[9089] | 1 | /* Copyright Milan Technology, 1991 1992 */ |
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| 2 | |
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| 3 | /* @(#)udpstat.c 2.2 10/16/92 */ |
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| 4 | |
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| 5 | #include "udp.h" |
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| 6 | #include <stdio.h> |
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| 7 | |
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| 8 | #include <sys/types.h> |
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| 9 | |
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| 10 | /* #include <sys/socket.h> */ |
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| 11 | #include <sys/errno.h> |
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| 12 | #ifndef HPOLD |
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| 13 | #include <netinet/in.h> |
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| 14 | #endif |
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| 15 | #include <signal.h> |
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| 16 | #include "dp.h" |
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| 17 | |
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| 18 | void print_status_info(); |
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| 19 | int get_udpstatus(); |
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| 20 | void print_active_connection(); |
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| 21 | |
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| 22 | /* UDP Status packet */ |
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| 23 | |
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| 24 | udp_status_packet udp_stat; |
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| 25 | |
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| 26 | #ifdef ANSI |
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| 27 | int |
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| 28 | get_printer_status(char *printer, char *error_string, int port) |
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| 29 | #else |
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| 30 | int |
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| 31 | get_printer_status(printer, error_string, port) |
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| 32 | char *printer; |
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| 33 | char *error_string; |
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| 34 | int port; |
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| 35 | #endif |
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| 36 | { |
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| 37 | int fastport; |
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| 38 | struct sockaddr_in fp_sock, my_sock; |
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| 39 | unsigned long temp; |
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| 40 | struct hostent *hp; |
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| 41 | int status; |
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| 42 | |
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| 43 | bzero((char *) &fp_sock, sizeof(fp_sock)); |
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| 44 | fp_sock.sin_family = AF_INET; |
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| 45 | |
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| 46 | if (!(hp = gethostbyname(printer))) { |
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| 47 | return(0); |
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| 48 | } |
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| 49 | temp = *(unsigned long *) hp->h_addr; |
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| 50 | fp_sock.sin_addr.s_addr = temp; |
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| 51 | fp_sock.sin_port = htons(35); |
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| 52 | if ((fastport = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { |
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| 53 | perror("error on socket\n"); |
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| 54 | return(0); |
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| 55 | } |
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| 56 | /* |
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| 57 | * need to be able to receive status so bind the socket |
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| 58 | */ |
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| 59 | bzero((char *) &my_sock, sizeof(my_sock)); |
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| 60 | my_sock.sin_family = AF_INET; |
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| 61 | my_sock.sin_addr.s_addr = htonl(INADDR_ANY); |
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| 62 | my_sock.sin_port = htons(0); |
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| 63 | if (bind(fastport, (struct sockaddr *) & my_sock, sizeof(my_sock)) < 0) { |
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| 64 | perror("can't bind:"); |
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| 65 | return(0); |
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| 66 | } |
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| 67 | status = get_udpstatus(fastport, (struct sockaddr *) & fp_sock, sizeof(fp_sock), |
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| 68 | error_string, port, printer); |
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| 69 | close(fastport); |
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| 70 | return(status); |
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| 71 | |
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| 72 | } |
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| 73 | #ifdef ANSI |
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| 74 | int |
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| 75 | get_udpstatus(int fastport, struct sockaddr * server, int server_length, |
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| 76 | char *error_string, int port, char *fastport_name) |
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| 77 | #else |
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| 78 | int |
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| 79 | get_udpstatus(fastport, server, server_length, error_string, port, fastport_name) |
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| 80 | int fastport; |
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| 81 | struct sockaddr *server; |
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| 82 | int server_length; |
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| 83 | char *error_string; |
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| 84 | int port; |
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| 85 | char *fastport_name; |
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| 86 | #endif |
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| 87 | { |
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| 88 | char command[10]; |
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| 89 | |
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| 90 | int nbytes, sel_val; |
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| 91 | fd_set readfds; |
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| 92 | struct timeval timeout; |
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| 93 | struct sockaddr_in rec_address; |
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| 94 | int reclen; |
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| 95 | timeout.tv_sec = 3; |
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| 96 | timeout.tv_usec = 0; |
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| 97 | |
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| 98 | command[0] = MILAN_OP; /* a milan query */ |
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| 99 | command[1] = GET_STATUS; /* action required */ |
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| 100 | |
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| 101 | if ((nbytes = sendto(fastport, command, sizeof(command), 0, server, server_length)) != |
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| 102 | sizeof(command)) { |
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| 103 | perror("Cannot send to server:"); |
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| 104 | exit(1); |
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| 105 | } |
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| 106 | while (1) { |
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| 107 | FD_ZERO(&readfds); |
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| 108 | FD_SET(fastport, &readfds); |
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| 109 | if ((sel_val = select(fastport + 1, &readfds, 0, 0, &timeout)) < 0) { |
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| 110 | sprintf(error_string, "no response from server \n"); |
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| 111 | return(0); |
