From b363d7d34a0d5b61131a7edaec2180c6b5103544 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Holger=20Wei=C3=9F?= Date: Sat, 13 Nov 2010 23:15:07 +0100 Subject: Fix epmd's dbg_perror() output The dbg_perror() function now hands the current errno value over to dbg_gen_printf(). This fixes the problem that errno had been reset to zero by the time it was used (to print the corresponding error message) in the dbg_gen_printf() function. --- erts/epmd/src/epmd.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'erts/epmd') diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 65ff0cd6b2..47ee4f1150 100644 --- a/erts/epmd/src/epmd.c +++ b/erts/epmd/src/epmd.c @@ -487,8 +487,8 @@ static void dbg_gen_printf(int onsyslog,int perr,int from_level, (int) strlen(timestr)-1, timestr); len = strlen(buf); erts_vsnprintf(buf + len, DEBUG_BUFFER_SIZE - len, format, args); - if (perr == 1) - perror(buf); + if (perr != 0) + fprintf(stderr,"%s: %s\r\n",buf,strerror(perr)); else fprintf(stderr,"%s\r\n",buf); } @@ -499,7 +499,7 @@ void dbg_perror(EpmdVars *g,const char *format,...) { va_list args; va_start(args, format); - dbg_gen_printf(1,1,0,g,format,args); + dbg_gen_printf(1,errno,0,g,format,args); va_end(args); } -- cgit v1.2.3 From 7ed11a886fc8fcaf3c2b8324294e2f24e02b0f28 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Holger=20Wei=C3=9F?= Date: Mon, 15 Nov 2010 12:05:16 +0100 Subject: Call chmod without the "-f" flag "-f" is a non-standard chmod option which at least SGI IRIX and HP UX do not support. As the only effect of the "-f" flag is to suppress warning messages, it can be safely omitted. --- erts/epmd/test/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'erts/epmd') diff --git a/erts/epmd/test/Makefile b/erts/epmd/test/Makefile index 13dad09ae3..54688fd90b 100644 --- a/erts/epmd/test/Makefile +++ b/erts/epmd/test/Makefile @@ -74,7 +74,7 @@ release_tests_spec: opt $(INSTALL_DIR) $(RELEPMDDIR) $(INSTALL_DATA) epmd.spec epmd.spec.vxworks $(ERL_FILES) \ $(EMAKEFILE) $(RELEPMDDIR) - chmod -f -R u+w $(RELEPMDDIR) + chmod -R u+w $(RELEPMDDIR) release_docs_spec: -- cgit v1.2.3 From bcf3b3d0d589666575d9b044d0779be2e40e1762 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Holger=20Wei=C3=9F?= Date: Wed, 10 Nov 2010 23:03:44 +0100 Subject: Allow user to specify the IP address epmd binds to The IP address(es) epmd binds to can now be specified by the user, either via epmd's new "-address" option or (if that's not used) by setting the environment variable ERL_EPMD_ADDRESS. Multiple addresses may be specified using a comma-separated list. If the loopback address is not in this list, it will be added implicitly, so that the daemon can be queried by an interactive epmd process. --- erts/epmd/src/epmd.c | 37 ++++++--- erts/epmd/src/epmd_cli.c | 2 +- erts/epmd/src/epmd_int.h | 59 +++++++------- erts/epmd/src/epmd_srv.c | 207 +++++++++++++++++++++++++++++++---------------- 4 files changed, 195 insertions(+), 110 deletions(-) (limited to 'erts/epmd') diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 65ff0cd6b2..9ba1069663 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); @@ -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"); diff --git a/erts/epmd/src/epmd_cli.c