diff options
Diffstat (limited to 'networking/udhcp')
| -rw-r--r-- | networking/udhcp/AUTHORS | 1 | ||||
| -rw-r--r-- | networking/udhcp/ChangeLog | 4 | ||||
| -rw-r--r-- | networking/udhcp/Makefile.in | 15 | ||||
| -rw-r--r-- | networking/udhcp/arpping.c | 9 | ||||
| -rw-r--r-- | networking/udhcp/clientpacket.c | 10 | ||||
| -rw-r--r-- | networking/udhcp/dhcpc.c | 120 | ||||
| -rw-r--r-- | networking/udhcp/dhcpc.h | 2 | ||||
| -rw-r--r-- | networking/udhcp/dhcpd.c | 77 | ||||
| -rw-r--r-- | networking/udhcp/dhcpd.h | 2 | ||||
| -rw-r--r-- | networking/udhcp/dumpleases.c | 44 | ||||
| -rw-r--r-- | networking/udhcp/files.c | 123 | ||||
| -rw-r--r-- | networking/udhcp/files.h | 10 | ||||
| -rw-r--r-- | networking/udhcp/leases.c | 34 | ||||
| -rw-r--r-- | networking/udhcp/leases.h | 3 | ||||
| -rw-r--r-- | networking/udhcp/options.c | 4 | ||||
| -rw-r--r-- | networking/udhcp/packet.c | 10 | ||||
| -rw-r--r-- | networking/udhcp/script.c | 59 | ||||
| -rw-r--r-- | networking/udhcp/serverpacket.c | 7 | ||||
| -rw-r--r-- | networking/udhcp/socket.c | 18 |
19 files changed, 197 insertions, 355 deletions
diff --git a/networking/udhcp/AUTHORS b/networking/udhcp/AUTHORS index 89a6de41d..3772aedb3 100644 --- a/networking/udhcp/AUTHORS +++ b/networking/udhcp/AUTHORS @@ -9,5 +9,6 @@ Other Credits: -------------- Moreton Bay (http://www.moretonbay.com/) Lineo (http://opensource.lineo.com) +Vladimir Oleynik <dzo@simtrea.ru>, optimize and more integrate for busybox diff --git a/networking/udhcp/ChangeLog b/networking/udhcp/ChangeLog index 7409fd0ad..57e89a018 100644 --- a/networking/udhcp/ChangeLog +++ b/networking/udhcp/ChangeLog @@ -1,3 +1,7 @@ +0.9.10 + Size optimization (over 3k), more busybox integration + (Vladimir Oleynik <dzo@simtreas.ru> + 0.9.9 (pending) + Fixed a little endian problem in mton (Bastian Blank <waldi@debian.org>) + Fixed a arpping alignment problem (Rui He <rhe@3eti.com>) diff --git a/networking/udhcp/Makefile.in b/networking/udhcp/Makefile.in index 369308e8d..5d6176bab 100644 --- a/networking/udhcp/Makefile.in +++ b/networking/udhcp/Makefile.in @@ -33,11 +33,22 @@ CONFIG_UDHCP_SHARED=n endif endif +ifeq ($(CONFIG_UDHCPD), y) +CONFIG_UDHCP_LEASES_FILE=y +else +ifeq ($(CONFIG_UDHCPD), y) +CONFIG_UDHCP_LEASES_FILE=y +else +CONFIG_UDHCP_LEASES_FILE=n +endif +endif + UDHCP-y:= -UDHCP-$(CONFIG_UDHCP_SHARED) += options.c socket.c packet.c pidfile.c +UDHCP-$(CONFIG_UDHCP_SHARED) += options.c socket.c packet.c common.c UDHCP-$(CONFIG_UDHCPC) += dhcpc.c clientpacket.c script.c UDHCP-$(CONFIG_UDHCPD) += dhcpd.c arpping.c files.c leases.c serverpacket.c UDHCP-$(CONFIG_DUMPLEASES) += dumpleases.c +UDHCP-$(CONFIG_UDHCP_LEASES_FILE) += leases_file.c UDHCP_OBJS=$(patsubst %.c,$(UDHCP_DIR)%.o, $(UDHCP-y)) libraries-y+=$(UDHCP_DIR)$(UDHCP_AR) @@ -46,5 +57,5 @@ $(UDHCP_DIR)$(UDHCP_AR): $(UDHCP_OBJS) $(AR) -ro $@ $(UDHCP_OBJS) $(UDHCP_OBJS): %.o : %.c - $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -DIN_BUSYBOX -c $< -o $@ + $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c $< -o $@ diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c index 4c0b3d83b..e20395a9e 100644 --- a/networking/udhcp/arpping.c +++ b/networking/udhcp/arpping.c @@ -5,22 +5,19 @@ * by Yoichi Hariguchi <yoichi@fore.com> */ -#include <sys/types.h> #include <sys/time.h> #include <time.h> -#include <sys/types.h> #include <sys/socket.h> #include <netinet/if_ether.h> #include <net/if_arp.h> #include <netinet/in.h> -#include <stdio.h> #include <string.h> #include <unistd.h> #include <errno.h> #include "dhcpd.h" -#include "debug.h" #include "arpping.h" +#include "common.h" /* args: yiaddr - what IP to ping * ip - our ip @@ -47,7 +44,7 @@ int arpping(u_int32_t yiaddr, u_int32_t ip, unsigned char *mac, char *interface) if ((s = socket (PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP))) == -1) { - LOG(LOG_ERR, "Could not open raw socket"); + LOG(LOG_ERR, bb_msg_can_not_create_raw_socket); return -1; } @@ -84,7 +81,7 @@ int arpping(u_int32_t yiaddr, u_int32_t ip, unsigned char *mac, char *interface) FD_SET(s, &fdset); tm.tv_sec = timeout; if (select(s + 1, &fdset, (fd_set *) NULL, (fd_set *) NULL, &tm) < 0) { - DEBUG(LOG_ERR, "Error on ARPING request: %s", strerror(errno)); + DEBUG(LOG_ERR, "Error on ARPING request: %m"); if (errno != EINTR) rv = 0; } else if (FD_ISSET(s, &fdset)) { if (recv(s, &arp, sizeof(arp), 0) < 0 ) rv = 0; diff --git a/networking/udhcp/clientpacket.c b/networking/udhcp/clientpacket.c index 86faec925..7debac2ef 100644 --- a/networking/udhcp/clientpacket.c +++ b/networking/udhcp/clientpacket.c @@ -35,17 +35,13 @@ #include <unistd.h> #include <netinet/in.h> #include <arpa/inet.