17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate
317c478bd9Sstevel@tonic-gate /*
327c478bd9Sstevel@tonic-gate * sdiff [-l] [-s] [-w #] [-o output] file1 file2
337c478bd9Sstevel@tonic-gate * does side by side diff listing
347c478bd9Sstevel@tonic-gate * -l leftside only for identical lines
357c478bd9Sstevel@tonic-gate * -s silent; only print differences
367c478bd9Sstevel@tonic-gate * -w # width of output
377c478bd9Sstevel@tonic-gate * -o output interactive creation of new output commands:
387c478bd9Sstevel@tonic-gate * s silent; do not print identical lines
397c478bd9Sstevel@tonic-gate * v turn off silent
407c478bd9Sstevel@tonic-gate * l copy left side to output
417c478bd9Sstevel@tonic-gate * r copy right side to output
427c478bd9Sstevel@tonic-gate * e l call ed with left side
437c478bd9Sstevel@tonic-gate * e r call ed with right side
447c478bd9Sstevel@tonic-gate * e b call ed with cat of left and right
457c478bd9Sstevel@tonic-gate * e call ed with empty file
467c478bd9Sstevel@tonic-gate * q exit from program
477c478bd9Sstevel@tonic-gate *
487c478bd9Sstevel@tonic-gate * functions:
497c478bd9Sstevel@tonic-gate * cmd decode diff commands
507c478bd9Sstevel@tonic-gate * put1 output left side
517c478bd9Sstevel@tonic-gate * put2 output right side
527c478bd9Sstevel@tonic-gate * putmid output gutter
537c478bd9Sstevel@tonic-gate * putline output n chars to indicated file
547c478bd9Sstevel@tonic-gate * getlen calculate length of strings with tabs
557c478bd9Sstevel@tonic-gate * cmdin read and process interactive cmds
567c478bd9Sstevel@tonic-gate * cpp copy from file to file
577c478bd9Sstevel@tonic-gate * edit call ed with file
587c478bd9Sstevel@tonic-gate */
597c478bd9Sstevel@tonic-gate
607c478bd9Sstevel@tonic-gate #include <stdio.h>
617c478bd9Sstevel@tonic-gate #include <ctype.h>
627c478bd9Sstevel@tonic-gate #include <signal.h>
637c478bd9Sstevel@tonic-gate #include <sys/types.h>
647c478bd9Sstevel@tonic-gate #include <sys/stat.h>
657c478bd9Sstevel@tonic-gate #include <sys/wait.h>
667c478bd9Sstevel@tonic-gate #include <unistd.h>
677c478bd9Sstevel@tonic-gate #include <stdlib.h>
687c478bd9Sstevel@tonic-gate #include <locale.h>
697c478bd9Sstevel@tonic-gate #include <limits.h>
707c478bd9Sstevel@tonic-gate #include <string.h>
717c478bd9Sstevel@tonic-gate #include <wchar.h>
727c478bd9Sstevel@tonic-gate
737c478bd9Sstevel@tonic-gate #define LMAX BUFSIZ
747c478bd9Sstevel@tonic-gate #define BMAX BUFSIZ
757c478bd9Sstevel@tonic-gate #define STDOUT 1
767c478bd9Sstevel@tonic-gate #define WGUTTER 6
777c478bd9Sstevel@tonic-gate #define WLEN (WGUTTER * 2 + WGUTTER + 2)
787c478bd9Sstevel@tonic-gate #define PROMPT '%'
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate static const char twoblanks[3] = " ";
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate static const char *DIFF = "diff -b ";
837c478bd9Sstevel@tonic-gate static char diffcmd[BMAX];
847c478bd9Sstevel@tonic-gate static char inbuf[10];
857c478bd9Sstevel@tonic-gate
867c478bd9Sstevel@tonic-gate static int llen = 130; /* Default maximum line length written out */
877c478bd9Sstevel@tonic-gate static int hlen; /* Half line length with space for gutter */
