-/* Client process that communicates with GNU Emacs acting as server.
- Copyright (C) 1986, 1987, 1994 Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs 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; either version 2, or (at your option)
-any later version.
-
-GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-
-#define NO_SHORTNAMES
-#include <../src/config.h>
-#undef read
-#undef write
-#undef open
-#undef close
-#undef signal
-
-#include <stdio.h>
-#include <getopt.h>
-
-char *getenv (), *getwd ();
-char *getcwd ();
-int geteuid ();
-
-/* This is defined with -D from the compilation command,
- which extracts it from ../lisp/version.el. */
-
-#ifndef VERSION
-#define VERSION "unspecified"
-#endif
-\f
-/* Name used to invoke this program. */
-char *progname;
-
-/* Nonzero means don't wait for a response from Emacs. --nowait. */
-int nowait = 0;
-
-struct option longopts[] =
-{
- { "nowait", no_argument, NULL, 'n' },
- { "help", no_argument, NULL, 'H' },
- { "version", no_argument, NULL, 'V' },
- { 0 }
-};
-
-/* Decode the options from argv and argc.
- Return the number of remaining arguments. */
-
-int
-decode_options (argc, argv)
- int argc;
- char **argv;
-{
- while (1)
- {
- int opt = getopt_long (argc, argv,
- "VHn", longopts, 0);
-
- if (opt == EOF)
- break;
-
- switch (opt)
- {
- case 0:
- /* If getopt returns 0, then it has already processed a
- long-named option. We should do nothing. */
- break;
-
- case 'n':
- nowait = 1;
- break;
-
- case 'V':
- fprintf (stderr, "Version %s\n", VERSION);
- exit (1);
- break;
-
- case 'H':
- default:
- print_help_and_exit ();
- }
- }
-
- return argc;
-}
-
-print_help_and_exit ()
-{
- fprintf (stderr,
- "Usage: %s [-n] [--nowait] [+linenumber] filename\n",
- progname);
- fprintf (stderr,
- "Report bugs to bug-gnu-emacs@prep.ai.mit.edu.\n");
- exit (1);
-}
-\f
-#if !defined (HAVE_SOCKETS) && !defined (HAVE_SYSVIPC)
-
-main (argc, argv)
- int argc;
- char **argv;
-{
- fprintf (stderr, "%s: Sorry, the Emacs server is supported only\n",
- argv[0]);
- fprintf (stderr, "on systems with Berkeley sockets or System V IPC.\n");
- exit (1);
-}
-
-#else /* HAVE_SOCKETS or HAVE_SYSVIPC */
-
-#if defined (HAVE_SOCKETS) && ! defined (NO_SOCKETS_IN_FILE_SYSTEM)
-/* BSD code is very different from SYSV IPC code */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <sys/stat.h>
-#include <errno.h>
-
-extern char *strerror ();
-extern int errno;
-
-int
-main (argc, argv)
- int argc;
- char **argv;
-{
- char system_name[32];
- int s, i;
- FILE *out, *in;
- struct sockaddr_un server;
- char *homedir, *cwd, *str;
- char string[BUFSIZ];
- int args_left;
-
- progname = argv[0];
-
- /* Process options. */
- args_left = decode_options (argc, argv);
-
- /* Advance argv and decrement argc for the options that were skipped. */
- argv += argc - args_left;
- argc = args_left;
-
- if (argc < 2)
- print_help_and_exit ();
-
- /*
- * Open up an AF_UNIX socket in this person's home directory
- */
-
- if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
- {
- fprintf (stderr, "%s: ", argv[0]);
- perror ("socket");
- exit (1);
- }
- server.sun_family = AF_UNIX;
-#ifndef SERVER_HOME_DIR
- {
- struct stat statbfr;
-
- gethostname (system_name, sizeof (system_name));
- sprintf (server.sun_path, "/tmp/esrv%d-%s", geteuid (), system_name);
-
- if (stat (server.sun_path, &statbfr) == -1)
- {
- if (errno == ENOENT)
- fprintf (stderr,
- "%s: can't find socket; have you started the server?\n",
- argv[0]);
- else
- fprintf (stderr, "%s: can't stat %s: %s\n",
- argv[0], server.sun_path, strerror (errno));
- exit (1);
- }
- if (statbfr.st_uid != geteuid ())
- {
- fprintf (stderr, "%s: Invalid socket owner\n", argv[0]);
- exit (1);
- }
- }
-#else
- if ((homedir = getenv ("HOME")) == NULL)
- {
- fprintf (stderr, "%s: No home directory\n", argv[0]);
- exit (1);
- }
- strcpy (server.sun_path, homedir);
- strcat (server.sun_path, "/.emacs-server-");
- gethostname (system_name, sizeof (system_name));
- strcat (server.sun_path, system_name);
-#endif
-
- if (connect (s, (struct sockaddr *) &server, strlen (server.sun_path) + 2)
- < 0)
- {
- fprintf (stderr, "%s: ", argv[0]);
- perror ("connect");
- exit (1);
- }
-
- /* We use the stream OUT to send our command to the server. */
- if ((out = fdopen (s, "r+")) == NULL)
- {
- fprintf (stderr, "%s: ", argv[0]);
- perror ("fdopen");
- exit (1);
- }
-
- /* We use the stream IN to read the response.