b/erts/epmd/src/epmd_cli.c index 7c60ba0420..ac55ba6bb6 100644 --- a/erts/epmd/src/epmd_cli.c +++ b/erts/epmd/src/epmd_cli.c @@ -137,7 +137,7 @@ static int conn_to_epmd(EpmdVars *g) { /* store port number in unsigned short */ unsigned short sport = g->port; - SET_ADDR_LOOPBACK(address, FAMILY, sport); + SET_ADDR(address, EPMD_ADDR_LOOPBACK, sport); } if (connect(connect_sock, (struct sockaddr*)&address, sizeof address) < 0) diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h index c2558d52a1..2a0de4df9c 100644 --- a/erts/epmd/src/epmd_int.h +++ b/erts/epmd/src/epmd_int.h @@ -168,42 +168,40 @@ #if defined(HAVE_IN6) && defined(AF_INET6) && defined(EPMD6) #define EPMD_SOCKADDR_IN sockaddr_in6 -#define FAMILY AF_INET6 - -#define SET_ADDR_LOOPBACK(addr, af, port) do { \ - memset((char*)&(addr), 0, sizeof(addr)); \ - (addr).sin6_family = (af); \ - (addr).sin6_flowinfo = 0; \ - (addr).sin6_addr = in6addr_loopback; \ - (addr).sin6_port = htons(port); \ +#define EPMD_IN_ADDR in6_addr +#define EPMD_S_ADDR s6_addr +#define EPMD_ADDR_LOOPBACK in6addr_loopback.s6_addr +#define EPMD_ADDR_ANY in6addr_any.s6_addr +#define FAMILY AF_INET6 + +#define SET_ADDR(dst, addr, port) do { \ + memset((char*)&(dst), 0, sizeof(dst)); \ + memcpy((char*)&(dst).sin6_addr.s6_addr, (char*)&(addr), 16); \ + (dst).sin6_family = AF_INET6; \ + (dst).sin6_flowinfo = 0; \ + (dst).sin6_port = htons(port); \ } while(0) -#define SET_ADDR_ANY(addr, af, port) do { \ - memset((char*)&(addr), 0, sizeof(addr)); \ - (addr).sin6_family = (af); \ - (addr).sin6_flowinfo = 0; \ - (addr).sin6_addr = in6addr_any; \ - (addr).sin6_port = htons(port); \ - } while(0) +#define IS_ADDR_LOOPBACK(addr) \ + (memcmp((addr).s6_addr, in6addr_loopback.s6_addr, 16) == 0) #else /* Not IP v6 */ #define EPMD_SOCKADDR_IN sockaddr_in -#define FAMILY AF_INET - -#define SET_ADDR_LOOPBACK(addr, af, port) do { \ - memset((char*)&(addr), 0, sizeof(addr)); \ - (addr).sin_family = (af); \ - (addr).sin_addr.s_addr = htonl(INADDR_LOOPBACK); \ - (addr).sin_port = htons(port); \ +#define EPMD_IN_ADDR in_addr +#define EPMD_S_ADDR s_addr +#define EPMD_ADDR_LOOPBACK htonl(INADDR_LOOPBACK) +#define EPMD_ADDR_ANY htonl(INADDR_ANY) +#define FAMILY AF_INET + +#define SET_ADDR(dst, addr, port) do { \ + memset((char*)&(dst), 0, sizeof(dst)); \ + (dst).sin_family = AF_INET; \ + (dst).sin_addr.s_addr = (addr); \ + (dst).sin_port = htons(port); \ } while(0) -#define SET_ADDR_ANY(addr, af, port) do { \ - memset((char*)&(addr), 0, sizeof(addr)); \ - (addr).sin_family = (af); \ - (addr).sin_addr.s_addr = htonl(INADDR_ANY); \ - (addr).sin_port = htons(port); \ - } while(0) +#define IS_ADDR_LOOPBACK(addr) ((addr).s_addr == htonl(INADDR_LOOPBACK)) #endif /* Not IP v6 */ @@ -231,6 +229,8 @@ /* Maximum length of a node name == atom name */ #define MAXSYMLEN 255 +#define MAX_LISTEN_SOCKETS 16 + #define INBUF_SIZE 1024 #define OUTBUF_SIZE 1024 @@ -299,7 +299,8 @@ typedef struct { Connection *conn; Nodes nodes; fd_set orig_read_mask; - int listenfd; + int listenfd[MAX_LISTEN_SOCKETS]; + char *addresses; char **argv; } EpmdVars; diff --git a/erts/epmd/src/epmd_srv.c b/erts/epmd/src/epmd_srv.c index ef471a473a..73b09e7299 100644 --- a/erts/epmd/src/epmd_srv.c +++ b/erts/epmd/src/epmd_srv.c @@ -24,6 +24,10 @@ #include "epmd.h" /* Renamed from 'epmd_r4.h' */ #include "epmd_int.h" +#ifndef INADDR_NONE +# define INADDR_NONE 0xffffffff +#endif + /* * * This server is a local name server for Erlang nodes. Erlang nodes can @@ -79,90 +83,154 @@ static void print_names(EpmdVars*); void run(EpmdVars *g) { - int listensock; + struct EPMD_SOCKADDR_IN iserv_addr[MAX_LISTEN_SOCKETS]; + int listensock[MAX_LISTEN_SOCKETS]; + int num_sockets; int i; int opt; - struct EPMD_SOCKADDR_IN iserv_addr; + unsigned short sport = g->port; node_init(g); g->conn = conn_init(g); dbg_printf(g,2,"try to initiate listening port %d", g->port); - - if ((listensock = socket(FAMILY,SOCK_STREAM,0)) < 0) { - dbg_perror(g,"error opening stream socket"); - epmd_cleanup_exit(g,1); - } - g->listenfd = listensock; + + if (g->addresses != NULL) + { + char *tmp; + char *token; + int loopback_ok = 0; + + if ((tmp = (char *)malloc(strlen(g->addresses) + 1)) == NULL) + { + dbg_perror(g,"cannot allocate memory"); + epmd_cleanup_exit(g,1); + } + strcpy(tmp,g->addresses); + + for(token = strtok(tmp,", "), num_sockets = 0; + token != NULL; + token = strtok(NULL,", "), num_sockets++) + { + struct EPMD_IN_ADDR addr; +#ifdef HAVE_INET_PTON + int ret; + + if ((ret = inet_pton(FAMILY,token,&addr)) == -1) + { + dbg_perror(g,"cannot convert IP address to network format"); + epmd_cleanup_exit(g,1); + } + else if (ret == 0) +#elif !defined(EPMD6) + if ((addr.EPMD_S_ADDR = inet_addr(token)) == INADDR_NONE) +#endif + { + dbg_tty_printf(g,0,"cannot parse IP address \"%s\"",token); + epmd_cleanup_exit(g,1); + } + + if (IS_ADDR_LOOPBACK(addr)) + loopback_ok = 1; + + if (num_sockets - loopback_ok == MAX_LISTEN_SOCKETS - 1) + { + dbg_tty_printf(g,0,"cannot listen on more than %d IP addresses", + MAX_LISTEN_SOCKETS); + epmd_cleanup_exit(g,1); + } + + SET_ADDR(iserv_addr[num_sockets],addr.EPMD_S_ADDR,sport); + } + + free(tmp); + + if (!loopback_ok) + { + SET_ADDR(iserv_addr[num_sockets],EPMD_ADDR_LOOPBACK,sport); + num_sockets++; + } + } + else + { + SET_ADDR(iserv_addr[0],EPMD_ADDR_ANY,sport); + num_sockets = 1; + } + +#if !defined(__WIN32__) + /* We ignore the SIGPIPE signal that is raised when we call write + twice on a socket closed by the other end. */ + signal(SIGPIPE, SIG_IGN); +#endif /* * Initialize number of active file descriptors. * Stdin, stdout, and stderr are still open. - * One for the listen socket. */ - g->active_conn = 3+1; + g->active_conn = 3 + num_sockets; + g->max_conn -= num_sockets; + + FD_ZERO(&g->orig_read_mask); + + for (i = 0; i < num_sockets; i++) + { + if ((listensock[i] = socket(FAMILY,SOCK_STREAM,0)) < 0) + { + dbg_perror(g,"error opening stream socket"); + epmd_cleanup_exit(g,1); + } + g->listenfd[i] = listensock[i]; - /* - * Note that we must not enable the SO_REUSEADDR on Windows, - * because addresses will be reused even if they are still in use. - */ + /* + * Note that we must not enable the SO_REUSEADDR on Windows, + * because addresses will be reused even if they are still in use. + */ #if !defined(__WIN32__) - /* We ignore the SIGPIPE signal that is raised when we call write - twice on a socket closed by the other end. */ - signal(SIGPIPE, SIG_IGN); - - opt = 1; /* Set this option */ - if (setsockopt(listensock,SOL_SOCKET,SO_REUSEADDR,(char* ) &opt, - sizeof(opt)) <0) { - dbg_perror(g,"can't set sockopt"); - epmd_cleanup_exit(g,1); - } + opt = 1; + if (setsockopt(listensock[i],SOL_SOCKET,SO_REUSEADDR,(char* ) &opt, + sizeof(opt)) <0) + { + dbg_perror(g,"can't set sockopt"); + epmd_cleanup_exit(g,1); + } #endif - /* In rare cases select returns because there is someone - to accept but the request is withdrawn before the - accept function is called. We set the listen socket - to be non blocking to prevent us from being hanging - in accept() waiting for the next request. */ + /* In rare cases select returns because there is someone + to accept but the request is withdrawn before the + accept function is called. We set the listen socket + to be non blocking to prevent us from being hanging + in accept() waiting for the next request. */ #if (defined(__WIN32__) || defined(NO_FCNTL)) - opt = 1; - if (ioctl(listensock, FIONBIO, &opt) != 0) /* Gives warning in VxWorks */ + opt = 1; + /* Gives warning in VxWorks */ + if (ioctl(listensock[i], FIONBIO, &opt) != 0) #else - opt = fcntl(listensock, F_GETFL, 0); - if (fcntl(listensock, F_SETFL, opt | O_NONBLOCK) == -1) + opt = fcntl(listensock[i], F_GETFL, 0); + if (fcntl(listensock[i], F_SETFL, opt | O_NONBLOCK) == -1) #endif /* __WIN32__ || VXWORKS */ - dbg_perror(g,"failed to set non-blocking mode of listening socket %d", - listensock); + dbg_perror(g,"failed to set non-blocking mode of listening socket %d", + listensock[i]); - { /* store port number in unsigned short */ - unsigned short sport = g->port; - SET_ADDR_ANY(iserv_addr, FAMILY, sport); - } - - if(bind(listensock,(struct sockaddr*) &iserv_addr, sizeof(iserv_addr)) < 0 ) - { - if (errno == EADDRINUSE) - { - dbg_tty_printf(g,1,"there is already a epmd running at port %d", - g->port); - epmd_cleanup_exit(g,0); - } - else + if (bind(listensock[i], (struct sockaddr*) &iserv_addr[i], + sizeof(iserv_addr[i])) < 0) { - dbg_perror(g,"failed to bind socket"); - epmd_cleanup_exit(g,1); + if (errno == EADDRINUSE) + { + dbg_tty_printf(g,1,"there is already a epmd running at port %d", + g->port); + epmd_cleanup_exit(g,0); + } + else + { + dbg_perror(g,"failed to bind socket"); + epmd_cleanup_exit(g,1); + } } + listen(listensock[i],SOMAXCONN); + FD_SET(listensock[i],&g->orig_read_mask); } - dbg_printf(g,2,"starting"); - - listen(listensock, SOMAXCONN); - - - FD_ZERO(&g->orig_read_mask); - FD_SET(listensock,&g->orig_read_mask); - dbg_tty_printf(g,2,"entering the main select() loop"); select_again: @@ -198,17 +266,18 @@ void run(EpmdVars *g) sleep(g->delay_accept); } - if (FD_ISSET(listensock,&read_mask)) { - if (do_accept(g, listensock) && g->active_conn < g->max_conn) { - /* - * The accept() succeeded, and we have at least one file - * descriptor still free, which means that another accept() - * could succeed. Go do do another select(), in case there - * are more incoming connections waiting to be accepted. - */ - goto select_again; + for (i = 0; i < num_sockets; i++) + if (FD_ISSET(listensock[i],&read_mask)) { + if (do_accept(g, listensock[i]) && g->active_conn < g->max_conn) { + /* + * The accept() succeeded, and we have at least one file + * descriptor still free, which means that another