84d9c625bf
- Fix for possible unset uid/gid in toproto - Fix for default mtree style - Update libelf - Importing libexecinfo - Resynchronize GCC, mpc, gmp, mpfr - build.sh: Replace params with show-params. This has been done as the make target has been renamed in the same way, while a new target named params has been added. This new target generates a file containing all the parameters, instead of printing it on the console. - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org) get getservbyport() out of the inner loop Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
320 lines
6.7 KiB
C
320 lines
6.7 KiB
C
/* $NetBSD: ip_main.c,v 1.2 2013/11/22 15:52:05 christos Exp $ */
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/*-
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* Copyright (c) 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "Id: ip_main.c,v 8.24 2001/07/29 19:07:30 skimo Exp (Berkeley) Date: 2001/07/29 19:07:30 ";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <bitstring.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/uio.h>
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#include "../common/common.h"
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#include "../ipc/ip.h"
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GS *__global_list; /* GLOBAL: List of screens. */
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static void ip_func_std __P((WIN *));
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static IP_PRIVATE *ip_init __P((WIN *wp, int i_fd, int o_fd, int, int argc, char *argv[]));
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static void perr __P((char *, char *));
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static int get_fds __P((char *ip_arg, int *i_fd, int *o_fd));
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static int get_connection __P((WIN *wp, int main_ifd, int main_ofd,
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int *i_fd, int *o_fd, int *, int can_pass));
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static void *run_editor __P((void * vp));
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/*
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* ip_main --
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* This is the main loop for the vi-as-library editor.
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*/
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int
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main(int argc, char **argv)
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{
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IP_PRIVATE *ipp;
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char *ip_arg;
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char **p_av, **t_av;
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GS *gp;
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WIN *wp;
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int i_fd, o_fd, t_fd, main_ifd, main_ofd;
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/* Create and initialize the global structure. */
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__global_list = gp = gs_init(argv[0]);
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/*
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* Strip out any arguments that vi isn't going to understand. There's
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* no way to portably call getopt twice, so arguments parsed here must
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* be removed from the argument list.
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*/
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ip_arg = NULL;
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for (p_av = t_av = argv;;) {
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if (*t_av == NULL) {
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*p_av = NULL;
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break;
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}
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if (!strcmp(*t_av, "--")) {
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while ((*p_av++ = *t_av++) != NULL);
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break;
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}
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if (!memcmp(*t_av, "-I", sizeof("-I") - 1)) {
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if (t_av[0][2] != '\0') {
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ip_arg = t_av[0] + 2;
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++t_av;
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--argc;
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continue;
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}
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else if (t_av[1] != NULL) {
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ip_arg = t_av[1];
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t_av += 2;
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argc -= 2;
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continue;
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}
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}
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*p_av++ = *t_av++;
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}
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if (get_fds(ip_arg, &main_ifd, &main_ofd))
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return 1;
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wp = NULL;
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while (get_connection(wp, main_ifd, main_ofd, &i_fd, &o_fd, &t_fd, 1) == 0) {
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/* Create new window */
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wp = gs_new_win(gp);
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/* Create and partially initialize the IP structure. */
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if ((ipp = ip_init(wp, i_fd, o_fd, t_fd, argc, argv)) == NULL)
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return (1);
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gp->run(wp, run_editor, (void *)wp);
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}
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/* Clean out the global structure. */
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gs_end(gp);
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/* Free the global and IP private areas. */
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#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY)
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free(gp);
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#endif
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exit (0);
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}
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static void *
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run_editor(void * vp)
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{
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GS *gp;
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IP_PRIVATE *ipp;
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WIN *wp;
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EVENT ev;
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int rval;
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IP_BUF ipb;
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wp = (WIN *) vp;
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gp = wp->gp;
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ipp = wp->ip_private;
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/* Add the terminal type to the global structure. */
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if ((OG_D_STR(gp, GO_TERM) =
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OG_STR(gp, GO_TERM) = strdup("ip_curses")) == NULL)
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perr(gp->progname, NULL);
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/*
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* Figure out how big the screen is -- read events until we get
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* the rows and columns.
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*/
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for (;;) {
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if (ip_wevent(wp, NULL, &ev, 0, 0))
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return NULL;
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if (ev.e_event == E_WRESIZE)
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break;
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if (ev.e_event == E_EOF || ev.e_event == E_ERR ||
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ev.e_event == E_SIGHUP || ev.e_event == E_SIGTERM)
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return NULL;
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if (ev.e_event == E_IPCOMMAND && ev.e_ipcom == VI_QUIT)
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return NULL;
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}
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/* Run ex/vi. */
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rval = editor(wp, ipp->argc, ipp->argv);
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/* Clean up the screen. */
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(void)ip_quit(wp);
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/* Send the quit message. */
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ipb.code = SI_QUIT;
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(void)vi_send(ipp->o_fd, NULL, &ipb);
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/* Give the screen a couple of seconds to deal with it. */
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sleep(2);
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/* Remove window; correct place ? */
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win_end(wp);
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#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY)
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free(ipp);
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#endif
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return NULL;
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}
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/*
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* ip_init --
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* Create and partially initialize the GS structure.