- We used to use just one stream for both output and input
- on the socket, but reversing direction works nonportably:
- on some systems, the output appears as the first input;
- on other systems it does not. */
- if ((in = fdopen (s, "r+")) == NULL)
- {
- fprintf (stderr, "%s: ", argv[0]);
- perror ("fdopen");
- exit (1);
- }
-
-#ifdef BSD
- cwd = getwd (string);
-#else
- cwd = getcwd (string, sizeof string);
-#endif
- if (cwd == 0)
- {
- /* getwd puts message in STRING if it fails. */
- fprintf (stderr, "%s: %s (%s)\n", argv[0], string, strerror (errno));
- exit (1);
- }
-
- for (i = 1; i < argc; i++)
- {
- /* If -nowait or --nowait option is used,
- report it to the server. */
- if (!strcmp (argv[i], "-nowait")
- || (!strncmp (argv[i], "--nowait", strlen (argv[i]))
- && strlen (argv[i]) >= 3))
- {
- fprintf (out, "-nowait ");
- nowait = 1;
- continue;
- }
-
- if (*argv[i] == '+')
- {
- char *p = argv[i] + 1;
- while (*p >= '0' && *p <= '9') p++;
- if (*p != 0)
- fprintf (out, "%s/", cwd);
- }
- else if (*argv[i] != '/')
- fprintf (out, "%s/", cwd);
- fprintf (out, "%s ", argv[i]);
- }
- fprintf (out, "\n");
- fflush (out);
-
- /* Maybe wait for an answer. */
- if (nowait)
- return 0;
-
- printf ("Waiting for Emacs...");
- fflush (stdout);
-
- /* Now, wait for an answer and print any messages. On some systems,
- the first line we read will actually be the output we just sent.
- We can't predict whether that will happen, so if it does, we
- detect it by recognizing `Client: ' at the beginning. */
-
- while (str = fgets (string, BUFSIZ, in))
- printf ("%s", str);
-
- return 0;
-}
-
-#else /* This is the SYSV IPC section */
-
-#include <sys/types.h>
-#include <sys/ipc.h>
-#include <sys/msg.h>
-#include <sys/utsname.h>
-#include <stdio.h>
-
-char *getwd (), *getcwd (), *getenv ();
-struct utsname system_name;
-
-main (argc, argv)
- int argc;
- char **argv;
-{
- int s;
- key_t key;
- /* Size of text allocated in MSGP. */
- int size_allocated = BUFSIZ;
- /* Amount of text used in MSGP. */
- int used;
- struct msgbuf *msgp
- = (struct msgbuf *) malloc (sizeof (struct msgbuf) + size_allocated);
- struct msqid_ds * msg_st;
- char *homedir, buf[BUFSIZ];
- char gwdirb[BUFSIZ];
- char *cwd;
- char *temp;
-
- progname = argv[0];
-
- /* Process options. */
- args_left = decode_options (argc, argv);
-
- /* Advance argv and decrement argc for the options that were skipped. */
- argv += argc - args_left;
- argc = args_left;
-
- if (argc < 2)
- print_help_and_exit ();
-
- /*
- * Create a message queue using ~/.emacs-server as the path for ftok
- */
- if ((homedir = getenv ("HOME")) == NULL)
- {
- fprintf (stderr, "%s: No home directory\n", argv[0]);
- exit (1);
- }
- strcpy (buf, homedir);
-#ifndef HAVE_LONG_FILE_NAMES
- /* If file names are short, we can't fit the host name. */
- strcat (buf, "/.emacs-server");
-#else
- strcat (buf, "/.emacs-server-");
- uname (&system_name);
