = ssh_userauth_kbdint(session, NULL, NULL); err = ssh_userauth_kbdint(session, NULL, NULL);
@@ -99,78 +100,80 @@ int authenticate_kbdint(ssh_session session, const char *password) {
return err; return err;
} }
static void error(ssh_session session){ static void error(ssh_session session)
fprintf(stderr,"Authentication failed: %s\n",ssh_get_error(session)); {
fprintf(stderr,"Authentication failed: %s\n",ssh_get_error(session));
} }
int authenticate_console(ssh_session session){ int authenticate_console(ssh_session session)
int rc; {
int method; int rc;
char password[128] = {0}; int method;
char *banner; char password[128] = {0};
char *banner;
// Try to authenticate
rc = ssh_userauth_none(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
}
method = ssh_userauth_list(session, NULL);
while (rc != SSH_AUTH_SUCCESS) {
if (method & SSH_AUTH_METHOD_GSSAPI_MIC){
rc = ssh_userauth_gssapi(session);
if(rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
// Try to authenticate with public key first
if (method & SSH_AUTH_METHOD_PUBLICKEY) {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
// Try to authenticate with keyboard interactive";
if (method & SSH_AUTH_METHOD_INTERACTIVE) {
rc = authenticate_kbdint(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
if (ssh_getpass("Password: ", password, sizeof(password), 0, 0) < 0) {
return SSH_AUTH_ERROR;
}
// Try to authenticate with password
if (method & SSH_AUTH_METHOD_PASSWORD) {
rc = ssh_userauth_password(session, NULL, password);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
memset(password, 0, sizeof(password));
}
banner = ssh_get_issue_banner(session);
if (banner) {
printf("%s\n",banner);
ssh_string_free_char(banner);
}
// Try to authenticate
rc = ssh_userauth_none(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc; return rc;
}
method = ssh_userauth_list(session, NULL);
while (rc != SSH_AUTH_SUCCESS) {
if (method & SSH_AUTH_METHOD_GSSAPI_MIC){
rc = ssh_userauth_gssapi(session);
if(rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
// Try to authenticate with public key first
if (method & SSH_AUTH_METHOD_PUBLICKEY) {
rc = ssh_userauth_publickey_auto(session, NULL, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
// Try to authenticate with keyboard interactive";
if (method & SSH_AUTH_METHOD_INTERACTIVE) {
rc = authenticate_kbdint(session, NULL);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
if (ssh_getpass("Password: ", password, sizeof(password), 0, 0) < 0) {
return SSH_AUTH_ERROR;
}
// Try to authenticate with password
if (method & SSH_AUTH_METHOD_PASSWORD) {
rc = ssh_userauth_password(session, NULL, password);
if (rc == SSH_AUTH_ERROR) {
error(session);
return rc;
} else if (rc == SSH_AUTH_SUCCESS) {
break;
}
}
memset(password, 0, sizeof(password));
}
banner = ssh_get_issue_banner(session);
if (banner) {
printf("%s\n",banner);
ssh_string_free_char(banner);
}
return rc;
} }