887c478bd9Sstevel@tonic-gate static int len1; /* Calculated length of left side */
897c478bd9Sstevel@tonic-gate static int nchars; /* Number of characters in left side - */
907c478bd9Sstevel@tonic-gate /* used for tab expansion */
917c478bd9Sstevel@tonic-gate static char change = ' ';
927c478bd9Sstevel@tonic-gate static int leftonly = 0; /* if set print left side only for */
937c478bd9Sstevel@tonic-gate /* identical lines */
947c478bd9Sstevel@tonic-gate static int silent = 0; /* if set do not print identical lines */
957c478bd9Sstevel@tonic-gate static int midflg = 0; /* set after middle was output */
967c478bd9Sstevel@tonic-gate static int rcode = 0; /* return code */
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate
997c478bd9Sstevel@tonic-gate static char *file1;
1007c478bd9Sstevel@tonic-gate static FILE *fdes1;
1017c478bd9Sstevel@tonic-gate
1027c478bd9Sstevel@tonic-gate static char *file2;
1037c478bd9Sstevel@tonic-gate static FILE *fdes2;
1047c478bd9Sstevel@tonic-gate
1057c478bd9Sstevel@tonic-gate static FILE *diffdes;
1067c478bd9Sstevel@tonic-gate
1077c478bd9Sstevel@tonic-gate static int oflag;
1087c478bd9Sstevel@tonic-gate static char *ofile;
1097c478bd9Sstevel@tonic-gate static FILE *odes;
1107c478bd9Sstevel@tonic-gate
1117c478bd9Sstevel@tonic-gate static char *ltemp;
1127c478bd9Sstevel@tonic-gate static FILE *left;
1137c478bd9Sstevel@tonic-gate
1147c478bd9Sstevel@tonic-gate static char *rtemp;
1157c478bd9Sstevel@tonic-gate static FILE *right;
1167c478bd9Sstevel@tonic-gate
1177c478bd9Sstevel@tonic-gate static FILE *tempdes;
1187c478bd9Sstevel@tonic-gate static char *temp;
1197c478bd9Sstevel@tonic-gate
1207c478bd9Sstevel@tonic-gate /* decoded diff cmd- left side from to; right side from, to */
1217c478bd9Sstevel@tonic-gate
1227c478bd9Sstevel@tonic-gate static int from1, to1, from2, to2;
1237c478bd9Sstevel@tonic-gate
1247c478bd9Sstevel@tonic-gate static int num1, num2; /* line count for left side file and right */
1257c478bd9Sstevel@tonic-gate static int tempfd = -1;
1267c478bd9Sstevel@tonic-gate
1277c478bd9Sstevel@tonic-gate static char *filename(char *, char *);
1287c478bd9Sstevel@tonic-gate static char *fgetline(FILE *);
1297c478bd9Sstevel@tonic-gate static int put1(void);
1307c478bd9Sstevel@tonic-gate static int put2(void);
1317c478bd9Sstevel@tonic-gate static void putline(FILE *, char *, int);
1327c478bd9Sstevel@tonic-gate static int cmd(char *);
1337c478bd9Sstevel@tonic-gate static int getlen(int, char *);
1347c478bd9Sstevel@tonic-gate static void putmid(int);
1357c478bd9Sstevel@tonic-gate static void error(char *, char *);
1367c478bd9Sstevel@tonic-gate static void onintr(void);
1377c478bd9Sstevel@tonic-gate static void sremove(void);
1387c478bd9Sstevel@tonic-gate static void cmdin(void);
1397c478bd9Sstevel@tonic-gate static void cpp(char *, FILE *, FILE *);
1407c478bd9Sstevel@tonic-gate static void edit(char *);
1417c478bd9Sstevel@tonic-gate
142*a85fbef1Sakaplan int
main(int argc,char ** argv)1437c478bd9Sstevel@tonic-gate main(int argc, char **argv)
1447c478bd9Sstevel@tonic-gate {
1457c478bd9Sstevel@tonic-gate int com;
1467c478bd9Sstevel@tonic-gate int n1, n2, n;
