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Using getopt(), real arguments.

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This commit is contained in:
Michael Jumper
2010-09-25 16:04:06 -07:00
parent 3035408f35
commit 61c4df9545
1 changed files with 45 additions and 19 deletions
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64
guacamole/proxy/src/daemon.c
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@@ -96,24 +96,52 @@ int main(int argc, char* argv[]) {
unsigned int client_addr_len; unsigned int client_addr_len;
int connected_socket_fd; int connected_socket_fd;
int listen_port; int listen_port = -1;
char* protocol = NULL;
int client_argc; int client_argc;
char** client_argv; char** client_argv;
char protocol_lib[256] = "libguac_client_"; char protocol_lib[256] = "libguac_client_";
if (argc < 3) { int opt;
fprintf(stderr, "USAGE: %s LISTENPORT PROTOCOL [PROTOCOL OPTIONS]\n", argv[0]);
return 1; /* Parse arguments */
while ((opt = getopt(argc, argv, "l:p:")) != -1) {
if (opt == 'l') {
listen_port = atoi(optarg);
if (listen_port <= 0) {
fprintf(stderr, "Invalid port: %s\n", optarg);
exit(EXIT_FAILURE);
}
}
else if (opt == 'p') {
protocol = optarg;
break;
}
else {
fprintf(stderr, "USAGE: %s [-l LISTENPORT] [-p PROTOCOL [PROTOCOL OPTIONS ...]]\n", argv[0]);
exit(EXIT_FAILURE);
}
} }
listen_port = atoi(argv[1]); /* Validate arguments */
strcat(protocol_lib, argv[2]);
if (listen_port < 0) {
fprintf(stderr, "The port to listen on must be specified.\n");
exit(EXIT_FAILURE);
}
if (protocol == NULL) {
fprintf(stderr, "The protocol must be specified.\n");
exit(EXIT_FAILURE);
}
strcat(protocol_lib, protocol);
strcat(protocol_lib, ".so"); strcat(protocol_lib, ".so");
client_argc = argc - 3; client_argc = argc - optind;
client_argv = &(argv[3]); client_argv = &(argv[optind]);
/* Get binding address */ /* Get binding address */
memset(&server_addr, 0, sizeof(server_addr)); /* Zero struct */ memset(&server_addr, 0, sizeof(server_addr)); /* Zero struct */
@@ -124,24 +152,22 @@ int main(int argc, char* argv[]) {
/* Get socket */ /* Get socket */
socket_fd = socket(AF_INET, SOCK_STREAM, 0); socket_fd = socket(AF_INET, SOCK_STREAM, 0);
if (socket_fd < 0) { if (socket_fd < 0) {
syslog(LOG_ERR, "Error opening socket: %s", strerror(errno)); fprintf(stderr, "Error opening socket: %s\n", strerror(errno));
return 1; exit(EXIT_FAILURE);
} }
/* Bind socket to address */ /* Bind socket to address */
if (bind(socket_fd, (struct sockaddr*) &server_addr, if (bind(socket_fd, (struct sockaddr*) &server_addr,
sizeof(server_addr)) < 0) { sizeof(server_addr)) < 0) {
syslog(LOG_ERR, "Error binding socket: %s", strerror(errno)); fprintf(stderr, "Error binding socket: %s\n", strerror(errno));
return 2; exit(EXIT_FAILURE);
} }
syslog(LOG_INFO, "Loading client plugin");
/* Load client plugin */ /* Load client plugin */
client_plugin_handle = dlopen(protocol_lib, RTLD_LAZY); client_plugin_handle = dlopen(protocol_lib, RTLD_LAZY);
if (!client_plugin_handle) { if (!client_plugin_handle) {
syslog(LOG_ERR, "Could not open client plugin: %s", dlerror()); fprintf(stderr, "Could not open client plugin for protocol \"%s\": %s\n", protocol, dlerror());
return 2; exit(EXIT_FAILURE);
} }
dlerror(); /* Clear errors */ dlerror(); /* Clear errors */
@@ -150,12 +176,12 @@ int main(int argc, char* argv[]) {
alias.obj = dlsym(client_plugin_handle, "guac_client_init"); alias.obj = dlsym(client_plugin_handle, "guac_client_init");
if ((error = dlerror()) != NULL) { if ((error = dlerror()) != NULL) {
syslog(LOG_ERR, "Could not get guac_client_init in plugin: %s", error); fprintf(stderr, "Could not get guac_client_init in plugin: %s\n", error);
return 2; exit(EXIT_FAILURE);
} }
syslog(LOG_INFO, "Listening on port %i", listen_port); syslog(LOG_INFO, "Started, listening on port %i", listen_port);
/* Daemon loop */ /* Daemon loop */