- strcat (buf, system_name.nodename);
-#endif
- creat (buf, 0600);
- key = ftok (buf, 1); /* unlikely to be anyone else using it */
- s = msgget (key, 0600 | IPC_CREAT);
- if (s == -1)
- {
- fprintf (stderr, "%s: ", argv[0]);
- perror ("msgget");
- exit (1);
- }
-
- /* Determine working dir, so we can prefix it to all the arguments. */
-#ifdef BSD
- temp = getwd (gwdirb);
-#else
- temp = getcwd (gwdirb, sizeof gwdirb);
-#endif
-
- cwd = gwdirb;
- if (temp != 0)
- {
- /* On some systems, cwd can look like `@machine/...';
- ignore everything before the first slash in such a case. */
- while (*cwd && *cwd != '/')
- cwd++;
- strcat (cwd, "/");
- }
- else
- {
- fprintf (stderr, "%s: %s\n", argv[0], cwd);
- exit (1);
- }
-
- msgp->mtext[0] = 0;
- used = 0;
- argc--; argv++;
- while (argc)
- {
- int need_cwd = 0;
- char *modified_arg = argv[0];
-
- /* If -nowait or --nowait option is used,
- report it to the server. */
- if (!strcmp (modified_arg, "-nowait")
- || (!strncmp (modified_arg, "--nowait", strlen (modified_arg))
- && strlen (modified_arg) >= 3))
- {
- modified_arg = "-nowait";
- nowait = 1;
- }
- else if (*modified_arg == '+')
- {
- char *p = modified_arg + 1;
- while (*p >= '0' && *p <= '9') p++;
- if (*p != 0)
- need_cwd = 1;
- }
- else if (*modified_arg != '/')
- need_cwd = 1;
-
- if (need_cwd)
- used += strlen (cwd);
- used += strlen (modified_arg) + 1;
- while (used + 2 > size_allocated)
- {
- size_allocated *= 2;
- msgp = (struct msgbuf *) realloc (msgp,
- (sizeof (struct msgbuf)
- + size_allocated));
- }
-
- if (need_cwd)
- strcat (msgp->mtext, cwd);
-
- strcat (msgp->mtext, modified_arg);
- strcat (msgp->mtext, " ");
- argv++; argc--;
- }
- strcat (msgp->mtext, "\n");
-#ifdef HPUX /* HPUX has a bug. */
- if (strlen (msgp->mtext) >= 512)
- {
- fprintf (stderr, "%s: args too long for msgsnd\n", progname);
- exit (1);
- }
-#endif
- msgp->mtype = 1;
- if (msgsnd (s, msgp, strlen (msgp->mtext)+1, 0) < 0)
- {
- fprintf (stderr, "%s: ", progname);
- perror ("msgsnd");
- exit (1);
- }
-
- /* Maybe wait for an answer. */
- if (nowait)
- return 0;
-
- printf ("Waiting for Emacs...");
- fflush (stdout);
-
- msgrcv (s, msgp, BUFSIZ, getpid (), 0); /* wait for anything back */
- strcpy (buf, msgp->mtext);
-
- printf ("\n");
- if (*buf)
- printf ("%s\n", buf);
- exit (0);
-}
-
-#endif /* HAVE_SYSVIPC */
-
-#endif /* HAVE_SOCKETS or HAVE_SYSVIPC */
-\f
-#ifndef HAVE_STRERROR
-char *
-strerror (errnum)
- int errnum;
-{
- extern char *sys_errlist[];
- extern int sys_nerr;
-
- if (errnum >= 0 && errnum < sys_nerr)
- return sys_errlist[errnum];
- return (char *) "Unknown error";
-}
-
-#endif /* ! HAVE_STRERROR */
+/* Client process that communicates with GNU Emacs acting as server.
+ Copyright (C) 1986, 1987, 1994, 1999, 2000, 2001, 2003
+ Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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; either version 2, or (at your option)
+any later version.