1477c478bd9Sstevel@tonic-gate char *bp;
1487c478bd9Sstevel@tonic-gate int lfd = -1;
1497c478bd9Sstevel@tonic-gate int rfd = -1;
1507c478bd9Sstevel@tonic-gate
1517c478bd9Sstevel@tonic-gate if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1527c478bd9Sstevel@tonic-gate (void) signal((int)SIGHUP, (void (*)(int))onintr);
1537c478bd9Sstevel@tonic-gate if (signal(SIGINT, SIG_IGN) != SIG_IGN)
1547c478bd9Sstevel@tonic-gate (void) signal((int)SIGINT, (void (*)(int))onintr);
1557c478bd9Sstevel@tonic-gate if (signal(SIGPIPE, SIG_IGN) != SIG_IGN)
1567c478bd9Sstevel@tonic-gate (void) signal((int)SIGPIPE, (void (*)(int))onintr);
1577c478bd9Sstevel@tonic-gate if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
1587c478bd9Sstevel@tonic-gate (void) signal((int)SIGTERM, (void (*)(int))onintr);
1597c478bd9Sstevel@tonic-gate
1607c478bd9Sstevel@tonic-gate (void) setlocale(LC_ALL, "");
1617c478bd9Sstevel@tonic-gate #if !defined(TEXT_DOMAIN)
1627c478bd9Sstevel@tonic-gate #define TEXT_DOMAIN "SYS_TEST"
1637c478bd9Sstevel@tonic-gate #endif
1647c478bd9Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN);
1657c478bd9Sstevel@tonic-gate
1667c478bd9Sstevel@tonic-gate while (--argc > 1 && **++argv == '-') {
1677c478bd9Sstevel@tonic-gate switch (*++*argv) {
1687c478bd9Sstevel@tonic-gate
1697c478bd9Sstevel@tonic-gate case 'w':
1707c478bd9Sstevel@tonic-gate /* -w# instead of -w # */
1717c478bd9Sstevel@tonic-gate if (*++*argv)
1727c478bd9Sstevel@tonic-gate llen = atoi(*argv);
1737c478bd9Sstevel@tonic-gate else {
1747c478bd9Sstevel@tonic-gate argc--;
1757c478bd9Sstevel@tonic-gate llen = atoi(*++argv);
1767c478bd9Sstevel@tonic-gate }
1777c478bd9Sstevel@tonic-gate if (llen < WLEN)
1787c478bd9Sstevel@tonic-gate error(gettext("Wrong line length %s"), *argv);
1797c478bd9Sstevel@tonic-gate if (llen > LMAX)
1807c478bd9Sstevel@tonic-gate llen = LMAX;
1817c478bd9Sstevel@tonic-gate break;
1827c478bd9Sstevel@tonic-gate
1837c478bd9Sstevel@tonic-gate case 'l':
1847c478bd9Sstevel@tonic-gate leftonly++;
1857c478bd9Sstevel@tonic-gate break;
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate case 's':
1887c478bd9Sstevel@tonic-gate silent++;
1897c478bd9Sstevel@tonic-gate break;
1907c478bd9Sstevel@tonic-gate case 'o':
1917c478bd9Sstevel@tonic-gate oflag++;
1927c478bd9Sstevel@tonic-gate argc--;
1937c478bd9Sstevel@tonic-gate ofile = *++argv;
1947c478bd9Sstevel@tonic-gate break;
1957c478bd9Sstevel@tonic-gate default:
1967c478bd9Sstevel@tonic-gate error(gettext("Illegal argument: %s"), *argv);
1977c478bd9Sstevel@tonic-gate }
1987c478bd9Sstevel@tonic-gate }
1997c478bd9Sstevel@tonic-gate if (argc != 2) {
2007c478bd9Sstevel@tonic-gate (void) fprintf(stderr, gettext(
2017c478bd9Sstevel@tonic-gate "Usage: sdiff [-l] [-s] [-o output] [-w #] file1 file2\n"));
202*a85fbef1Sakaplan return (2);
2037c478bd9Sstevel@tonic-gate }
2047c478bd9Sstevel@tonic-gate
2057c478bd9Sstevel@tonic-gate file1 = *argv++;
2067c478bd9Sstevel@tonic-gate file2 = *argv;
2077c478bd9Sstevel@tonic-gate file1 = filename(file1, file2);
2087c478bd9Sstevel@tonic-gate file2 = filename(file2, file1);
2097c478bd9Sstevel@tonic-gate hlen = (llen - WGUTTER +1)/2;