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| 112 | } |
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| 113 | if (!sel_val) { |
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| 114 | sprintf(error_string, "no response from server %s for %s port\n", fastport_name, port == 2001 ? "Serial" : "Parallel"); |
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| 115 | return(0);; |
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| 116 | } |
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| 117 | if (FD_ISSET(fastport, &readfds)) |
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| 118 | break; |
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| 119 | } |
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| 120 | |
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| 121 | reclen = sizeof(rec_address); |
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| 122 | if ((nbytes = recvfrom(fastport, (char *)&udp_stat, |
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| 123 | sizeof(udp_stat), 0, |
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| 124 | (struct sockaddr *)&rec_address, &reclen)) < |
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| 125 | 0) { |
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| 126 | sprintf(error_string, "udp recvfrom returned error"); |
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| 127 | return(0); |
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| 128 | } |
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| 129 | print_status_info(&udp_stat, error_string, port); |
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| 130 | return(1); |
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| 131 | } |
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| 132 | #ifdef ANSII |
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| 133 | void |
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| 134 | print_status_info(udp_status_packet * stat_buff, char *error_string, int port) |
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| 135 | #else |
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| 136 | void |
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| 137 | print_status_info(stat_buff, error_string, port) |
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| 138 | udp_status_packet *stat_buff; |
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| 139 | char *error_string; |
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| 140 | int port; |
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| 141 | #endif |
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| 142 | { |
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| 143 | char temp_string[100]; |
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| 144 | struct hostent *hp; |
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| 145 | unsigned long host_addr; |
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| 146 | if (port == PARALLEL) { |
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| 147 | if (stat_buff->parallel_addr) { |
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| 148 | #ifndef SCO |
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| 149 | host_addr = ntohl(stat_buff->parallel_addr); |
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| 150 | #else |
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| 151 | host_addr = stat_buff->parallel_addr; |
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| 152 | #endif |
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| 153 | print_active_connection(&host_addr, "parallel ", error_string); |
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| 154 | sprintf(temp_string, "%s\n", stat_buff->message); |
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| 155 | strcat(error_string, temp_string); |
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| 156 | sprintf(temp_string, "Total parallel bytes sent: %d\n\n", ntohl(stat_buff->parallel_bytes)); |
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| 157 | strcat(error_string, temp_string); |
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| 158 | } else { |
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| 159 | strcat(error_string, "No active parallel connection\n"); |
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| 160 | sprintf(temp_string, "%s\n", stat_buff->message); |
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| 161 | strcat(error_string, temp_string); |
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| 162 | sprintf(temp_string, "Total parallel bytes sent: %d\n\n", ntohl(stat_buff->parallel_bytes)); |
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| 163 | strcat(error_string, temp_string); |
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| 164 | } |
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| 165 | } |
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| 166 | if (port == SERIAL) { |
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| 167 | if (stat_buff->serial_addr) { |
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| 168 | #ifndef SCO |
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| 169 | host_addr = ntohl(stat_buff->serial_addr); |
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| 170 | #else |
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| 171 | host_addr = stat_buff->serial_addr; |
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| 172 | #endif |
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| 173 | print_active_connection(&host_addr, "serial ", error_string); |
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| 174 | sprintf(temp_string, "Total serial bytes sent: %d\n\n", ntohl(stat_buff->serial_bytes)); |
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| 175 | strcat(error_string, temp_string); |
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| 176 | } else { |
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| 177 | strcat(error_string, "No active serial connection\n"); |
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| 178 | sprintf(temp_string, "Total serial bytes sent: %d\n\n", ntohl(stat_buff->serial_bytes)); |
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| 179 | strcat(error_string, temp_string); |
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| 180 | } |
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| 181 | } |
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| 182 | } |
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| 183 | |
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| 184 | #ifdef ANSI |
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| 185 | void |
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| 186 | print_active_connection(unsigned long *host_address, char *kind, char *error_string) |
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| 187 | #else |
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| 188 | void |
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| 189 | print_active_connection(host_address, kind, error_string) |
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| 190 | unsigned long *host_address; |
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| 191 | char *kind; |
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| 192 | char *error_string; |
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| 193 | #endif |
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| 194 | { |
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| 195 | struct hostent *hp; |
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| 196 | char temp_string[100]; |
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| 197 | #ifdef __STDC__ |
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| 198 | if (hp = gethostbyaddr((const char *)host_address, 4, AF_INET)) { |
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| 199 | #else |
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| 200 | if (hp = gethostbyaddr((char *)host_address, 4, AF_INET)) { |
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| 201 | #endif |
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| 202 | unsigned long newaddr; |
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| 203 | newaddr = *(unsigned long *)hp->h_addr; |
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| 204 | sprintf(temp_string, "\nActive %s data session from %s (%s)\n", kind, hp->h_name, |
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| 205 | inet_ntoa((struct in_addr *) (&newaddr))); |
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| 206 | } else { |
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| 207 | sprintf(error_string, "\nActive %s data session from %s\n", kind, |
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| 208 | inet_ntoa((struct in_addr *) (host_address))); |
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| 209 | return; |
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| 210 | } |
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| 211 | strcat(error_string, temp_string); |
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| 212 | } |
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