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/stat.h> #include <fcntl.h> #include "dhcpd.h" -#include "packet.h" #include "options.h" #include "dhcpc.h" -#include "debug.h" +#include "common.h" /* Create a random xid */ @@ -58,8 +54,7 @@ unsigned long random_xid(void) fd = open("/dev/urandom", 0); if (fd < 0 || read(fd, &seed, sizeof(seed)) < 0) { - LOG(LOG_WARNING, "Could not load seed from /dev/urandom: %s", - strerror(errno)); + LOG(LOG_WARNING, "Could not load seed from /dev/urandom: %m"); seed = time(0); } if (fd >= 0) close(fd); @@ -250,4 +245,3 @@ int get_raw_packet(struct dhcpMessage *payload, int fd) return bytes - (sizeof(packet.ip) + sizeof(packet.udp)); } - diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index c97e422e2..4612c4100 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -19,9 +19,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <stdio.h> #include <sys/time.h> -#include <sys/types.h> #include <sys/file.h> #include <unistd.h> #include <getopt.h> @@ -40,11 +38,9 @@ #include "dhcpc.h" #include "options.h" #include "clientpacket.h" -#include "packet.h" #include "script.h" #include "socket.h" -#include "debug.h" -#include "pidfile.h" +#include "common.h" static int state; static unsigned long requested_ip; /* = 0 */ @@ -52,7 +48,6 @@ static unsigned long server_addr; static unsigned long timeout; static int packet_num; /* = 0 */ static int fd = -1; -static int signal_pipe[2]; #define LISTEN_NONE 0 #define LISTEN_KERNEL 1 @@ -80,34 +75,6 @@ struct client_config_t client_config = { arp: "\0\0\0\0\0\0", /* appease gcc-3.0 */ }; -#ifndef IN_BUSYBOX -static void __attribute__ ((noreturn)) bb_show_usage(void) -{ - printf( -"Usage: udhcpc [OPTIONS]\n\n" -" -c, --clientid=CLIENTID Client identifier\n" -" -H, --hostname=HOSTNAME Client hostname\n" -" -h Alias for -H\n" -" -f, --foreground Do not fork after getting lease\n" -" -b, --background Fork to background if lease cannot be\n" -" immediately negotiated.\n" -" -i, --interface=INTERFACE Interface to use (default: eth0)\n" -" -n, --now Exit with failure if lease cannot be\n" -" immediately negotiated.\n" -" -p, --pidfile=file Store process ID of daemon in file\n" -" -q, --quit Quit after obtaining lease\n" -" -r, --request=IP IP address to request (default: none)\n" -" -s, --script=file Run file at dhcp events (default:\n" -" " DEFAULT_SCRIPT ")\n" -" -v, --version Display version\n" - ); - exit(0); -} -#else -extern void bb_show_usage(void) __attribute__ ((noreturn)); -#endif - - /* just a little helper */ static void change_mode(int new_mode) { @@ -172,46 +139,15 @@ static void perform_release(void) } -/* Exit and cleanup */ -static void exit_client(int retval) -{ - pidfile_delete(client_config.pidfile); - CLOSE_LOG(); - exit(retval); -} - - -/* Signal handler */ -static void signal_handler(int sig) -{ - if (send(signal_pipe[1], &sig, sizeof(sig), MSG_DONTWAIT) < 0) { - LOG(LOG_ERR, "Could not send signal: %s", - strerror(errno)); - } -} - - -static void background(void) +static void client_background(void) { - int pid_fd; - - pid_fd = pidfile_acquire(client_config.pidfile); /* hold lock during fork. */ - while (pid_fd >= 0 && pid_fd < 3) pid_fd = dup(pid_fd); /* don't let daemon close it */ - if (daemon(0, 0) == -1) { - perror("fork"); - exit_client(1); - } + background(client_config.pidfile); client_config.foreground = 1; /* Do not fork again. */ client_config.background_if_no_lease = 0; - pidfile_write_release(pid_fd); } -#ifdef COMBINED_BINARY int udhcpc_main(int argc, char *argv[]) -#else -int main(int argc, char *argv[]) -#endif { unsigned char *temp, *message; unsigned long t1 = 0, t2 = 0, xid = 0; @@ -222,12 +158,11 @@ int main(int argc, char *argv[]) int c, len; struct dhcpMessage packet; struct in_addr temp_addr; - int pid_fd; time_t now; int max_fd; int sig; - static struct option arg_options[] = { + static const struct option arg_options[] = { {"clientid", required_argument, 0, 'c'}, {"foreground", no_argument, 0, 'f'}, {"background", no_argument, 0, 'b'}, @@ -240,7 +175,6 @@ int main(int argc, char *argv[]) {"request", required_argument, 0, 'r'}, {"script", required_argument, 0, 's'}, {"version", no_argument, 0, 'v'}, - {"help", no_argument, 0, '?'}, {0, 0, 0, 0} }; @@ -294,23 +228,18 @@ int main(int argc, char *argv[]) client_config.script = optarg; break; case 'v': - printf("udhcpcd, version %s\n\n", VERSION); - exit_client(0); + bb_error_msg("version %s\n", VERSION); + return(0); break; default: bb_show_usage(); } } - OPEN_LOG("udhcpc"); - LOG(LOG_INFO, "udhcp client (v%s) started", VERSION); - - pid_fd = pidfile_acquire(client_config.pidfile); - pidfile_write_release(pid_fd); - + start_log("client"); if (read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.arp) < 0) - exit_client(1); + return(1); if (!client_config.clientid) { client_config.clientid = xmalloc(6 + 3); @@ -321,10 +250,7 @@ int main(int argc, char *argv[]) } /* setup signal handlers */ - socketpair(AF_UNIX, SOCK_STREAM, 0, signal_pipe); - signal(SIGUSR1, signal_handler); - signal(SIGUSR2, signal_handler); - signal(SIGTERM, signal_handler); + udhcp_set_signal_pipe(SIGUSR2); state = INIT_SELECTING; run_script(NULL, "deconfig"); @@ -342,16 +268,16 @@ int main(int argc, char *argv[]) else fd = raw_socket(client_config.ifindex); if (fd < 0) { - LOG(LOG_ERR, "FATAL: couldn't listen on socket, %s", strerror(errno)); - exit_client(0); + LOG(LOG_ERR, "FATAL: couldn't listen on socket, %m"); + return(0); } } if (fd >= 0) FD_SET(fd, &rfds); - FD_SET(signal_pipe[0], &rfds); + FD_SET(udhcp_signal_pipe[0], &rfds); if (tv.tv_sec > 0) { DEBUG(LOG_INFO, "Waiting on select...