2107c478bd9Sstevel@tonic-gate
2117c478bd9Sstevel@tonic-gate if ((fdes1 = fopen(file1, "r")) == NULL)
2127c478bd9Sstevel@tonic-gate error(gettext("Cannot open: %s"), file1);
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate if ((fdes2 = fopen(file2, "r")) == NULL)
2157c478bd9Sstevel@tonic-gate error(gettext("Cannot open: %s"), file2);
2167c478bd9Sstevel@tonic-gate
2177c478bd9Sstevel@tonic-gate if (oflag) {
2187c478bd9Sstevel@tonic-gate if (tempfd == -1) {
2197c478bd9Sstevel@tonic-gate temp = strdup("/tmp/sdiffXXXXXX");
2207c478bd9Sstevel@tonic-gate tempfd = mkstemp(temp);
2217c478bd9Sstevel@tonic-gate if (tempfd == -1) {
2227c478bd9Sstevel@tonic-gate error(gettext(
2237c478bd9Sstevel@tonic-gate "Cannot open/create temp %s"), temp);
2247c478bd9Sstevel@tonic-gate free(temp);
2257c478bd9Sstevel@tonic-gate temp = 0;
2267c478bd9Sstevel@tonic-gate }
2277c478bd9Sstevel@tonic-gate }
2287c478bd9Sstevel@tonic-gate ltemp = strdup("/tmp/sdifflXXXXXX");
2297c478bd9Sstevel@tonic-gate if ((lfd = mkstemp(ltemp)) == -1 ||
2307c478bd9Sstevel@tonic-gate (left = fdopen(lfd, "w")) == NULL)
2317c478bd9Sstevel@tonic-gate error(gettext(
2327c478bd9Sstevel@tonic-gate "Cannot open/create temp %s"),
2337c478bd9Sstevel@tonic-gate ltemp);
2347c478bd9Sstevel@tonic-gate rtemp = strdup("/tmp/sdiffrXXXXXX");
2357c478bd9Sstevel@tonic-gate if ((rfd = mkstemp(rtemp)) == -1 ||
2367c478bd9Sstevel@tonic-gate (right = fdopen(rfd, "w")) == NULL)
2377c478bd9Sstevel@tonic-gate error(gettext(
2387c478bd9Sstevel@tonic-gate "Cannot open/create temp file %s"),
2397c478bd9Sstevel@tonic-gate rtemp);
2407c478bd9Sstevel@tonic-gate if ((odes = fopen(ofile, "w")) == NULL)
2417c478bd9Sstevel@tonic-gate error(gettext("Cannot open output %s"), ofile);
2427c478bd9Sstevel@tonic-gate }
2437c478bd9Sstevel@tonic-gate /* Call DIFF command */
2447c478bd9Sstevel@tonic-gate (void) strcpy(diffcmd, DIFF);
2457c478bd9Sstevel@tonic-gate (void) strcat(diffcmd, file1);
2467c478bd9Sstevel@tonic-gate (void) strcat(diffcmd, " ");
2477c478bd9Sstevel@tonic-gate (void) strcat(diffcmd, file2);
2487c478bd9Sstevel@tonic-gate diffdes = popen(diffcmd, "r");
2497c478bd9Sstevel@tonic-gate
2507c478bd9Sstevel@tonic-gate num1 = num2 = 0;
2517c478bd9Sstevel@tonic-gate
2527c478bd9Sstevel@tonic-gate /*
2537c478bd9Sstevel@tonic-gate * Read in diff output and decode commands
2547c478bd9Sstevel@tonic-gate * "change" is used to determine character to put in gutter
2557c478bd9Sstevel@tonic-gate * num1 and num2 counts the number of lines in file1 and 2
2567c478bd9Sstevel@tonic-gate */
2577c478bd9Sstevel@tonic-gate
2587c478bd9Sstevel@tonic-gate n = 0;
2597c478bd9Sstevel@tonic-gate while ((bp = fgetline(diffdes)) != NULL) {
2607c478bd9Sstevel@tonic-gate change = ' ';
2617c478bd9Sstevel@tonic-gate com = cmd(bp);
2627c478bd9Sstevel@tonic-gate
2637c478bd9Sstevel@tonic-gate /*
2647c478bd9Sstevel@tonic-gate * handles all diff output that is not cmd
2657c478bd9Sstevel@tonic-gate * lines starting with <, >, ., ---
2667c478bd9Sstevel@tonic-gate */
2677c478bd9Sstevel@tonic-gate if (com == 0)
2687c478bd9Sstevel@tonic-gate continue;
2697c478bd9Sstevel@tonic-gate
