X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=command.c;h=379cc4d90044659fa893b22781b4f685f8534bac;hp=71b319981efa16f0a2a0a51aeb1e76e0023bd850;hb=bbea823f656bff170f190a094b8e3da0cdca2c46;hpb=459acdd4599a59effdd7fadd4a586e3b13e67b67 diff --git a/command.c b/command.c index 71b31998..379cc4d9 100644 --- a/command.c +++ b/command.c @@ -37,7 +37,6 @@ static RC4_KEY rc4_recv_key; static RC4_KEY rc4_send_key; static unsigned char rc4_buf[2 * RC4_KEY_LEN]; -extern const char *status_item_list[NUM_STAT_ITEMS]; extern struct misc_meta_data *mmd; extern struct sender senders[]; @@ -97,56 +96,49 @@ static char *vss_get_status_flags(unsigned int flags) static char *get_status(struct misc_meta_data *nmmd) { - char *basename, *dirname, *ret, mtime[30] = ""; + char *ret, mtime[30] = ""; char *status, *flags; /* vss status info */ char *ut = uptime_str(); long offset = (nmmd->offset + 500) / 1000; struct timeval now; struct tm mtime_tm; - localtime_r(&nmmd->mtime, &mtime_tm); - strftime(mtime, 29, "%a %b %d %Y", &mtime_tm); /* report real status */ status = vss_status_tohuman(nmmd->vss_status_flags); flags = vss_get_status_flags(nmmd->vss_status_flags); - basename = para_basename(nmmd->filename); - dirname = para_dirname(nmmd->filename); + if (nmmd->size) { /* parent currently has an audio file open */ + localtime_r(&nmmd->mtime, &mtime_tm); + strftime(mtime, 29, "%a %b %d %Y", &mtime_tm); + } gettimeofday(&now, NULL); ret = make_message( - "%s:%zu\n" "%s:%s\n" "%s:%lu\n" "%s:%u\n" - "%s:%s\n" "%s:%s\n" "%s:%s\n" "%s:%u\n" - "%s:%li\n" "%s:%s\n" "%s:%s\n" "%s" - "%s:%s\n" "%s:%lu.%lu\n" "%s:%lu.%lu\n" "%s:%s\n" - "%s:%s\n", + "%s: %zu\n" /* file size */ + "%s: %s\n" /* mtime */ + "%s: %s\n" /* status */ + "%s: %s\n" /* status flags */ + "%s: %li\n" /* offset */ + "%s: %s\n" /* afs mode */ + "%s: %lu.%lu\n" /* stream start */ + "%s: %lu.%lu\n" /* current server time */ + "%s", /* afs status info */ status_item_list[SI_FILE_SIZE], nmmd->size / 1024, status_item_list[SI_MTIME], mtime, - status_item_list[SI_LENGTH], nmmd->afd.afhi.seconds_total, - status_item_list[SI_NUM_PLAYED], nmmd->num_played, - - status_item_list[SI_BASENAME], basename ? basename : "(none)", status_item_list[SI_STATUS], status, status_item_list[SI_STATUS_FLAGS], flags, - status_item_list[SI_IMAGE_ID], nmmd->afd.afsi.image_id, status_item_list[SI_OFFSET], offset, - status_item_list[SI_FORMAT], audio_format_name(nmmd->afd.afsi.audio_format_id), status_item_list[SI_AFS_MODE], mmd->afs_mode_string, - nmmd->afd.afhi.info_string, - status_item_list[SI_UPTIME], ut, status_item_list[SI_STREAM_START], (long unsigned)nmmd->stream_start.tv_sec, (long unsigned)nmmd->stream_start.tv_usec, status_item_list[SI_CURRENT_TIME], (long unsigned)now.tv_sec, (long unsigned)now.tv_usec, - status_item_list[SI_ATTRIBUTES], mmd->afd.attributes_string, - status_item_list[SI_DIRECTORY], dirname + nmmd->afd.verbose_ls_output ); - free(basename); - free(dirname); free(flags); free(status); free(ut); @@ -371,13 +363,16 @@ static struct server_command *get_cmd_ptr(const char *name, char **handler) for (cmd = server_cmds; cmd->name; cmd++) if (!strcmp(cmd->name, name)) { if (handler) - *handler = para_strdup("para_server"); /* server commands */ + *handler = para_strdup("server"); /* server commands */ return cmd; } /* not found, look for commands supported by afs */ for (cmd = afs_cmds; cmd->name; cmd++) - if (!strcmp(cmd->name, name)) + if (!strcmp(cmd->name, name)) { + if (handler) + *handler = para_strdup("afs"); return cmd; + } return NULL; } @@ -468,10 +463,11 @@ int com_pause(__a_unused int fd, int argc, __a_unused char * const * argv) if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); - if (!vss_paused()) + if (!vss_paused() && !vss_stopped()) { mmd->events++; - mmd->new_vss_status_flags &= ~VSS_PLAYING; - mmd->new_vss_status_flags &= ~VSS_NEXT; + mmd->new_vss_status_flags &= ~VSS_PLAYING; + mmd->new_vss_status_flags &= ~VSS_NEXT; + } mmd_unlock(); return 1; } @@ -594,17 +590,12 @@ static struct server_command *parse_cmd(const char *cmdstr) return get_cmd_ptr(buf, NULL); } -static long int para_rand(long unsigned max) -{ - return (long int) ((max + 0.0) * (random() / (RAND_MAX + 1.0))); -} - static void init_rc4_keys(void) { int i; for (i = 0; i < 2 * RC4_KEY_LEN; i++) - rc4_buf[i] = para_rand(256); + rc4_buf[i] = para_random(256); PARA_DEBUG_LOG("rc4 keys initialized (%u:%u)\n", (unsigned char) rc4_buf[0], (unsigned char) rc4_buf[RC4_KEY_LEN]); @@ -663,8 +654,8 @@ out: /** * perform user authentication and execute a command * - * \param fd the file descriptor to send output to - * \param addr socket address info of peer + * \param fd The file descriptor to send output to + * \param peername Identifies the connecting peer. * * \return EXIT_SUCCESS or EXIT_FAILURE * @@ -689,7 +680,7 @@ out: * * \sa alarm(2), rc4(3), crypt.c, crypt.h */ -int handle_connect(int fd, struct sockaddr_in *addr) +int handle_connect(int fd, const char *peername) { int ret, argc, use_rc4 = 0; char buf[4096]; @@ -707,6 +698,10 @@ int handle_connect(int fd, struct sockaddr_in *addr) signal(SIGHUP, SIG_DFL); signal(SIGUSR1, SIG_IGN); + /* we need a blocking fd here as recv() might return EAGAIN otherwise. */ + ret = mark_fd_blocking(fd); + if (ret < 0) + goto err_out; challenge_nr = random(); /* send Welcome message */ ret = send_va_buffer(fd, "This is para_server, version " @@ -746,15 +741,15 @@ int handle_connect(int fd, struct sockaddr_in *addr) /* We can't use send_buffer here since buf may contain null bytes */ ret = send_bin_buffer(fd,(char *) crypt_buf, numbytes); if (ret < 0) - goto err_out; + goto net_err; /* recv decrypted number */ ret = recv_buffer(fd, buf, sizeof(buf)); if (ret < 0) - goto err_out; + goto net_err; numbytes = ret; ret = -E_AUTH; if (!numbytes) - goto err_out; + goto net_err; if (sscanf(buf, CHALLENGE_RESPONSE_MSG "%lu", &chall_response) < 1 || chall_response != challenge_nr) goto err_out; @@ -772,12 +767,14 @@ int handle_connect(int fd, struct sockaddr_in *addr) numbytes = strlen(buf); ret = send_bin_buffer(fd, buf, numbytes); if (ret < 0) - goto err_out; + goto net_err; if (use_rc4) enable_crypt(fd, rc4_recv, rc4_send, NULL); ret = read_command(fd, &command); - if (ret < 0) + if (ret == -E_COMMAND_SYNTAX) goto err_out; + if (ret < 0) + goto net_err; ret = -E_BAD_CMD; cmd = parse_cmd(command); if (!cmd) @@ -793,16 +790,16 @@ int handle_connect(int fd, struct sockaddr_in *addr) mmd->num_commands++; mmd_unlock(); PARA_NOTICE_LOG("calling com_%s() for %s@%s\n", cmd->name, u->name, - inet_ntoa(addr->sin_addr)); + peername); ret = cmd->handler(fd, argc, argv); if (ret >= 0) { ret = EXIT_SUCCESS; goto out; } err_out: + send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret)); +net_err: PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-ret)); - if (ret != -E_SEND && ret != -E_RECV) - send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret)); ret = EXIT_FAILURE; out: free(command);