/* * Copyright (C) 2009 Sony Computer Entertainment Inc. * Copyright 2009 Sony Corp. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #if defined(HAVE_CONFIG_H) #include "config.h" #endif #include #include #include #include #include #include #include #include #include #include #include "discover/user-event.h" #if defined(DEBUG) #define DBG(_args...) do {fprintf(stderr, _args); fflush(stderr); } while (0) #else static inline int __attribute__ ((format (printf, 1, 2))) DBG( __attribute__((unused)) const char *fmt, ...) {return 0; } #endif static void print_version(void) { printf("pb-event (" PACKAGE_NAME ") " PACKAGE_VERSION "\n"); } static void print_usage(void) { print_version(); printf( "Usage: pb-event [-h] [event...]\n" "\n" " Send a single petitboot user event to the petitboot discover server.\n" " Events can be read from stdin, or provided on the command line.\n" " User events must have the following format:\n" "\n" " (add|remove)@device-id [name=value] [image=value] [args=value]\n" "\n" " When read from stdin, components are separated by NUL chars\n" "\n" "Examples:\n" "\n" " args:\n" " pb-event add@/net/eth0 name=netboot image=tftp://192.168.1.10/vmlinux\n" " pb-event remove@/net/eth0\n" "\n" " stdin:\n" " printf 'add@/net/eth0\\0name=netboot\\0image=tftp://10.0.0.2/vmlinux\\0' \\\n" " | pb-event\n" " printf 'remove@/net/eth0\\0' | pb-event\n" "\n"); } static const char *err_max_size = "pb-event: message too large " "(%zu byte max)\n"; static ssize_t parse_event_args(int n, char * const * args, char *buf, size_t max_len) { ssize_t arg_len, total_len; const char *arg; int i; total_len = 0; for (i = 0; i < n; i++) { arg = args[i]; arg_len = strlen(arg); if (total_len + (size_t)i + 1 > max_len) { fprintf(stderr, err_max_size, max_len); return -1; } memcpy(buf + total_len, arg, arg_len); total_len += arg_len; buf[total_len] = '\0'; total_len++; } return total_len; } static ssize_t parse_event_file(FILE *filp, char *buf, size_t max_len) { int len; len = fread(buf, 1, max_len, filp); if (!feof(filp)) { fprintf(stderr, err_max_size, max_len); return -1; } if (!len) return -1; return len; } static int send_event(char *buf, ssize_t len) { struct sockaddr_un addr; int sd, i; sd = socket(PF_UNIX, SOCK_DGRAM, 0); if (sd < 0) err(EXIT_FAILURE, "socket"); memset(&addr, 0, sizeof(addr)); addr.sun_family = AF_UNIX; strcpy(addr.sun_path, PBOOT_USER_EVENT_SOCKET); for (i = 10; i; i--) { ssize_t sent = sendto(sd, buf, len, 0, (struct sockaddr *)&addr, SUN_LEN(&addr)); if (sent == len) break; DBG("pb-event: waiting for server %d\n", i); sleep(1); } close(sd); if (!i) err(EXIT_FAILURE, "send"); DBG("pb-event: wrote %zu bytes\n", len); return 0; } int main(int argc, char *argv[]) { char buf[PBOOT_USER_EVENT_SIZE]; ssize_t len; if (argc >= 2 && !strcmp(argv[1], "-h")) { print_usage(); return EXIT_SUCCESS; } if (argc > 1) { len = parse_event_args(argc - 1, argv + 1, buf, sizeof(buf)); } else { len = parse_event_file(stdin, buf, sizeof(buf)); } if (len < 0) return EXIT_FAILURE; send_event(buf, len); return EXIT_SUCCESS; }