2707c478bd9Sstevel@tonic-gate /* Catch up to from1 and from2 */
2717c478bd9Sstevel@tonic-gate rcode = 1;
2727c478bd9Sstevel@tonic-gate n1 = from1 - num1;
2737c478bd9Sstevel@tonic-gate n2 = from2 - num2;
2747c478bd9Sstevel@tonic-gate n = n1 > n2 ? n2 : n1;
2757c478bd9Sstevel@tonic-gate if (com == 'c' && n > 0)
2767c478bd9Sstevel@tonic-gate n--;
2777c478bd9Sstevel@tonic-gate if (silent)
2787c478bd9Sstevel@tonic-gate (void) fputs(bp, stdout);
2797c478bd9Sstevel@tonic-gate while (n-- > 0) {
2807c478bd9Sstevel@tonic-gate (void) put1();
2817c478bd9Sstevel@tonic-gate (void) put2();
2827c478bd9Sstevel@tonic-gate if (!silent)
2837c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
2847c478bd9Sstevel@tonic-gate midflg = 0;
2857c478bd9Sstevel@tonic-gate }
2867c478bd9Sstevel@tonic-gate
2877c478bd9Sstevel@tonic-gate /* Process diff cmd */
2887c478bd9Sstevel@tonic-gate switch (com) {
2897c478bd9Sstevel@tonic-gate
2907c478bd9Sstevel@tonic-gate case 'a':
2917c478bd9Sstevel@tonic-gate change = '>';
2927c478bd9Sstevel@tonic-gate while (num2 < to2) {
2937c478bd9Sstevel@tonic-gate (void) put2();
2947c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
2957c478bd9Sstevel@tonic-gate midflg = 0;
2967c478bd9Sstevel@tonic-gate }
2977c478bd9Sstevel@tonic-gate break;
2987c478bd9Sstevel@tonic-gate
2997c478bd9Sstevel@tonic-gate case 'd':
3007c478bd9Sstevel@tonic-gate change = '<';
3017c478bd9Sstevel@tonic-gate while (num1 < to1) {
3027c478bd9Sstevel@tonic-gate (void) put1();
3037c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
3047c478bd9Sstevel@tonic-gate midflg = 0;
3057c478bd9Sstevel@tonic-gate }
3067c478bd9Sstevel@tonic-gate break;
3077c478bd9Sstevel@tonic-gate
3087c478bd9Sstevel@tonic-gate case 'c':
3097c478bd9Sstevel@tonic-gate n1 = to1 - from1;
3107c478bd9Sstevel@tonic-gate n2 = to2 - from2;
3117c478bd9Sstevel@tonic-gate n = n1 > n2 ? n2 : n1;
3127c478bd9Sstevel@tonic-gate change = '|';
3137c478bd9Sstevel@tonic-gate do {
3147c478bd9Sstevel@tonic-gate (void) put1();
3157c478bd9Sstevel@tonic-gate (void) put2();
3167c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
3177c478bd9Sstevel@tonic-gate midflg = 0;
3187c478bd9Sstevel@tonic-gate } while (n--);
3197c478bd9Sstevel@tonic-gate
3207c478bd9Sstevel@tonic-gate change = '<';
3217c478bd9Sstevel@tonic-gate while (num1 < to1) {
3227c478bd9Sstevel@tonic-gate (void) put1();
3237c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
3247c478bd9Sstevel@tonic-gate midflg = 0;
3257c478bd9Sstevel@tonic-gate }
3267c478bd9Sstevel@tonic-gate
3277c478bd9Sstevel@tonic-gate change = '>';
3287c478bd9Sstevel@tonic-gate while (num2 < to2) {
3297c478bd9Sstevel@tonic-gate (void) put2();
3307c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
3317c478bd9Sstevel@tonic-gate midflg = 0;
3327c478bd9Sstevel@tonic-gate }
3337c478bd9Sstevel@tonic-gate break;
3347c478bd9Sstevel@tonic-gate
3357c478bd9Sstevel@tonic-gate default:
3367c478bd9Sstevel@tonic-gate (void) fprintf(stderr, gettext(
3377c478bd9Sstevel@tonic-gate "%c: cmd not found\n"), cmd);
3387c478bd9Sstevel@tonic-gate break;
3397c478bd9Sstevel@tonic-gate }
3407c478bd9Sstevel@tonic-gate
3417c478bd9Sstevel@tonic-gate if (oflag == 1 && com != 0) {