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*/
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static IP_PRIVATE *
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ip_init(WIN *wp, int i_fd, int o_fd, int t_fd, int argc, char *argv[])
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{
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IP_PRIVATE *ipp;
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/* Allocate the IP private structure. */
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CALLOC_NOMSG(NULL, ipp, IP_PRIVATE *, 1, sizeof(IP_PRIVATE));
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if (ipp == NULL)
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perr(wp->gp->progname, NULL);
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wp->ip_private = ipp;
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ipp->i_fd = i_fd;
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ipp->o_fd = o_fd;
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ipp->t_fd = t_fd;
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ipp->argc = argc;
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ipp->argv = argv;
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/* Initialize the list of ip functions. */
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ip_func_std(wp);
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return (ipp);
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}
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static int
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get_fds(char *ip_arg, int *i_fd, int *o_fd)
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{
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char *ep;
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/*
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* Crack ip_arg -- it's of the form #.#, where the first number is the
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* file descriptor from the screen, the second is the file descriptor
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* to the screen.
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*/
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if (!ip_arg || !isdigit((unsigned char)ip_arg[0]))
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goto usage;
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*i_fd = strtol(ip_arg, &ep, 10);
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if (ep[0] != '.' || !isdigit((unsigned char)ep[1]))
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goto usage;
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*o_fd = strtol(++ep, &ep, 10);
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if (ep[0] != '\0') {
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usage: ip_usage();
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return 1;
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}
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return 0;
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}
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static int
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get_connection(WIN *wp, int main_ifd, int main_ofd,
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int *i_fd, int *o_fd, int *t_fd, int can_pass)
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{
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*t_fd = -1;
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if (!can_pass) {
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if (wp == NULL) { /* First call */
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*i_fd = main_ifd;
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*o_fd = main_ofd;
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} else {
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return 1;
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}
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} else {
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struct msghdr mh;
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IPCMSGHDR ch;
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char dummy;
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struct iovec iov;
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mh.msg_namelen = 0;
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mh.msg_iovlen = 1;
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mh.msg_iov = &iov;
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mh.msg_controllen = sizeof(ch);
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mh.msg_control = (void *)&ch;
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iov.iov_len = 1;
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iov.iov_base = &dummy;
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if (recvmsg(main_ifd, &mh, 0) != 1)
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return 1;
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*i_fd = *(int *)CMSG_DATA(&ch.header);
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if (recvmsg(*i_fd, &mh, 0) != 1)
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return 1;
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*o_fd = *(int *)CMSG_DATA(&ch.header);
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if (dummy == 'F') {
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if (recvmsg(*i_fd, &mh, 0) != 1)
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return 1;
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*t_fd = *(int *)CMSG_DATA(&ch.header);
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}
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}
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return 0;
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}
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/*
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* ip_func_std --
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* Initialize the standard ip functions.
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*/
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static void
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ip_func_std(WIN *wp)
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{
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GS *gp;
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gp = wp->gp;
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gp->scr_addstr = ip_addstr;
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gp->scr_waddstr = ip_waddstr;
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gp->scr_attr = ip_attr;
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gp->scr_baud = ip_baud;
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gp->scr_bell = ip_bell;
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gp->scr_busy = ip_busy;
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gp->scr_child = ip_child;
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gp->scr_clrtoeol = ip_clrtoeol;
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gp->scr_cursor = ip_cursor;
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gp->scr_deleteln = ip_deleteln;
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gp->scr_discard = ip_discard;
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gp->scr_event = ip_event;
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gp->scr_ex_adjust = ip_ex_adjust;
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gp->scr_fmap = ip_fmap;
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gp->scr_insertln = ip_insertln;
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gp->scr_keyval = ip_keyval;
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gp->scr_move = ip_move;
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wp->scr_msg = ip_msg;
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gp->scr_optchange = ip_optchange;
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gp->scr_refresh = ip_refresh;
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gp->scr_rename = ip_rename;
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gp->scr_reply = ip_reply;
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gp->scr_screen = ip_screen;
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gp->scr_split = ip_split;
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gp->scr_suspend = ip_suspend;
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gp->scr_usage = ip_usage;
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}
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/*
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* perr --
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* Print system error.
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*/
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static void
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perr(char *name, char *msg)
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{
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(void)fprintf(stderr, "%s:", name);
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if (msg != NULL)
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(void)fprintf(stderr, "%s:", msg);
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(void)fprintf(stderr, "%s\n", strerror(errno));
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exit(1);
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}
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