accept() + * could succeed. Go do do another select(), in case there + * are more incoming connections waiting to be accepted. + */ + goto select_again; + } } - } /* Check all open streams marked by select for data or a close. We also close all open sockets except ALIVE -- cgit v1.2.3 From 5b68030b9d57a839ad798415f30936660ca83904 Mon Sep 17 00:00:00 2001 From: Michael Santos Date: Wed, 24 Nov 2010 19:38:04 -0500 Subject: epmd: include host address in local access check In FreeBSD jails, the source and destination address of connections to localhost are changed to be the IP address of the jail. Consider connections from the host's IP address to itself (e.g., the source and destination address match) to be local for the access control checks. Reported-By: tom@diogunix.com --- erts/epmd/src/epmd_srv.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'erts/epmd') diff --git a/erts/epmd/src/epmd_srv.c b/erts/epmd/src/epmd_srv.c index ef471a473a..ace736b836 100644 --- a/erts/epmd/src/epmd_srv.c +++ b/erts/epmd/src/epmd_srv.c @@ -736,6 +736,7 @@ static int conn_open(EpmdVars *g,int fd) for (i = 0; i < g->max_conn; i++) { if (g->conn[i].open == EPMD_FALSE) { struct sockaddr_in si; + struct sockaddr_in di; #ifdef HAVE_SOCKLEN_T socklen_t st; #else @@ -756,12 +757,16 @@ static int conn_open(EpmdVars *g,int fd) /* Determine if connection is from localhost */ if (getpeername(s->fd,(struct sockaddr*) &si,&st) || st < sizeof(si)) { - /* Failure to get peername is regarder as non local host */ + /* Failure to get peername is regarded as non local host */ s->local_peer = EPMD_FALSE; } else { + /* Only 127.x.x.x and connections from the host's IP address + allowed, no false positives */ s->local_peer = - ((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) == - 0x7F000000U); /* Only 127.x.x.x allowed, no false positives */ + (((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) == + 0x7F000000U) || + (getsockname(s->fd,(struct sockaddr*) &di,&st) ? + EPMD_FALSE : si.sin_addr.s_addr == di.sin_addr.s_addr)); } dbg_tty_printf(g,2,(s->local_peer) ? "Local peer connected" : "Non-local peer connected"); -- cgit v1.2.3 From d53be747c945d5e86997e1944446795b271dacb4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Fri, 11 Mar 2011 17:34:22 +0100 Subject: Update copyright years --- erts/epmd/test/epmd_SUITE.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'erts/epmd') diff --git a/erts/epmd/test/epmd_SUITE.erl b/erts/epmd/test/epmd_SUITE.erl index ec566f817b..72c890503d 100644 --- a/erts/epmd/test/epmd_SUITE.erl +++ b/erts/epmd/test/epmd_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2010. All Rights Reserved. +%% Copyright Ericsson AB 1998-2011. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in -- cgit v1.2.3 From 0094f959b941f7f2cfc35cd6c75f07493d86cc0b Mon Sep 17 00:00:00 2001 From: Tuncer Ayaz Date: Sun, 9 Jan 2011 17:41:05 +0100 Subject: Fix typo in epmd help --- erts/epmd/src/epmd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'erts/epmd') diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 65ff0cd6b2..e94533f0ba 100644 --- a/erts/epmd/src/epmd.c +++ b/erts/epmd/src/epmd.c @@ -433,7 +433,7 @@ 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"); -- cgit v1.2.3