\n"); - max_fd = signal_pipe[0] > fd ? signal_pipe[0] : fd; + max_fd = udhcp_signal_pipe[0] > fd ? udhcp_signal_pipe[0] : fd; retval = select(max_fd + 1, &rfds, NULL, NULL, &tv); } else retval = 0; /* If we already timed out, fall through */ @@ -372,10 +298,10 @@ int main(int argc, char *argv[]) } else { if (client_config.background_if_no_lease) { LOG(LOG_INFO, "No lease, forking to background."); - background(); + client_background(); } else if (client_config.abort_if_no_lease) { LOG(LOG_INFO, "No lease, failing."); - exit_client(1); + return(1); } /* wait to try again */ packet_num = 0; @@ -453,7 +379,7 @@ int main(int argc, char *argv[]) else len = get_raw_packet(&packet, fd); if (len == -1 && errno != EINTR) { - DEBUG(LOG_INFO, "error on read, %s, reopening socket", strerror(errno)); + DEBUG(LOG_INFO, "error on read, %m, reopening socket"); change_mode(listen_mode); /* just close and reopen */ } if (len < 0) continue; @@ -517,9 +443,9 @@ int main(int argc, char *argv[]) state = BOUND; change_mode(LISTEN_NONE); if (client_config.quit_after_lease) - exit_client(0); + return(0); if (!client_config.foreground) - background(); + client_background(); } else if (*message == DHCPNAK) { /* return to init state */ @@ -537,10 +463,9 @@ int main(int argc, char *argv[]) break; /* case BOUND, RELEASED: - ignore all packets */ } - } else if (retval > 0 && FD_ISSET(signal_pipe[0], &rfds)) { - if (read(signal_pipe[0], &sig, sizeof(sig)) < 0) { - DEBUG(LOG_ERR, "Could not read signal: %s", - strerror(errno)); + } else if (retval > 0 && FD_ISSET(udhcp_signal_pipe[0], &rfds)) { + if (read(udhcp_signal_pipe[0], &sig, sizeof(sig)) < 0) { + DEBUG(LOG_ERR, "Could not read signal: %m"); continue; /* probably just EINTR */ } switch (sig) { @@ -552,7 +477,7 @@ int main(int argc, char *argv[]) break; case SIGTERM: LOG(LOG_INFO, "Received SIGTERM"); - exit_client(0); + return(0); } } else if (retval == -1 && errno == EINTR) { /* a signal was caught */ @@ -564,4 +489,3 @@ int main(int argc, char *argv[]) } return 0; } - diff --git a/networking/udhcp/dhcpc.h b/networking/udhcp/dhcpc.h index 52157f5c8..e23d9d4fe 100644 --- a/networking/udhcp/dhcpc.h +++ b/networking/udhcp/dhcpc.h @@ -2,8 +2,6 @@ #ifndef _DHCPC_H #define _DHCPC_H -#include "libbb_udhcp.h" - #define INIT_SELECTING 0 #define REQUESTING 1 #define BOUND 2 diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c index 56ddaa942..c21cb72a2 100644 --- a/networking/udhcp/dhcpd.c +++ b/networking/udhcp/dhcpd.c @@ -25,12 +25,9 @@ #include <string.h> #include <stdlib.h> #include <sys/wait.h> -#include <sys/stat.h> #include <arpa/inet.h> #include <netdb.h> #include <netinet/in.h> -#include <stdio.h> -#include <sys/types.h> #include <sys/socket.h> #include <unistd.h> #include <signal.h> @@ -39,47 +36,21 @@ #include <time.h> #include <sys/time.h> -#include "debug.h" #include "dhcpd.h" #include "arpping.h" #include "socket.h" #include "options.h" #include "files.h" -#include "leases.h" -#include "packet.h" #include "serverpacket.h" -#include "pidfile.h" +#include "common.h" /* globals */ struct dhcpOfferedAddr *leases; struct server_config_t server_config; -static int signal_pipe[2]; - -/* Exit and cleanup */ -static void exit_server(int retval) -{ - pidfile_delete(server_config.pidfile); - CLOSE_LOG(); - exit(retval); -} - - -/* Signal handler */ -static void signal_handler(int sig) -{ - if (send(signal_pipe[1], &sig, sizeof(sig), MSG_DONTWAIT) < 0) { - LOG(LOG_ERR, "Could not send signal: %s", - strerror(errno)); - } -} -#ifdef COMBINED_BINARY int udhcpd_main(int argc, char *argv[]) -#else -int main(int argc, char *argv[]) -#endif { fd_set rfds; struct timeval tv; @@ -92,13 +63,11 @@ int main(int argc, char *argv[]) unsigned long timeout_end; struct option_set *option; struct dhcpOfferedAddr *lease; - int pid_fd; int max_sock; int sig; unsigned long num_ips; - OPEN_LOG("udhcpd"); - LOG(LOG_INFO, "udhcp server (v%s) started", VERSION); + start_log("server"); memset(&server_config, 0, sizeof(struct server_config_t)); @@ -106,9 +75,6 @@ int main(int argc, char *argv[]) read_config(DHCPD_CONF_FILE); else read_config(argv[1]); - pid_fd = pidfile_acquire(server_config.pidfile); - pidfile_write_release(pid_fd); - if ((option = find_option(server_config.options, DHCP_LEASE_TIME))) { memcpy(&server_config.lease, option->data + 2, 4); server_config.lease = ntohl(server_config.lease); @@ -118,51 +84,43 @@ int main(int argc, char *argv[]) /* Sanity check */ num_ips = ntohl(server_config.end) - ntohl(server_config.start); if (server_config.max_leases > num_ips) { - LOG(LOG_ERR, "max_leases value (%lu) not sane, setting to %lu instead", + LOG(LOG_ERR, "max_leases value (%lu) not sane, " + "setting to %lu instead", server_config.max_leases, num_ips); server_config.max_leases = num_ips; } - leases = xmalloc(sizeof(struct dhcpOfferedAddr) * server_config.max_leases); - memset(leases, 0, sizeof(struct dhcpOfferedAddr) * server_config.max_leases); + leases = xcalloc(sizeof(struct