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#include <stdio.h> |
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#include <sys/socket.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <syslog.h> |
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#include <netinet/in.h> |
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#include <ukcprog.h> |
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#include <netdb.h> |
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#include <strings.h> |
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|
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typedef struct{ |
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int fm_port; |
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char *fm_host; |
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|
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char *my_fqdn; |
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char *server_fqdn; |
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int server_udp_port; |
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int server_tcp_port; |
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long last_modified; |
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char *files_list; |
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char *key; |
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int udp_update_time; |
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int tcp_update_time; |
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|
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}ihost_state_t; |
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|
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char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){ |
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char *reply; |
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fprintf(f_w, "%s", sendString); |
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fflush(f_w); |
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reply=fpgetline(f_r); |
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/* Returns pointer to static buffer */ |
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return reply; |
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} |
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|
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int ihost_configure(ihost_state_t *ihost_state){ |
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struct sockaddr_in addr; |
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struct in_addr haddr; |
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int sd; |
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FILE *fm_fd_r, *fm_fd_w; |
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char *reply; |
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char *reply_ptr; |
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|
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if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) { |
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errf("Can't create AF_INET socket (%m)"); |
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return -1; |
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} |
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|
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if (get_host_addr(ihost_state->fm_host, &haddr) != 0){ |
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errf("Failed to resolve address %s (%m)", ihost_state->fm_host); |
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return -1; |
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} |
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|
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memset((char *)&addr, 0, sizeof addr); |
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addr.sin_family = AF_INET; |
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memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr); |
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addr.sin_port = htons(ihost_state->fm_port); |
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|
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if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) { |
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errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port); |
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return -1; |
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} |
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|
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/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */ |
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if ((fm_fd_r=fdopen(sd,"r")) == NULL){ |
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errf("Failed to open stream (%m)"); |
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return -1; |
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} |
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|
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if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){ |
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errf("Failed to open stream (%m)"); |
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return -1; |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n"); |
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if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) { |
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errf("Server error"); |
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return -1; |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n"); |
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if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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ihost_state->last_modified=atol(reply); |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n"); |
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if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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if((ihost_state->files_list=strdup(reply)) == NULL){ |
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errf("strdup failed (%m)"); |
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return -1; |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n"); |
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if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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if((ihost_state->my_fqdn=strdup(reply)) == NULL){ |
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errf("strdup failed (%m)"); |
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return -1; |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n"); |
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if(reply== NULL){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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if (strncasecmp(reply, "ERROR", 5) != 0){ |
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ihost_state->udp_update_time=atoi(reply); |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n"); |
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if(reply== NULL){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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if (strncasecmp(reply, "ERROR", 5) != 0){ |
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ihost_state->tcp_update_time=atoi(reply); |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n"); |
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if(reply== NULL){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n"); |
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if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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reply_ptr=strchr(reply,';'); |
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if (reply_ptr==NULL){ |
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errf("Incorrect data returned"); |
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return -1; |
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} |
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*reply_ptr='\0'; |
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if((ihost_state->server_fqdn=strdup(reply)) == NULL){ |
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errf("strdup failed (%m)"); |
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return -1; |
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} |
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reply=++reply_ptr; |
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reply_ptr=strchr(reply,';'); |
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if (reply_ptr==NULL){ |
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errf("Incorrect data returned 2"); |
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return -1; |
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} |
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*reply_ptr='\0'; |
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ihost_state->server_udp_port=atoi(reply); |
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reply=++reply_ptr; |
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ihost_state->server_tcp_port=atoi(reply); |
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if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){ |
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errf("Incorrect data returned 3 "); |
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return -1; |
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} |
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|
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reply=sock_comm(fm_fd_r, fm_fd_w, "END\n"); |
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if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){ |
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errf("Server error (%m)"); |
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return -1; |
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} |
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|
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if(fclose(fm_fd_r) !=0){ |
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errf("Failed to close FD (%m)"); |
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return -1; |
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} |
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if(fclose(fm_fd_w) !=0){ |
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errf("Failed to close FD (%m)"); |
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return -1; |
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} |
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|
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return 0; |
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} |
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|
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int main(int argc, char **argv){ |
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ihost_state_t ihost_state; |
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errf_set_progname(argv[0]); |
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if(argc!=3){ |
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errf_usage("<host> <port>"); |
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exit(1); |
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} |
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|
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ihost_state.fm_host=argv[1]; |
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ihost_state.fm_port=atoi(argv[2]); |
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|
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if(ihost_configure(&ihost_state)!=0){ |
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errf("configure failed"); |
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} |
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|
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return 0; |
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} |
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|