3427c478bd9Sstevel@tonic-gate cmdin();
3437c478bd9Sstevel@tonic-gate if ((left = fopen(ltemp, "w")) == NULL)
3447c478bd9Sstevel@tonic-gate error(gettext(
3457c478bd9Sstevel@tonic-gate "main: Cannot open temp %s"), ltemp);
3467c478bd9Sstevel@tonic-gate if ((right = fopen(rtemp, "w")) == NULL)
3477c478bd9Sstevel@tonic-gate error(gettext(
3487c478bd9Sstevel@tonic-gate "main: Cannot open temp %s"), rtemp);
3497c478bd9Sstevel@tonic-gate }
3507c478bd9Sstevel@tonic-gate }
3517c478bd9Sstevel@tonic-gate /* put out remainder of input files */
3527c478bd9Sstevel@tonic-gate
3537c478bd9Sstevel@tonic-gate while (put1()) {
3547c478bd9Sstevel@tonic-gate (void) put2();
3557c478bd9Sstevel@tonic-gate if (!silent)
3567c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
3577c478bd9Sstevel@tonic-gate midflg = 0;
3587c478bd9Sstevel@tonic-gate }
3597c478bd9Sstevel@tonic-gate if (odes)
3607c478bd9Sstevel@tonic-gate (void) fclose(odes);
3617c478bd9Sstevel@tonic-gate sremove();
362*a85fbef1Sakaplan return (rcode);
3637c478bd9Sstevel@tonic-gate }
3647c478bd9Sstevel@tonic-gate
3657c478bd9Sstevel@tonic-gate static int
put1(void)3667c478bd9Sstevel@tonic-gate put1(void)
3677c478bd9Sstevel@tonic-gate {
3687c478bd9Sstevel@tonic-gate /* len1 = length of left side */
3697c478bd9Sstevel@tonic-gate /* nchars = num of chars including tabs */
3707c478bd9Sstevel@tonic-gate
3717c478bd9Sstevel@tonic-gate char *bp;
3727c478bd9Sstevel@tonic-gate
3737c478bd9Sstevel@tonic-gate
3747c478bd9Sstevel@tonic-gate if ((bp = fgetline(fdes1)) != NULL) {
3757c478bd9Sstevel@tonic-gate len1 = getlen(0, bp);
3767c478bd9Sstevel@tonic-gate if ((!silent || change != ' ') && len1 != 0)
3777c478bd9Sstevel@tonic-gate putline(stdout, bp, nchars);
3787c478bd9Sstevel@tonic-gate
3797c478bd9Sstevel@tonic-gate if (oflag) {
3807c478bd9Sstevel@tonic-gate /*
3817c478bd9Sstevel@tonic-gate * put left side either to output file
3827c478bd9Sstevel@tonic-gate * if identical to right
3837c478bd9Sstevel@tonic-gate * or left temp file if not
3847c478bd9Sstevel@tonic-gate */
3857c478bd9Sstevel@tonic-gate
3867c478bd9Sstevel@tonic-gate if (change == ' ')
3877c478bd9Sstevel@tonic-gate putline(odes, bp, strlen(bp));
3887c478bd9Sstevel@tonic-gate else
3897c478bd9Sstevel@tonic-gate putline(left, bp, strlen(bp));
3907c478bd9Sstevel@tonic-gate }
3917c478bd9Sstevel@tonic-gate if (change != ' ')
3927c478bd9Sstevel@tonic-gate putmid(1);
3937c478bd9Sstevel@tonic-gate num1++;
3947c478bd9Sstevel@tonic-gate return (1);
3957c478bd9Sstevel@tonic-gate } else
3967c478bd9Sstevel@tonic-gate return (0);
3977c478bd9Sstevel@tonic-gate }
3987c478bd9Sstevel@tonic-gate
3997c478bd9Sstevel@tonic-gate static int
put2(void)4007c478bd9Sstevel@tonic-gate put2(void)
4017c478bd9Sstevel@tonic-gate {
4027c478bd9Sstevel@tonic-gate char *bp;
4037c478bd9Sstevel@tonic-gate
4047c478bd9Sstevel@tonic-gate if ((bp = fgetline(fdes2)) != NULL) {
4057c478bd9Sstevel@tonic-gate (void) getlen((hlen + WGUTTER) % 8, bp);
4067c478bd9Sstevel@tonic-gate
4077c478bd9Sstevel@tonic-gate /*
4087c478bd9Sstevel@tonic-gate * if the left and right are different they are always
4097c478bd9Sstevel@tonic-gate * printed.
