X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/e75295bb20a25fadb04bf8d8162245de85ba1044..f16395dafd2efc188914cdbe0ca18148940bb66b:/hmland.c diff --git a/hmland.c b/hmland.c index f807164..cde993b 100644 --- a/hmland.c +++ b/hmland.c @@ -38,7 +38,11 @@ #include "hexdump.h" #include "hmcfgusb.h" +extern char *optarg; + static int impersonate_hmlanif = 0; +static int debug = 0; +static int verbose = 0; #define FLAG_LENGTH_BYTE (1<<0) #define FLAG_FORMAT_HEX (1<<1) @@ -223,51 +227,73 @@ static void hmlan_format_out(uint8_t *buf, int buf_len, void *data) break; } write(fd, out, outpos-out); + if (debug) + fprintf(stderr, "LAN < %s\n", out); } static int hmlan_parse_in(int fd, void *data) { struct hmcfgusb_dev *dev = data; - uint8_t buf[1024]; + uint8_t buf[1025]; uint8_t out[0x40]; //FIXME!!! uint8_t *outpos; uint8_t *inpos; int i; + int last; int r; - r = read(fd, buf, sizeof(buf)); + memset(buf, 0, sizeof(buf)); + + r = read(fd, buf, sizeof(buf)-1); if (r > 0) { - memset(out, 0, sizeof(out)); - for (i = 0; i < r; i++) { - if ((buf[i] == 0x0a) || - (buf[i] == 0x0d)) { - r = i; - break; + uint8_t *inend = buf + r; + + inpos = buf; + + if (debug) + fprintf(stderr, "LAN > %s\n", buf); + + while (inpos < inend) { + uint8_t *instart = inpos; + + if ((*inpos == '\r') || (*inpos == '\n')) { + inpos++; + continue; } - } + + outpos = out; - if (r == 0) - return 1; - - out[0] = buf[0]; - outpos = out+1; - inpos = buf+1; - - switch(buf[0]) { - case 'S': - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0); - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE); - break; - default: - parse_part_in(&inpos, (r-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS); - break; - } + last = inend - inpos; + + for (i = 0; i < last; i++) { + if ((inpos[i] == '\r') || (inpos[i] == '\n')) { + last = i; + break; + } + } + + if (last == 0) + continue; + + memset(out, 0, sizeof(out)); + *outpos++ = *inpos++; + + switch(buf[0]) { + case 'S': + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0); + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE); + break; + default: + parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS); + break; + } - hmcfgusb_send(dev, out, outpos-out, 1); + hmcfgusb_send(dev, out, sizeof(out), 1); + } } else if (r < 0) { perror("read"); return r; @@ -283,6 +309,8 @@ static int comm(int fd_in, int fd_out, int master_socket) struct hmcfgusb_dev *dev; int quit = 0; + hmcfgusb_set_debug(debug); + dev = hmcfgusb_init(hmlan_format_out, &fd_out); if (!dev) { fprintf(stderr, "Can't initialize HM-CFG-USB!\n"); @@ -335,11 +363,23 @@ static int comm(int fd_in, int fd_out, int master_socket) return 1; } -static int socket_server(int port) +static int socket_server(int port, int daemon) { struct sockaddr_in sin; int sock; int n; + pid_t pid; + + if (daemon) { + pid = fork(); + if (pid > 0) { + printf("Daemon with PID %u started!\n", pid); + exit(EXIT_SUCCESS); + } else if (pid < 0) { + perror("fork"); + exit(EXIT_FAILURE); + } + } impersonate_hmlanif = 1; @@ -374,6 +414,7 @@ static int socket_server(int port) struct sockaddr_in csin; socklen_t csinlen; int client; + in_addr_t client_addr; memset(&csin, 0, sizeof(csin)); csinlen = sizeof(csin); @@ -383,14 +424,29 @@ static int socket_server(int port) continue; } - printf("Client accepted!\n"); + /* FIXME: getnameinfo... */ + client_addr = ntohl(csin.sin_addr.s_addr); + + if (verbose) { + printf("Client %d.%d.%d.%d connected!\n", + (client_addr & 0xff000000) >> 24, + (client_addr & 0x00ff0000) >> 16, + (client_addr & 0x0000ff00) >> 8, + (client_addr & 0x000000ff)); + } comm(client, client, sock); shutdown(client, SHUT_RDWR); close(client); - printf("Connection closed!\n"); + if (verbose) { + printf("Connection to %d.%d.%d.%d closed!\n", + (client_addr & 0xff000000) >> 24, + (client_addr & 0x00ff0000) >> 16, + (client_addr & 0x0000ff00) >> 8, + (client_addr & 0x000000ff)); + } } @@ -405,8 +461,62 @@ static int interactive_server(void) return EXIT_SUCCESS; } +void hmlan_syntax(char *prog) +{ + fprintf(stderr, "Syntax: %s options\n\n", prog); + fprintf(stderr, "Possible options:\n"); + fprintf(stderr, "\t-D\tdebug mode\n"); + fprintf(stderr, "\t-d\tdaemon mode\n"); + fprintf(stderr, "\t-h\tthis help\n"); + fprintf(stderr, "\t-i\tinteractive mode (connect HM-CFG-USB to terminal)\n"); + fprintf(stderr, "\t-p n\tlisten on port n (default 1000)\n"); + fprintf(stderr, "\t-v\tverbose mode\n"); + +} + int main(int argc, char **argv) { - //return interactive_server(); - return socket_server(1234); + int port = 1000; + int interactive = 0; + int daemon = 0; + char *ep; + int opt; + + while((opt = getopt(argc, argv, "Ddhip:v")) != -1) { + switch (opt) { + case 'D': + debug = 1; + verbose = 1; + break; + case 'd': + daemon = 1; + break; + case 'i': + interactive = 1; + break; + case 'p': + port = strtoul(optarg, &ep, 10); + if (*ep != '\0') { + fprintf(stderr, "Can't parse port!\n"); + exit(EXIT_FAILURE); + } + break; + case 'v': + verbose = 1; + break; + case 'h': + case ':': + case '?': + default: + hmlan_syntax(argv[0]); + exit(EXIT_FAILURE); + break; + } + } + + if (interactive) { + return interactive_server(); + } else { + return socket_server(port, daemon); + } }