dhcpOfferedAddr), server_config.max_leases); read_leases(server_config.lease_file); if (read_interface(server_config.interface, &server_config.ifindex, &server_config.server, server_config.arp) < 0) - exit_server(1); + return(1); -#ifndef DEBUGGING - pid_fd = pidfile_acquire(server_config.pidfile); /* hold lock during fork. */ - if (daemon(0, 0) == -1) { - perror("fork"); - exit_server(1); - } - pidfile_write_release(pid_fd); +#ifndef CONFIG_FEATURE_UDHCP_DEBUG + background(server_config.pidfile); #endif - - socketpair(AF_UNIX, SOCK_STREAM, 0, signal_pipe); - signal(SIGUSR1, signal_handler); - signal(SIGTERM, signal_handler); + udhcp_set_signal_pipe(0); timeout_end = time(0) + server_config.auto_time; while(1) { /* loop until universe collapses */ if (server_socket < 0) if ((server_socket = listen_socket(INADDR_ANY, SERVER_PORT, server_config.interface)) < 0) { - LOG(LOG_ERR, "FATAL: couldn't create server socket, %s", strerror(errno)); - exit_server(0); + LOG(LOG_ERR, "FATAL: couldn't create server socket, %m"); + return(2); } FD_ZERO(&rfds); FD_SET(server_socket, &rfds); - FD_SET(signal_pipe[0], &rfds); + FD_SET(udhcp_signal_pipe[0], &rfds); if (server_config.auto_time) { tv.tv_sec = timeout_end - time(0); tv.tv_usec = 0; } if (!server_config.auto_time || tv.tv_sec > 0) { - max_sock = server_socket > signal_pipe[0] ? server_socket : signal_pipe[0]; + max_sock = server_socket > udhcp_signal_pipe[0] ? server_socket : udhcp_signal_pipe[0]; retval = select(max_sock + 1, &rfds, NULL, NULL, server_config.auto_time ? &tv : NULL); } else retval = 0; /* If we already timed out, fall through */ @@ -176,8 +134,8 @@ int main(int argc, char *argv[]) continue; } - if (FD_ISSET(signal_pipe[0], &rfds)) { - if (read(signal_pipe[0], &sig, sizeof(sig)) < 0) + if (FD_ISSET(udhcp_signal_pipe[0], &rfds)) { + if (read(udhcp_signal_pipe[0], &sig, sizeof(sig)) < 0) continue; /* probably just EINTR */ switch (sig) { case SIGUSR1: @@ -188,13 +146,13 @@ int main(int argc, char *argv[]) continue; case SIGTERM: LOG(LOG_INFO, "Received a SIGTERM"); - exit_server(0); + return(0); } } if ((bytes = get_packet(&packet, server_socket)) < 0) { /* this waits for a packet - idle */ if (bytes == -1 && errno != EINTR) { - DEBUG(LOG_INFO, "error on read, %s, reopening socket", strerror(errno)); + DEBUG(LOG_INFO, "error on read, %m, reopening socket"); close(server_socket); server_socket = -1; } @@ -293,4 +251,3 @@ int main(int argc, char *argv[]) return 0; } - diff --git a/networking/udhcp/dhcpd.h b/networking/udhcp/dhcpd.h index 5debc8388..e219143cc 100644 --- a/networking/udhcp/dhcpd.h +++ b/networking/udhcp/dhcpd.h @@ -5,9 +5,7 @@ #include <netinet/ip.h> #include <netinet/udp.h> -#include "libbb_udhcp.h" #include "leases.h" -#include "version.h" /************************************/ /* Defaults _you_ may want to tweak */ diff --git a/networking/udhcp/dumpleases.c b/networking/udhcp/dumpleases.c index 014f73f9d..4c6107cf7 100644 --- a/networking/udhcp/dumpleases.c +++ b/networking/udhcp/dumpleases.c @@ -1,79 +1,55 @@ #include <fcntl.h> #include <string.h> #include <stdlib.h> -#include <stdio.h> #include <sys/wait.h> -#include <sys/stat.h> #include <arpa/inet.h> #include <netdb.h> #include <netinet/in.h> #include <stdio.h> -#include <sys/types.h> #include <sys/socket.h> #include <unistd.h> -#include <syslog.h> -#include <signal.h> -#include <errno.h> #include <getopt.h> #include <time.h> -#include "libbb_udhcp.h" +#include "leases.h" +#include "busybox.h" #define REMAINING 0 #define ABSOLUTE 1 -struct lease_t { - unsigned char chaddr[16]; - u_int32_t yiaddr; - u_int32_t expires; -}; - -#ifdef IN_BUSYBOX int dumpleases_main(int argc, char *argv[]) -#else -int main(int argc, char *argv[]) -#endif { FILE *fp; int i, c, mode = REMAINING; long expires; - char file[255] = "/var/lib/misc/udhcpd.leases"; - struct lease_t lease; + const char *file = leases_file; + struct dhcpOfferedAddr lease; struct in_addr addr; - static struct option options[] = { + static const struct option options[] = { {"absolute", 0, 0, 'a'}, {"remaining", 0, 0, 'r'}, {"file", 1, 0, 'f'}, - {"help", 0, 0, 'h'}, {0, 0, 0, 0} }; while (1) { int option_index = 0; - c = getopt_long(argc, argv, "arf:h", options, &option_index); + c = getopt_long(argc, argv, "arf:", options, &option_index); if (c == -1) break; switch (c) { case 'a': mode = ABSOLUTE; break; case 'r': mode = REMAINING; break; case 'f': - strncpy(file, optarg, 255); - file[254] = '\0'; - break; - case 'h': - printf("Usage: dumpleases -f <file> -[r|a]\n\n"); - printf(" -f, --file=FILENAME Leases file to load\n"); - printf(" -r, --remaining Interepret lease times as time remaing\n"); - printf(" -a, --absolute Interepret lease times as expire time\n"); + file = optarg; break; + default: + bb_show_usage(); } } - if (!