4107c478bd9Sstevel@tonic-gate * If the left and right are identical
4117c478bd9Sstevel@tonic-gate * right is only printed if leftonly is not specified
4127c478bd9Sstevel@tonic-gate * or silent mode is not specified
4137c478bd9Sstevel@tonic-gate * or the right contains other than white space (len1 !=0)
4147c478bd9Sstevel@tonic-gate */
4157c478bd9Sstevel@tonic-gate if (change != ' ') {
4167c478bd9Sstevel@tonic-gate
4177c478bd9Sstevel@tonic-gate /*
4187c478bd9Sstevel@tonic-gate * put right side to right temp file only
4197c478bd9Sstevel@tonic-gate * because left side was written to output for
4207c478bd9Sstevel@tonic-gate * identical lines
4217c478bd9Sstevel@tonic-gate */
4227c478bd9Sstevel@tonic-gate
4237c478bd9Sstevel@tonic-gate if (oflag)
4247c478bd9Sstevel@tonic-gate putline(right, bp, strlen(bp));
4257c478bd9Sstevel@tonic-gate
4267c478bd9Sstevel@tonic-gate if (midflg == 0)
4277c478bd9Sstevel@tonic-gate putmid(1);
4287c478bd9Sstevel@tonic-gate putline(stdout, bp, nchars);
4297c478bd9Sstevel@tonic-gate } else
4307c478bd9Sstevel@tonic-gate if (!silent && !leftonly && len1 != 0) {
4317c478bd9Sstevel@tonic-gate if (midflg == 0)
4327c478bd9Sstevel@tonic-gate putmid(1);
4337c478bd9Sstevel@tonic-gate putline(stdout, bp, nchars);
4347c478bd9Sstevel@tonic-gate }
4357c478bd9Sstevel@tonic-gate num2++;
4367c478bd9Sstevel@tonic-gate len1 = 0;
4377c478bd9Sstevel@tonic-gate return (1);
4387c478bd9Sstevel@tonic-gate } else {
4397c478bd9Sstevel@tonic-gate len1 = 0;
4407c478bd9Sstevel@tonic-gate return (0);
4417c478bd9Sstevel@tonic-gate }
4427c478bd9Sstevel@tonic-gate }
4437c478bd9Sstevel@tonic-gate
4447c478bd9Sstevel@tonic-gate static void
putline(FILE * file,char * start,int num)4457c478bd9Sstevel@tonic-gate putline(FILE *file, char *start, int num)
4467c478bd9Sstevel@tonic-gate {
4477c478bd9Sstevel@tonic-gate char *cp, *end;
4487c478bd9Sstevel@tonic-gate int i, len, d_col;
4497c478bd9Sstevel@tonic-gate wchar_t wc;
4507c478bd9Sstevel@tonic-gate
4517c478bd9Sstevel@tonic-gate cp = start;
4527c478bd9Sstevel@tonic-gate end = cp + num;
4537c478bd9Sstevel@tonic-gate while (cp < end) {
4547c478bd9Sstevel@tonic-gate if (isascii(*cp)) {
4557c478bd9Sstevel@tonic-gate (void) putc(*cp++, file);
4567c478bd9Sstevel@tonic-gate continue;
4577c478bd9Sstevel@tonic-gate }
4587c478bd9Sstevel@tonic-gate
4597c478bd9Sstevel@tonic-gate if ((len = end - cp) > MB_LEN_MAX)
