| Skip Navigation Links | |
| Exit Print View | |
|
Oracle Solaris Security for Developers Guide |
1. Oracle Solaris Security for Developers (Overview)
2. Developing Privileged Applications
3. Writing PAM Applications and Services
4. Writing Applications That Use GSS-API
GSSAPI Client Example Overview
GSSAPI Client Example Structure
Running the GSSAPI Client Example
GSSAPI Client Example: main() Function
Establishing a Security Context With the Server
Translating a Service Name into GSS-API Format
Establishing a Security Context for GSS-API
Miscellaneous GSSAPI Context Operations on the Client Side
Wrapping and Sending a Message
Reading and Verifying a Signature Block From a GSS-API Client
7. Writing Applications That Use SASL
8. Introduction to the Oracle Solaris Cryptographic Framework
9. Writing User-Level Cryptographic Applications and Providers
10. Using the Smart Card Framework
A. Sample C-Based GSS-API Programs
D. Source Code for SASL Example
The call_server() function uses the following code to make the connection with the server:
if ((s = connect_to_server(host, port)) < 0)
return -1;
s is a file descriptor, the int that is initially returned by a call to socket().
connect_to_server() is a simple function outside GSS-API that uses sockets to create a connection. The source code for connect_to_server() is shown in the following example.
Note - The source code for this example is also available through the Sun download center. See http://www.sun.com/download/products.xml?id=41912db5.
Example 5-2 connect_to_server() Function
int connect_to_server(host, port)
char *host;
u_short port;
{
struct sockaddr_in saddr;
struct hostent *hp;
int s;
if ((hp = gethostbyname(host)) == NULL) {
fprintf(stderr, "Unknown host: %s\n", host);
return -1;
}
saddr.sin_family = hp->h_addrtype;
memcpy((char *)&saddr.sin_addr, hp->h_addr, sizeof(saddr.sin_addr));
saddr.sin_port = htons(port);
if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("creating socket");
return -1;
}
if (connect(s, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) {
perror("connecting to server");
(void) close(s);
return -1;
}
return s;
}
|