(fp = fopen(file, "r"))) { - perror("could not open input file"); - return 0; - } + fp = bb_xfopen(file, "r"); printf("Mac Address IP-Address Expires %s\n", mode == REMAINING ? "in" : "at"); /* "00:00:00:00:00:00 255.255.255.255 Wed Jun 30 21:49:08 1993" */ diff --git a/networking/udhcp/files.c b/networking/udhcp/files.c index 842e0f2db..3d0344b09 100644 --- a/networking/udhcp/files.c +++ b/networking/udhcp/files.c @@ -3,23 +3,20 @@ * Rewrite by Russ Dill <Russ.Dill@asu.edu> July 2001 */ -#include <stdio.h> #include <sys/socket.h> #include <arpa/inet.h> #include <string.h> #include <stdlib.h> #include <time.h> #include <ctype.h> -#include <netdb.h> -#include "debug.h" #include "dhcpd.h" #include "files.h" #include "options.h" -#include "leases.h" +#include "common.h" /* on these functions, make sure you datatype matches */ -static int read_ip(char *line, void *arg) +static int read_ip(const char *line, void *arg) { struct in_addr *addr = arg; struct hostent *host; @@ -34,7 +31,7 @@ static int read_ip(char *line, void *arg) } -static int read_str(char *line, void *arg) +static int read_str(const char *line, void *arg) { char **dest = arg; @@ -45,7 +42,7 @@ static int read_str(char *line, void *arg) } -static int read_u32(char *line, void *arg) +static int read_u32(const char *line, void *arg) { u_int32_t *dest = arg; char *endptr; @@ -54,7 +51,7 @@ static int read_u32(char *line, void *arg) } -static int read_yn(char *line, void *arg) +static int read_yn(const char *line, void *arg) { char *dest = arg; int retval = 1; @@ -68,32 +65,33 @@ static int read_yn(char *line, void *arg) return retval; } +#define READ_CONFIG_BUF_SIZE 512 /* domainname may have 254 chars */ /* read a dhcp option and add it to opt_list */ -static int read_opt(char *line, void *arg) +static int read_opt(const char *const_line, void *arg) { + char line[READ_CONFIG_BUF_SIZE]; struct option_set **opt_list = arg; char *opt, *val, *endptr; - struct dhcp_option *option = NULL; - int retval = 0, length = 0; - char buffer[255]; + struct dhcp_option *option; + int retval = 0, length; + char buffer[256]; /* max opt length */ u_int16_t result_u16; u_int32_t result_u32; - int i; - - if (!(opt = strtok(line, " \t="))) return 0; + void *valptr; - for (i = 0; options[i].code; i++) - if (!strcmp(options[i].name, opt)) - option = &(options[i]); + if ((opt = strtok(strcpy(line, const_line), " \t="))) { - if (!option) return 0; + for (option = options; option->code; option++) + if (!strcasecmp(option->name, opt)) + break; - do { + if (option->code) do { val = strtok(NULL, ", \t"); - if (val) { + if(!val) + break; length = option_lengths[option->flags & TYPE_MASK]; - retval = 0; + valptr = NULL; switch (option->flags & TYPE_MASK) { case OPTION_IP: retval = read_ip(val, buffer); @@ -107,8 +105,9 @@ static int read_opt(char *line, void *arg) length = strlen(val); if (length > 0) { if (length > 254) length = 254; - memcpy(buffer, val, length); - retval = 1; + endptr = buffer + length; + endptr[0] = 0; + valptr = val; } break; case OPTION_BOOLEAN: @@ -116,41 +115,44 @@ static int read_opt(char *line, void *arg) break; case OPTION_U8: buffer[0] = strtoul(val, &endptr, 0); - retval = (endptr[0] == '\0'); + valptr = buffer; break; case OPTION_U16: result_u16 = htons(strtoul(val, &endptr, 0)); - memcpy(buffer, &result_u16, 2); - retval = (endptr[0] == '\0'); + valptr = &result_u16; break; case OPTION_S16: result_u16 = htons(strtol(val, &endptr, 0)); - memcpy(buffer, &result_u16, 2); - retval = (endptr[0] == '\0'); + valptr = &result_u16; break; case OPTION_U32: result_u32 = htonl(strtoul(val, &endptr, 0)); - memcpy(buffer, &result_u32, 4); - retval = (endptr[0] == '\0'); + valptr = &result_u32; break; case OPTION_S32: result_u32 = htonl(strtol(val, &endptr, 0)); - memcpy(buffer, &result_u32, 4); - retval = (endptr[0] == '\0'); + valptr = &result_u32; break; default: + retval = 0; break; } + if(valptr) { + memcpy(buffer, valptr, length); + retval = (endptr[0] == '\0'); + } if (retval) attach_option(opt_list, option, buffer, length); - }; - } while (val && retval && option->flags & OPTION_LIST); + else + break; + } while (option->flags & OPTION_LIST); + } return retval; } -static struct config_keyword keywords[] = { - /* keyword[14] handler variable address default[20] */ +static const struct config_keyword keywords[] = { + /* keyword handler variable address default */ {"start", read_ip, &(server_config.start), "192.168.0.20"}, {"end", read_ip, &(server_config.end), "192.168.0.254"}, {"interface", read_str, &(server_config.interface), "eth0"}, @@ -163,7 +165,7 @@ static struct config_keyword keywords[] = { {"conflict_time",read_u32,&(server_config.conflict_time),"3600"}, {"offer_time", read_u32, &(server_config.offer_time), "60"}, {"min_lease", read_u32, &(server_config.min_lease), "60"}, - {"lease_file", read_str, &(server_config.lease_file), "/var/lib/misc/udhcpd.leases"}, + {"lease_file", read_str, &(server_config.lease_file), leases_file}, {"pidfile", read_str, &(server_config.pidfile), "/var/run/udhcpd.pid"}, {"notify_file", read_str, &(server_config.notify_file), ""}, {"siaddr", read_ip, &(server_config.siaddr), "0.0.0.0"}, @@ -174,14 +176,15 @@ static struct config_keyword keywords[] = { }; -int read_config(char *file) +int read_config(const char *file) { FILE *in; - char buffer[80], orig[80], *token, *line; + char buffer[READ_CONFIG_BUF_SIZE], orig[READ_CONFIG_BUF_SIZE]; + char *token, *line; int i; - for (i = 0; strlen(keywords[i].keyword); i++) - if (strlen(keywords[i].def)) + for (i = 0; keywords[i].keyword[0]; i++) + if (keywords[i].def[0]) keywords[i].handler(keywords[i].def, keywords[i].var); if (!