+
+GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+
+#define NO_SHORTNAMES
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#undef signal
+
+#include <ctype.h>
+#include <stdio.h>
+#include <getopt.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef VMS
+# include "vms-pwd.h"
+#else
+# include <pwd.h>
+#endif /* not VMS */
+
+char *getenv (), *getwd ();
+char *getcwd ();
+
+/* This is defined with -D from the compilation command,
+ which extracts it from ../lisp/version.el. */
+
+#ifndef VERSION
+#define VERSION "unspecified"
+#endif
+\f
+/* Name used to invoke this program. */
+char *progname;
+
+/* Nonzero means don't wait for a response from Emacs. --no-wait. */
+int nowait = 0;
+
+/* Nonzero means args are expressions to be evaluated. --eval. */
+int eval = 0;
+
+/* The display on which Emacs should work. --display. */
+char *display = NULL;
+
+/* If non-NULL, the name of an editor to fallback to if the server
+ is not running. --alternate-editor. */
+const char * alternate_editor = NULL;
+
+void print_help_and_exit ();
+
+struct option longopts[] =
+{
+ { "no-wait", no_argument, NULL, 'n' },
+ { "eval", no_argument, NULL, 'e' },
+ { "help", no_argument, NULL, 'H' },
+ { "version", no_argument, NULL, 'V' },
+ { "alternate-editor", required_argument, NULL, 'a' },
+ { "display", required_argument, NULL, 'd' },
+ { 0, 0, 0, 0 }
+};
+
+/* Decode the options from argv and argc.
+ The global variable `optind' will say how many arguments we used up. */
+
+void
+decode_options (argc, argv)
+ int argc;
+ char **argv;
+{
+ while (1)
+ {
+ int opt = getopt_long (argc, argv,
+ "VHnea:d:", longopts, 0);
+
+ if (opt == EOF)
+ break;
+
+ alternate_editor = getenv ("ALTERNATE_EDITOR");
+
+ switch (opt)
+ {
+ case 0:
+ /* If getopt returns 0, then it has already processed a
+ long-named option. We should do nothing. */
+ break;
+
+ case 'a':
+ alternate_editor = optarg;
+ break;
+
+ case 'd':
+ display = optarg;
+ break;
+
+ case 'n':
+ nowait = 1;
+ break;
+
+ case 'e':
+ eval = 1;
+ break;
+
+ case 'V':
+ printf ("emacsclient %s\n", VERSION);
+ exit (0);
+ break;
+
+ case 'H':
+ print_help_and_exit ();
+ break;
+
+ default:
+ fprintf (stderr, "Try `%s --help' for more information\n", progname);
+ exit (1);
+ break;
+ }
+ }
+}
+
+void
+print_help_and_exit ()
+{
+ printf (
+ "Usage: %s [OPTIONS] FILE...\n\
+Tell the Emacs server to visit the specified files.\n\
+Every FILE can be either just a FILENAME or [+LINE[:COLUMN]] FILENAME.\n\
+\n\
+The following OPTIONS are accepted:\n\
+-V, --version Just print a version info and return\n\
+-H, --help Print this usage information message\n\
+-n, --no-wait Don't wait for the server to return\n\
+-e, --eval Evaluate the FILE arguments as ELisp expressions\n\
+-d, --display=DISPLAY Visit the file in the given display\n\
+-a, --alternate-editor=EDITOR\n\
+ Editor to fallback to if the server is not running\n\
+\n\
+Report bugs to bug-gnu-emacs@gnu.org.\n", progname);
+ exit (0);
+}
+
+/* Return a copy of NAME, inserting a &
+ before each &, each space, each newline, and any initial -.
+ Change spaces to underscores, too, so that the
+ return value never contains a space. */
+
+char *
+quote_file_name (name)
+ char *name;
+{
+ char *copy = (char *) malloc (strlen (name) * 2 + 1);
+ char *p, *q;
+
+ p = name;
+ q = copy;
+ while (*p)
+ {
+ if (*p == ' ')
+ {
+ *q++ = '&';
+ *q++ = '_';
+ p++;
+ }
+ else if (*p == '\n')
+ {
+ *q++ = '&';
+ *q++ = 'n';
+ p++;
+ }
+ else
+ {
+ if (*p == '&' || (*p == '-' && p == name))
+ *q++ = '&';
+ *q++ = *p++;
+ }
+ }
+ *q++ = 0;
+
+ return copy;
+}
+
+/* Like malloc but get fatal error if memory is exhausted. */
+
+long *
+xmalloc (size)
+ unsigned int size;
+{
+ long *result = (long *) malloc (size);
+ if (result == NULL)
+ {
+ perror ("malloc");
+ exit (1);
+ }
+ return result;
+}
+\f
+/*
+ Try to run a different command, or --if no alternate editor is
+ defined-- exit with an errorcode.
