source/ihost/ihost.c

#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <netinet/in.h>
#include <ukcprog.h>
#include <netdb.h>
#include <strings.h>

typedef struct{
        int fm_port;
        char *fm_host;
        
        char *my_fqdn;
        char *server_fqdn;
        int server_udp_port;
        int server_tcp_port;
        long last_modified;
        char *files_list;
        char *key;
        int udp_update_time;
        int tcp_update_time;

}ihost_state_t;

char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
        char *reply;
        fprintf(f_w, "%s", sendString);
        fflush(f_w);
        reply=fpgetline(f_r);
        /* Returns pointer to static buffer */
        return reply;
}       

int ihost_configure(ihost_state_t *ihost_state){
        struct sockaddr_in addr;
        struct in_addr haddr;
        int sd;
        FILE *fm_fd_r, *fm_fd_w;
        char *reply;
        char *reply_ptr;

        if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
                errf("Can't create AF_INET socket (%m)");
                return -1;
        }

        if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
                errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
                return -1;
        }

        memset((char *)&addr, 0, sizeof addr);
        addr.sin_family = AF_INET;
        memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
        addr.sin_port =  htons(ihost_state->fm_port);

        if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
                errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
                return -1;
        }

        /* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
        if ((fm_fd_r=fdopen(sd,"r")) == NULL){
                errf("Failed to open stream (%m)");
                return -1;
        }

        if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
                errf("Failed to open stream (%m)");
                return -1;
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
        if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
                errf("Server error");   
                return -1;
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
        if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
                errf("Server error (%m)");
                return -1;
        }
        ihost_state->last_modified=atol(reply);
        
        reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
        if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
                errf("Server error (%m)");
                return -1;
        }
        if((ihost_state->files_list=strdup(reply)) == NULL){
                errf("strdup failed (%m)");
                return -1;
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
        if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
                errf("Server error (%m)");
                return -1;
        }
        if((ihost_state->my_fqdn=strdup(reply)) == NULL){
                errf("strdup failed (%m)");
                return -1;
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
        if(reply== NULL){
                errf("Server error (%m)");
                return -1;
        }
        if (strncasecmp(reply, "ERROR", 5) != 0){
                ihost_state->udp_update_time=atoi(reply);
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
        if(reply== NULL){
                errf("Server error (%m)");
                return -1;
        }
        if (strncasecmp(reply, "ERROR", 5) != 0){
                ihost_state->tcp_update_time=atoi(reply);
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
        if(reply== NULL){
                errf("Server error (%m)");
                return -1;
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
        if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
                errf("Server error (%m)");
                return -1;
        }
        reply_ptr=strchr(reply,';');
        if (reply_ptr==NULL){
                errf("Incorrect data returned");
                return -1;
        }
        *reply_ptr='\0';
        if((ihost_state->server_fqdn=strdup(reply)) == NULL){
                errf("strdup failed (%m)");
                return -1;
        }
        reply=++reply_ptr;
        reply_ptr=strchr(reply,';');
        if (reply_ptr==NULL){
                errf("Incorrect data returned 2");
                return -1;
        }
        *reply_ptr='\0';
        ihost_state->server_udp_port=atoi(reply);
        reply=++reply_ptr;
        ihost_state->server_tcp_port=atoi(reply);
        if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
                errf("Incorrect data returned 3 ");
                return -1;
        }

        reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
        if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
                errf("Server error (%m)");
                return -1;
        }

        if(fclose(fm_fd_r) !=0){
                errf("Failed to close FD (%m)");
                return -1;
        }
        if(fclose(fm_fd_w) !=0){
                errf("Failed to close FD (%m)");
                return -1;
        }

        return 0;
}

int main(int argc, char **argv){
        ihost_state_t ihost_state;
        errf_set_progname(argv[0]);
        if(argc!=3){
                errf_usage("<host> <port>");    
                exit(1);
        }

        ihost_state.fm_host=argv[1];
        ihost_state.fm_port=atoi(argv[2]);

        if(ihost_configure(&ihost_state)!=0){
                errf("configure failed");
        }