(in = fopen(file, "r"))) { @@ -189,24 +192,25 @@ int read_config(char *file) return 0; } - while (fgets(buffer, 80, in)) { + while (fgets(buffer, READ_CONFIG_BUF_SIZE, in)) { if (strchr(buffer, '\n')) *(strchr(buffer, '\n')) = '\0'; - strncpy(orig, buffer, 80); + strcpy(orig, buffer); if (strchr(buffer, '#')) *(strchr(buffer, '#')) = '\0'; - token = buffer + strspn(buffer, " \t"); - if (*token == '\0') continue; - line = token + strcspn(token, " \t="); - if (*line == '\0') continue; - *line = '\0'; + token = strtok(buffer, " \t"); + if(!token) + continue; + line = strtok(NULL, ""); + if(!line) + continue; + while(*line == '=' || isspace(*line)) line++; - - /* eat leading whitespace */ - line = line + strspn(line, " \t="); /* eat trailing whitespace */ for (i = strlen(line); i > 0 && isspace(line[i - 1]); i--); line[i] = '\0'; + if (*line == '\0') + continue; - for (i = 0; strlen(keywords[i].keyword); i++) + for (i = 0; keywords[i].keyword[0]; i++) if (!strcasecmp(token, keywords[i].keyword)) if (!keywords[i].handler(line, keywords[i].var)) { LOG(LOG_ERR, "unable to parse '%s'", orig); @@ -233,16 +237,17 @@ void write_leases(void) } for (i = 0; i < server_config.max_leases; i++) { + struct dhcpOfferedAddr lease; if (leases[i].yiaddr != 0) { if (server_config.remaining) { if (lease_expired(&(leases[i]))) lease_time = 0; else lease_time = leases[i].expires - curr; } else lease_time = leases[i].expires; - lease_time = htonl(lease_time); - fwrite(leases[i].chaddr, 16, 1, fp); - fwrite(&(leases[i].yiaddr), 4, 1, fp); - fwrite(&lease_time, 4, 1, fp); + lease.expires = htonl(lease_time); + memcpy(lease.chaddr, leases[i].chaddr, 16); + lease.yiaddr = leases[i].yiaddr; + fwrite(leases, sizeof(lease), 1, fp); } } fclose(fp); @@ -254,7 +259,7 @@ void write_leases(void) } -void read_leases(char *file) +void read_leases(const char *file) { FILE *fp; unsigned int i = 0; @@ -280,5 +285,3 @@ void read_leases(char *file) DEBUG(LOG_INFO, "Read %d leases", i); fclose(fp); } - - diff --git a/networking/udhcp/files.h b/networking/udhcp/files.h index 1f2638fe9..279738adf 100644 --- a/networking/udhcp/files.h +++ b/networking/udhcp/files.h @@ -3,15 +3,15 @@ #define _FILES_H struct config_keyword { - char keyword[14]; - int (*handler)(char *line, void *var); + const char *keyword; + int (* const handler)(const char *line, void *var); void *var; - char def[30]; + const char *def; }; -int read_config(char *file); +int read_config(const char *file); void write_leases(void); -void read_leases(char *file); +void read_leases(const char *file); #endif diff --git a/networking/udhcp/leases.c b/networking/udhcp/leases.c index 7ade91d93..0b6b409cd 100644 --- a/networking/udhcp/leases.c +++ b/networking/udhcp/leases.c @@ -9,12 +9,12 @@ #include <netinet/in.h> #include <arpa/inet.h> -#include "debug.h" #include "dhcpd.h" #include "files.h" #include "options.h" -#include "leases.h" #include "arpping.h" +#include "common.h" + unsigned char blank_chaddr[] = {[0 ... 15] = 0}; @@ -102,6 +102,20 @@ struct dhcpOfferedAddr *find_lease_by_yiaddr(u_int32_t yiaddr) } +/* check is an IP is taken, if it is, add it to the lease table */ +static int check_ip(u_int32_t addr) +{ + struct in_addr temp; + + if (arpping(addr, server_config.server, server_config.arp, server_config.interface) == 0) { + temp.s_addr = addr; + LOG(LOG_INFO, "%s belongs to someone, reserving it for %ld seconds", + inet_ntoa(temp), server_config.conflict_time); + add_lease(blank_chaddr, addr, server_config.conflict_time); + return 1; + } else return 0; +} + /* find an assignable address, it check_expired is true, we check all the expired leases as well. * Maybe this should try expired leases by age... */ u_int32_t find_address(int check_expired) @@ -133,19 +147,3 @@ u_int32_t find_address(int check_expired) } return 0; } - - -/* check is an IP is taken, if it is, add it to the lease table */ -int check_ip(u_int32_t addr) -{ - struct in_addr temp; - - if (arpping(addr, server_config.server, server_config.arp, server_config.interface) == 0) { - temp.s_addr = addr; - LOG(LOG_INFO, "%s belongs to someone, reserving it for %ld seconds", - inet_ntoa(temp), server_config.conflict_time); - add_lease(blank_chaddr, addr, server_config.conflict_time); - return 1; - } else return 0; -} - diff --git a/networking/udhcp/leases.h b/networking/udhcp/leases.h index bc50f68de..d54cd11cc 100644 --- a/networking/udhcp/leases.h +++ b/networking/udhcp/leases.h @@ -9,6 +9,8 @@ struct dhcpOfferedAddr { u_int32_t expires; /* host order */ }; +extern const char leases_file[]; + extern unsigned char blank_chaddr[]; void clear_lease(u_int8_t *chaddr, u_int32_t yiaddr); @@ -18,7 +20,6 @@ struct dhcpOfferedAddr *oldest_expired_lease(void); struct dhcpOfferedAddr *find_lease_by_chaddr(u_int8_t *chaddr); struct dhcpOfferedAddr *find_lease_by_yiaddr(u_int32_t yiaddr); u_int32_t find_address(int check_expired); -int check_ip(u_int32_t addr); #endif diff --git a/networking/udhcp/options.c b/networking/udhcp/options.c index 9f95c1558..a3edd0b8b 100644 --- a/networking/udhcp/options.c +++ b/networking/udhcp/options.c @@ -3,15 +3,13 @@ * Rewrite by Russ Dill <Russ.Dill@asu.edu> July 2001 */ -#include <stdio.h> #include <stdlib.h> #include <string.h> -#include "debug.h" #include "dhcpd.h" #include "files.h" #include "options.h" -#include "leases.h" +#include "common.h" /* supported options are easily added here */ diff --git a/networking/udhcp/packet.c b/networking/udhcp/packet.c index d9f715971..0f2a3bc6f 100644 --- a/networking/udhcp/packet.c +++ b/networking/udhcp/packet.c @@ -14,10 +14,9 @@ #endif #include <errno.h> -#include "packet.h" -#include "debug.h" #include "dhcpd.h" #include "options.h" +#include "common.h" void init_header(struct dhcpMessage *packet, char type) @@ -123,7 +122,7 @@ int raw_packet(struct dhcpMessage *payload, u_int32_t source_ip, int source_port struct udp_dhcp_packet packet; if ((fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP))) < 0) { - DEBUG(LOG_ERR, "socket call failed: %s", strerror(errno)); + DEBUG(LOG_ERR, "socket call failed: %m"); return -1; } @@ -136,7 +135,7 @@ int raw_packet(struct dhcpMessage *payload, u_int32_t source_ip, int source_port dest.sll_halen = 6; memcpy(dest.sll_addr, dest_arp, 6); if (bind(fd, (struct sockaddr *)&dest, sizeof(struct sockaddr_ll)) < 0) { - DEBUG(LOG_ERR, "bind call failed: %s", strerror(errno)); + DEBUG(LOG_ERR, "bind call failed: %m"); close(fd); return -1; } @@ -159,7 +158,7 @@ int raw_packet(struct dhcpMessage *payload, u_int32_t source_ip, int source_port result = sendto(fd, &packet, sizeof(struct udp_dhcp_packet), 0, (struct sockaddr *) &dest, sizeof(dest)); if (result <= 0) { - DEBUG(LOG_ERR, "write on socket failed: %s", strerror(errno)); + DEBUG(LOG_ERR, "write on socket failed: %m"); } close(fd); return result; @@ -200,4 +199,3 @@ int kernel_packet(struct dhcpMessage *payload, u_int32_t source_ip, int source_p close(fd); return result; } - diff --git a/networking/udhcp/script.c b/networking/udhcp/script.c index 48ff8e07e..41b680d6b 100644 --- a/networking/udhcp/script.c +++ b/networking/udhcp/script.c @@ -28,17 +28,15 @@ #include <arpa/inet.h> #include <sys/types.h> #include <sys/wait.h> -#include <errno.h> #include "options.h" #include "dhcpd.h" #include "dhcpc.h" -#include "packet.h" #include "options.h" -#include "debug.h" +#include "common.h" /* get a rough idea of how long an option will be (rounding up...) */ -static int max_option_length[] = { +static const int max_option_length[] = { [OPTION_IP] = sizeof("255.255.255.255 "), [OPTION_IP_PAIR] = sizeof("255.255.255.255 ") * 2, [OPTION_STRING] = 1, @@ -51,16 +49,21 @@ static int max_option_length[] = { }; -static int upper_length(int length, struct dhcp_option *option) +static inline int upper_length(int length, int opt_index) { - return max_option_length[option->flags & TYPE_MASK] * - (length / option_lengths[option->flags & TYPE_MASK]); + return max_option_length[opt_index] * + (length / option_lengths[opt_index]); } -static int sprintip(char *dest, char *pre, unsigned char *ip) +static int sprintip(char *dest, unsigned char *ip) { - return sprintf(dest, "%s%d.%d.%d.%d", pre, ip[0], ip[1], ip[2], ip[3]); + return sprintf(dest, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]); +} + +static void asprintip(char **dest, char *pre, unsigned char *ip) +{ + asprintf(dest, "%s%d.%d.%d.%d", pre, ip[0], ip[1], ip[2], ip[3]); } @@ -93,12 +96,12 @@ static void fill_options(char *dest, unsigned char *option, struct dhcp_option * for(;;) { switch (type) { case OPTION_IP_PAIR: - dest += sprintip(dest, "", option); + dest += sprintip(dest, option); *(dest++) = '/'; option += 4; optlen = 4; case OPTION_IP: /* Works regardless of host byte order. */ - dest += sprintip(dest, "", option); + dest += sprintip(dest, option); break; case OPTION_BOOLEAN: dest += sprintf(dest, *option ? "yes" : "no"); @@ -137,15 +140,10 @@ static void fill_options(char *dest, unsigned char *option, struct dhcp_option * static char *find_env(const char *prefix, char *defaultstr) { - extern char **environ; - char **ptr; - const int len = strlen(prefix); + char *ptr; - for (ptr = environ; *ptr != NULL; ptr++) { - if (strncmp(prefix, *ptr, len) == 0) - return *ptr; - } - return defaultstr; + ptr = getenv(prefix); + return ptr ? ptr : defaultstr; } @@ -174,8 +172,7 @@ static char **fill_envp(struct dhcpMessage *packet) envp = xmalloc((num_options + 5) * sizeof(char *)); j = 0; - envp[j++] = xmalloc(sizeof("interface=") + strlen(client_config.interface)); - sprintf(envp[0], "interface=%s", client_config.interface); + asprintf(&envp[j++], "interface=%s", client_config.interface); envp[j++] = find_env("PATH", "PATH=/bin:/usr/bin:/sbin:/usr/sbin"); envp[j++] = find_env("HOME", "HOME=/"); @@ -184,38 +181,33 @@ static char **fill_envp(struct dhcpMessage *packet) return envp; } - envp[j] = xmalloc(sizeof("ip=255.255.255.255")); - sprintip(envp[j++], "ip=", (unsigned char *) &packet->yiaddr); + asprintip(&envp[j++], "ip=", (unsigned char *) &packet->yiaddr); for (i = 0; options[i].code; i++) { if (!