+*/
+void
+fail (argc, argv)
+ int argc;
+ char **argv;
+{
+ if (alternate_editor)
+ {
+ int i = optind - 1;
+ execvp (alternate_editor, argv + i);
+ return;
+ }
+ else
+ {
+ exit (1);
+ }
+}
+
+
+\f
+#if !defined (HAVE_SOCKETS) || defined (NO_SOCKETS_IN_FILE_SYSTEM)
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ fprintf (stderr, "%s: Sorry, the Emacs server is supported only\n",
+ argv[0]);
+ fprintf (stderr, "on systems with Berkeley sockets.\n");
+
+ fail (argc, argv);
+}
+
+#else /* HAVE_SOCKETS */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+extern char *strerror ();
+extern int errno;
+
+/* Three possibilities:
+ 2 - can't be `stat'ed (sets errno)
+ 1 - isn't owned by us
+ 0 - success: none of the above */
+
+static int
+socket_status (socket_name)
+ char *socket_name;
+{
+ struct stat statbfr;
+
+ if (stat (socket_name, &statbfr) == -1)
+ return 2;
+
+ if (statbfr.st_uid != geteuid ())
+ return 1;
+
+ return 0;
+}
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char *system_name;
+ int system_name_length;
+ int s, i, needlf = 0;
+ FILE *out, *in;
+ struct sockaddr_un server;
+ char *cwd, *str;
+ char string[BUFSIZ];
+
+ progname = argv[0];
+
+ /* Process options. */
+ decode_options (argc, argv);
+
+ if (argc - optind < 1)
+ {
+ fprintf (stderr, "%s: file name or argument required\n", progname);
+ fprintf (stderr, "Try `%s --help' for more information\n", progname);
+ exit (1);
+ }
+
+ /*
+ * Open up an AF_UNIX socket in this person's home directory
+ */
+
+ if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
+ {
+ fprintf (stderr, "%s: ", argv[0]);
+ perror ("socket");
+ fail (argc, argv);
+ }
+
+ server.sun_family = AF_UNIX;
+
+ {
+ char *dot;
+ system_name_length = 32;
+
+ while (1)
+ {
+ system_name = (char *) xmalloc (system_name_length + 1);
+
+ /* system_name must be null-terminated string. */
+ system_name[system_name_length] = '\0';
+
+ if (gethostname (system_name, system_name_length) == 0)
+ break;
+
+ free (system_name);
+ system_name_length *= 2;
+ }
+
+ /* We always use the non-dotted host name, for simplicity. */
+ dot = index (system_name, '.');
+ if (dot)
+ *dot = '\0';
+ }
+
+ {
+ int sock_status = 0;
+
+ sprintf (server.sun_path, "/tmp/emacs%d-%s/server", (int) geteuid (), system_name);
+
+ /* See if the socket exists, and if it's owned by us. */
+ sock_status = socket_status (server.sun_path);
+ if (sock_status)
+ {
+ /* Failing that, see if LOGNAME or USER exist and differ from
+ our euid. If so, look for a socket based on the UID
+ associated with the name. This is reminiscent of the logic
+ that init_editfns uses to set the global Vuser_full_name. */
+
+ char *user_name = (char *) getenv ("LOGNAME");
+ if (!user_name)
+ user_name = (char *) getenv ("USER");
+
+ if (user_name)
+ {
+ struct passwd *pw = getpwnam (user_name);
+ if (pw && (pw->pw_uid != geteuid ()))
+ {
+ /* We're running under su, apparently. */
+ sprintf (server.sun_path, "/tmp/esrv%d-%s",
+ (int) pw->pw_uid, system_name);
+ sock_status = socket_status (server.sun_path);
+ }
+ }
+ }
+
+ switch (sock_status)
+ {
+ case 1:
