diff options
Diffstat (limited to 'erts/epmd/src/epmd.c')
| -rw-r--r-- | erts/epmd/src/epmd.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 65ff0cd6b2..c503c8c8cf 100644 --- a/erts/epmd/src/epmd.c +++ b/erts/epmd/src/epmd.c @@ -33,6 +33,7 @@ static void usage(EpmdVars *); static void run_daemon(EpmdVars*); +static char* get_addresses(void); static int get_port_no(void); static int check_relaxed(void); #ifdef __WIN32__ @@ -133,6 +134,7 @@ int main(int argc, char** argv) { EpmdVars g_empd_vars; EpmdVars *g = &g_empd_vars; + int i; #ifdef __WIN32__ WORD wVersionRequested; WSADATA wsaData; @@ -158,8 +160,9 @@ int main(int argc, char** argv) g->argv = NULL; #endif - g->port = get_port_no(); - g->debug = 0; + g->addresses = get_addresses(); + g->port = get_port_no(); + g->debug = 0; g->silent = 0; g->is_daemon = 0; @@ -168,12 +171,14 @@ int main(int argc, char** argv) g->delay_accept = 0; g->delay_write = 0; g->progname = argv[0]; - g->listenfd = -1; g->conn = NULL; g->nodes.reg = g->nodes.unreg = g->nodes.unreg_tail = NULL; g->nodes.unreg_count = 0; g->active_conn = 0; + for (i = 0; i < MAX_LISTEN_SOCKETS; i++) + g->listenfd[i] = -1; + argc--; argv++; while (argc > 0) { @@ -208,6 +213,11 @@ int main(int argc, char** argv) else usage(g); epmd_cleanup_exit(g,0); + } else if (strcmp(argv[0], "-address") == 0) { + if (argc == 1) + usage(g); + g->addresses = argv[1]; + argv += 2; argc -= 2; } else if (strcmp(argv[0], "-port") == 0) { if ((argc == 1) || ((g->port = atoi(argv[1])) == 0)) @@ -252,13 +262,10 @@ int main(int argc, char** argv) /* * max_conn must not be greater than FD_SETSIZE. * (at least QNX crashes) - * - * More correctly, it must be FD_SETSIZE - 1, beacuse the - * listen FD is stored outside the connection array. */ if (g->max_conn > FD_SETSIZE) { - g->max_conn = FD_SETSIZE - 1; + g->max_conn = FD_SETSIZE; } if (g->is_daemon) { @@ -393,11 +400,14 @@ static void run_daemon(EpmdVars *g) static void usage(EpmdVars *g) { - fprintf(stderr, "usage: epmd [-d|-debug] [DbgExtra...] [-port No] [-daemon]\n"); - fprintf(stderr, " [-relaxed_command_check]\n"); + fprintf(stderr, "usage: epmd [-d|-debug] [DbgExtra...] [-address List]\n"); + fprintf(stderr, " [-port No] [-daemon] [-relaxed_command_check]\n"); fprintf(stderr, " epmd [-d|-debug] [-port No] [-names|-kill|-stop name]\n\n"); fprintf(stderr, "See the Erlang epmd manual page for info about the usage.\n\n"); fprintf(stderr, "Regular options\n"); + fprintf(stderr, " -address List\n"); + fprintf(stderr, " Let epmd listen only on the comma-separated list of IP\n"); + fprintf(stderr, " addresses (and on the loopback interface).\n"); fprintf(stderr, " -port No\n"); fprintf(stderr, " Let epmd listen to another port than default %d\n", EPMD_PORT_NO); @@ -433,7 +443,7 @@ static void usage(EpmdVars *g) fprintf(stderr, " List names registered with the currently " "running epmd\n"); fprintf(stderr, " -kill\n"); - fprintf(stderr, " Kill the currently runniing epmd\n"); + fprintf(stderr, " Kill the currently running epmd\n"); fprintf(stderr, " (only allowed if -names show empty database or\n"); fprintf(stderr, " -relaxed_command_check was given when epmd was started).\n"); fprintf(stderr, " -stop Name\n"); @@ -555,8 +565,9 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval) epmd_conn_close(g,&g->conn[i]); free(g->conn); } - if(g->listenfd >= 0) - close(g->listenfd); + for(i=0; i < MAX_LISTEN_SOCKETS; i++) + if(g->listenfd[i] >= 0) + close(g->listenfd[i]); free_all_nodes(g); if(g->argv){ for(i=0; g->argv[i] != NULL; ++i) @@ -568,6 +579,10 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval) exit(exitval); } +static char* get_addresses(void) +{ + return getenv("ERL_EPMD_ADDRESS"); +} static int get_port_no(void) { char* port_str = getenv("ERL_EPMD_PORT"); |