(temp = get_option(packet, options[i].code))) continue; - envp[j] = xmalloc(upper_length(temp[OPT_LEN - 2], &options[i]) + strlen(options[i].name) + 2); + envp[j] = xmalloc(upper_length(temp[OPT_LEN - 2], options[i].flags & TYPE_MASK) + strlen(options[i].name) + 2); fill_options(envp[j++], temp, &options[i]); /* Fill in a subnet bits option for things like /24 */ if (options[i].code == DHCP_SUBNET) { - envp[j] = xmalloc(sizeof("mask=32")); memcpy(&subnet, temp, 4); - sprintf(envp[j++], "mask=%d", mton(&subnet)); + asprintf(&envp[j++], "mask=%d", mton(&subnet)); } } if (packet->siaddr) { - envp[j] = xmalloc(sizeof("siaddr=255.255.255.255")); - sprintip(envp[j++], "siaddr=", (unsigned char *) &packet->siaddr); + asprintip(&envp[j++], "siaddr=", (unsigned char *) &packet->siaddr); } if (!(over & FILE_FIELD) && packet->file[0]) { /* watch out for invalid packets */ packet->file[sizeof(packet->file) - 1] = '\0'; - envp[j] = xmalloc(sizeof("boot_file=") + strlen(packet->file)); - sprintf(envp[j++], "boot_file=%s", packet->file); + asprintf(&envp[j++], "boot_file=%s", packet->file); } if (!(over & SNAME_FIELD) && packet->sname[0]) { /* watch out for invalid packets */ packet->sname[sizeof(packet->sname) - 1] = '\0'; - envp[j] = xmalloc(sizeof("sname=") + strlen(packet->sname)); - sprintf(envp[j++], "sname=%s", packet->sname); + asprintf(&envp[j++], "sname=%s", packet->sname); } envp[j] = NULL; return envp; @@ -245,8 +237,7 @@ void run_script(struct dhcpMessage *packet, const char *name) DEBUG(LOG_INFO, "execle'ing %s", client_config.script); execle(client_config.script, client_config.script, name, NULL, envp); - LOG(LOG_ERR, "script %s failed: %s", - client_config.script, strerror(errno)); + LOG(LOG_ERR, "script %s failed: %m", client_config.script); exit(1); } } diff --git a/networking/udhcp/serverpacket.c b/networking/udhcp/serverpacket.c index e969c7af8..09682444e 100644 --- a/networking/udhcp/serverpacket.c +++ b/networking/udhcp/serverpacket.c @@ -25,11 +25,9 @@ #include <string.h> #include <time.h> -#include "packet.h" -#include "debug.h" #include "dhcpd.h" #include "options.h" -#include "leases.h" +#include "common.h" /* send a packet to giaddr using the kernel ip stack */ static int send_packet_to_relay(struct dhcpMessage *payload) @@ -258,6 +256,3 @@ int send_inform(struct dhcpMessage *oldpacket) return send_packet(&packet, 0); } - - - diff --git a/networking/udhcp/socket.c b/networking/udhcp/socket.c index 3a2261561..a51a74369 100644 --- a/networking/udhcp/socket.c +++ b/networking/udhcp/socket.c @@ -41,7 +41,7 @@ #include <linux/if_ether.h> #endif -#include "debug.h" +#include "common.h" int read_interface(char *interface, int *ifindex, u_int32_t *addr, unsigned char *arp) { @@ -60,8 +60,7 @@ int read_interface(char *interface, int *ifindex, u_int32_t *addr, unsigned char *addr = our_ip->sin_addr.s_addr; DEBUG(LOG_INFO, "%s (our ip) = %s", ifr.ifr_name, inet_ntoa(our_ip->sin_addr)); } else { - LOG(LOG_ERR, "SIOCGIFADDR failed, is the interface up and configured?: %s", - strerror(errno)); + LOG(LOG_ERR, "SIOCGIFADDR failed, is the interface up and configured?: %m"); return -1; } } @@ -70,7 +69,7 @@ int read_interface(char *interface, int *ifindex, u_int32_t *addr, unsigned char DEBUG(LOG_INFO, "adapter index %d", ifr.ifr_ifindex); *ifindex = ifr.ifr_ifindex; } else { - LOG(LOG_ERR, "SIOCGIFINDEX failed!: %s", strerror(errno)); + LOG(LOG_ERR, "SIOCGIFINDEX failed!: %m"); return -1; } if (ioctl(fd, SIOCGIFHWADDR, &ifr) == 0) { @@ -78,11 +77,11 @@ int read_interface(char *interface, int *ifindex, u_int32_t *addr, unsigned char DEBUG(LOG_INFO, "adapter hardware address %02x:%02x:%02x:%02x:%02x:%02x", arp[0], arp[1], arp[2], arp[3], arp[4], arp[5]); } else { - LOG(LOG_ERR, "SIOCGIFHWADDR failed!: %s", strerror(errno)); + LOG(LOG_ERR, "SIOCGIFHWADDR failed!: %m"); return -1; } } else { - LOG(LOG_ERR, "socket failed!: %s", strerror(errno)); + LOG(LOG_ERR, "socket failed!: %m"); return -1; } close(fd); @@ -99,7 +98,7 @@ int listen_socket(unsigned int ip, int port, char *inf) DEBUG(LOG_INFO, "Opening listen socket on 0x%08x:%d %s\n", ip, port, inf); if ((fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) { - DEBUG(LOG_ERR, "socket call failed: %s", strerror(errno)); + DEBUG(LOG_ERR, "socket call failed: %m"); return -1; } @@ -139,7 +138,7 @@ int raw_socket(int ifindex) DEBUG(LOG_INFO, "Opening raw socket on ifindex %d\n", ifindex); if ((fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP))) < 0) { - DEBUG(LOG_ERR, "socket call failed: %s", strerror(errno)); + DEBUG(LOG_ERR, "socket call failed: %m"); return -1; } @@ -147,11 +146,10 @@ int raw_socket(int ifindex) sock.sll_protocol = htons(ETH_P_IP); sock.sll_ifindex = ifindex; if (bind(fd, (struct sockaddr *) &sock, sizeof(sock)) < 0) { - DEBUG(LOG_ERR, "bind call failed: %s", strerror(errno)); + DEBUG(LOG_ERR, "bind call failed: %m"); close(fd); return -1; } return fd; } - |