        return 0;
}

Revision:	1.3
Committed:	Fri May 10 21:32:38 2002 UTC (22 years ago) by pajs
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+8 -4 lines
Log Message:	Command line parsring
#	User	Rev	Content
1	pajs	1.1	#include <stdio.h>
2			#include <sys/socket.h>
3			#include <stdlib.h>
4			#include <unistd.h>
5			#include <syslog.h>
6			#include <netinet/in.h>
7			#include <ukcprog.h>
8			#include <netdb.h>
9			#include <strings.h>
10
11			typedef struct{
12			int fm_port;
13			char *fm_host;
14
15			char *my_fqdn;
16			char *server_fqdn;
17			int server_udp_port;
18			int server_tcp_port;
19			long last_modified;
20			char *files_list;
21			char *key;
22			int udp_update_time;
23			int tcp_update_time;
24
25			}ihost_state_t;
26
27	pajs	1.2	char* sock_comm(FILE f_r, FILE f_w, char* sendString){
28	pajs	1.1	char *reply;
29	pajs	1.2	fprintf(f_w, "%s", sendString);
30			fflush(f_w);
31			reply=fpgetline(f_r);
32	pajs	1.1	/* Returns pointer to static buffer */
33			return reply;
34			}
35
36			int ihost_configure(ihost_state_t *ihost_state){
37			struct sockaddr_in addr;
38			struct in_addr haddr;
39			int sd;
40	pajs	1.2	FILE fm_fd_r, fm_fd_w;
41	pajs	1.1	char *reply;
42	pajs	1.2	char *reply_ptr;
43	pajs	1.1
44			if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
45			errf("Can't create AF_INET socket (%m)");
46			return -1;
47			}
48
49			if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
50			errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
51			return -1;
52			}
53
54			memset((char *)&addr, 0, sizeof addr);
55			addr.sin_family = AF_INET;
56			memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
57			addr.sin_port = htons(ihost_state->fm_port);
58
59			if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
60			errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
61			return -1;
62			}
63
64	pajs	1.2	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
65			if ((fm_fd_r=fdopen(sd,"r")) == NULL){
66			errf("Failed to open stream (%m)");
67			return -1;
68			}
69
70			if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
71	pajs	1.1	errf("Failed to open stream (%m)");
72			return -1;
73			}
74	pajs	1.2
75			reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
76	pajs	1.1	if ((reply==NULL) \|\| (strncasecmp(reply, "OK", 2) != 0) ) {
77			errf("Server error");
78			return -1;
79			}
80
81	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
82			if((reply== NULL) \|\| (strncasecmp(reply, "ERROR", 5) ==0)){
83	pajs	1.1	errf("Server error (%m)");
84			return -1;
85			}
86			ihost_state->last_modified=atol(reply);
87
88	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
89			if((reply== NULL) \|\| (strncasecmp(reply, "ERROR", 5) ==0)){
90	pajs	1.1	errf("Server error (%m)");
91			return -1;
92			}
93			if((ihost_state->files_list=strdup(reply)) == NULL){
94			errf("strdup failed (%m)");
95			return -1;
96			}
97
98	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
99			if((reply== NULL) \|\| (strncasecmp(reply, "ERROR", 5)==0)){
100	pajs	1.1	errf("Server error (%m)");
101			return -1;
102			}
103			if((ihost_state->my_fqdn=strdup(reply)) == NULL){
104			errf("strdup failed (%m)");
105			return -1;
106			}
107
108	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
109	pajs	1.1	if(reply== NULL){
110			errf("Server error (%m)");
111			return -1;
112			}
113			if (strncasecmp(reply, "ERROR", 5) != 0){
114			ihost_state->udp_update_time=atoi(reply);
115			}
116
117	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
118	pajs	1.1	if(reply== NULL){
119			errf("Server error (%m)");
120			return -1;
121			}
122			if (strncasecmp(reply, "ERROR", 5) != 0){
123			ihost_state->tcp_update_time=atoi(reply);
124			}
125
126	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
127	pajs	1.1	if(reply== NULL){
128			errf("Server error (%m)");
129			return -1;
130			}
131
132	pajs	1.2	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
133			if((reply== NULL) \|\| (strncasecmp(reply, "ERROR", 5)==0)){
134			errf("Server error (%m)");
135			return -1;
136			}
137			reply_ptr=strchr(reply,';');
138			if (reply_ptr==NULL){
139			errf("Incorrect data returned");
140			return -1;
141			}
142			*reply_ptr='\0';
143			if((ihost_state->server_fqdn=strdup(reply)) == NULL){
144			errf("strdup failed (%m)");
145			return -1;
146			}
147			reply=++reply_ptr;
148			reply_ptr=strchr(reply,';');
149			if (reply_ptr==NULL){
150			errf("Incorrect data returned 2");
151			return -1;
152			}
153			*reply_ptr='\0';
154			ihost_state->server_udp_port=atoi(reply);
155			reply=++reply_ptr;
156			ihost_state->server_tcp_port=atoi(reply);
157			if ((ihost_state->server_tcp_port==0) \|\| (ihost_state->server_udp_port==0)){
158			errf("Incorrect data returned 3 ");
159			return -1;
160			}
161
162			reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
163			if((reply== NULL) \|\| (strncasecmp(reply, "ERROR", 5) ==0 )){
164			errf("Server error (%m)");
165			return -1;
166			}
167	pajs	1.1
168	pajs	1.2	if(fclose(fm_fd_r) !=0){
169			errf("Failed to close FD (%m)");
170			return -1;
171			}
172			if(fclose(fm_fd_w) !=0){
173			errf("Failed to close FD (%m)");
174			return -1;
175			}
176	pajs	1.1
177			return 0;
178			}
179
180	pajs	1.3	int main(int argc, char **argv){
181	pajs	1.2	ihost_state_t ihost_state;
182	pajs	1.3	errf_set_progname(argv[0]);
183			if(argc!=3){
184			errf_usage("<host> <port>");
185			exit(1);
186			}
187	pajs	1.2
188	pajs	1.3	ihost_state.fm_host=argv[1];
189			ihost_state.fm_port=atoi(argv[2]);
190	pajs	1.2
191			if(ihost_configure(&ihost_state)!=0){
192			errf("configure failed");
193			}
194	pajs	1.1
195			return 0;
196			}
197