+ /* There's a socket, but it isn't owned by us. This is OK if
+ we are root. */
+ if (0 != geteuid ())
+ {
+ fprintf (stderr, "%s: Invalid socket owner\n", argv[0]);
+ fail (argc, argv);
+ }
+ break;
+
+ case 2:
+ /* `stat' failed */
+ if (errno == ENOENT)
+ fprintf (stderr,
+ "%s: can't find socket; have you started the server?\n\
+To start the server in Emacs, type \"M-x server-start\".\n",
+ argv[0]);
+ else
+ fprintf (stderr, "%s: can't stat %s: %s\n",
+ argv[0], server.sun_path, strerror (errno));
+ fail (argc, argv);
+ break;
+ }
+ }
+
+ if (connect (s, (struct sockaddr *) &server, strlen (server.sun_path) + 2)
+ < 0)
+ {
+ fprintf (stderr, "%s: ", argv[0]);
+ perror ("connect");
+ fail (argc, argv);
+ }
+
+ /* We use the stream OUT to send our command to the server. */
+ if ((out = fdopen (s, "r+")) == NULL)
+ {
+ fprintf (stderr, "%s: ", argv[0]);
+ perror ("fdopen");
+ fail (argc, argv);
+ }
+
+ /* We use the stream IN to read the response.
+ We used to use just one stream for both output and input
+ on the socket, but reversing direction works nonportably:
+ on some systems, the output appears as the first input;
+ on other systems it does not. */
+ if ((in = fdopen (s, "r+")) == NULL)
+ {
+ fprintf (stderr, "%s: ", argv[0]);
+ perror ("fdopen");
+ fail (argc, argv);
+ }
+
+#ifdef HAVE_GETCWD
+ cwd = getcwd (string, sizeof string);
+#else
+ cwd = getwd (string);
+#endif
+ if (cwd == 0)
+ {
+ /* getwd puts message in STRING if it fails. */
+
+#ifdef HAVE_GETCWD
+ fprintf (stderr, "%s: %s (%s)\n", argv[0],
+ "Cannot get current working directory", strerror (errno));
+#else
+ fprintf (stderr, "%s: %s (%s)\n", argv[0], string, strerror (errno));
+#endif
+ fail (argc, argv);
+ }
+
+ if (nowait)
+ fprintf (out, "-nowait ");
+
+ if (eval)
+ fprintf (out, "-eval ");
+
+ if (display)
+ fprintf (out, "-display %s ", quote_file_name (display));
+
+ for (i = optind; i < argc; i++)
+ {
+ if (eval)
+ ; /* Don't prepend any cwd or anything like that. */
+ else if (*argv[i] == '+')
+ {
+ char *p = argv[i] + 1;
+ while (isdigit ((unsigned char) *p) || *p == ':') p++;
+ if (*p != 0)
+ fprintf (out, "%s/", quote_file_name (cwd));
+ }
+ else if (*argv[i] != '/')
+ fprintf (out, "%s/", quote_file_name (cwd));
+
+ fprintf (out, "%s ", quote_file_name (argv[i]));
+ }
+ fprintf (out, "\n");
+ fflush (out);
+
+ /* Maybe wait for an answer. */
+ if (nowait)
+ return 0;
+
+ if (!eval)
+ {
+ printf ("Waiting for Emacs...");
+ needlf = 2;
+ }
+ fflush (stdout);
+
+ /* Now, wait for an answer and print any messages. */
+ while ((str = fgets (string, BUFSIZ, in)))
+ {
+ if (needlf == 2)
+ printf ("\n");
+ printf ("%s", str);
+ needlf = str[0] == '\0' ? needlf : str[strlen (str) - 1] != '\n';
+ }
+
+ if (needlf)
+ printf ("\n");
+ fflush (stdout);
+
+ return 0;
+}
+
+#endif /* HAVE_SOCKETS */
+\f
+#ifndef HAVE_STRERROR
+char *
+strerror (errnum)
+ int errnum;
+{
+ extern char *sys_errlist[];
+ extern int sys_nerr;
+
+ if (errnum >= 0 && errnum < sys_nerr)
+ return sys_errlist[errnum];
+ return (char *) "Unknown error";
+}
+
+#endif /* ! HAVE_STRERROR */