4607c478bd9Sstevel@tonic-gate len = MB_LEN_MAX;
4617c478bd9Sstevel@tonic-gate
4627c478bd9Sstevel@tonic-gate if ((len = mbtowc(&wc, cp, len)) <= 0) {
4637c478bd9Sstevel@tonic-gate (void) putc(*cp++, file);
4647c478bd9Sstevel@tonic-gate continue;
4657c478bd9Sstevel@tonic-gate }
4667c478bd9Sstevel@tonic-gate
4677c478bd9Sstevel@tonic-gate if ((d_col = wcwidth(wc)) <= 0)
4687c478bd9Sstevel@tonic-gate d_col = len;
4697c478bd9Sstevel@tonic-gate
4707c478bd9Sstevel@tonic-gate if ((cp + d_col) > end)
4717c478bd9Sstevel@tonic-gate return;
4727c478bd9Sstevel@tonic-gate
4737c478bd9Sstevel@tonic-gate for (i = 0; i < len; i++)
4747c478bd9Sstevel@tonic-gate (void) putc(*cp++, file);
4757c478bd9Sstevel@tonic-gate }
4767c478bd9Sstevel@tonic-gate }
4777c478bd9Sstevel@tonic-gate
4787c478bd9Sstevel@tonic-gate static int
cmd(char * start)4797c478bd9Sstevel@tonic-gate cmd(char *start)
4807c478bd9Sstevel@tonic-gate {
4817c478bd9Sstevel@tonic-gate unsigned char *cp;
4827c478bd9Sstevel@tonic-gate char *cps;
4837c478bd9Sstevel@tonic-gate int com;
4847c478bd9Sstevel@tonic-gate
4857c478bd9Sstevel@tonic-gate if (*start == '>' || *start == '<' || *start == '-' || *start == '.')
4867c478bd9Sstevel@tonic-gate return (0);
4877c478bd9Sstevel@tonic-gate
4887c478bd9Sstevel@tonic-gate cp = (unsigned char *)start;
4897c478bd9Sstevel@tonic-gate cps = start;
4907c478bd9Sstevel@tonic-gate while (isdigit(*cp))
4917c478bd9Sstevel@tonic-gate cp++;
4927c478bd9Sstevel@tonic-gate from1 = atoi(cps);
4937c478bd9Sstevel@tonic-gate to1 = from1;
4947c478bd9Sstevel@tonic-gate if (*cp == ',') {
4957c478bd9Sstevel@tonic-gate cp++;
4967c478bd9Sstevel@tonic-gate cps = (char *)cp;
4977c478bd9Sstevel@tonic-gate while (isdigit(*cp))
4987c478bd9Sstevel@tonic-gate cp++;
4997c478bd9Sstevel@tonic-gate to1 = atoi(cps);
5007c478bd9Sstevel@tonic-gate }
5017c478bd9Sstevel@tonic-gate
5027c478bd9Sstevel@tonic-gate com = *cp++;
5037c478bd9Sstevel@tonic-gate cps = (char *)cp;
5047c478bd9Sstevel@tonic-gate
5057c478bd9Sstevel@tonic-gate while (isdigit(*cp))
5067c478bd9Sstevel@tonic-gate cp++;
5077c478bd9Sstevel@tonic-gate from2 = atoi(cps);
5087c478bd9Sstevel@tonic-gate to2 = from2;
5097c478bd9Sstevel@tonic-gate if (*cp == ',') {
5107c478bd9Sstevel@tonic-gate cp++;
5117c478bd9Sstevel@tonic-gate cps = (char *)cp;
5127c478bd9Sstevel@tonic-gate while (isdigit(*cp))
5137c478bd9Sstevel@tonic-gate cp++;
5147c478bd9Sstevel@tonic-gate to2 = atoi(cps);
5157c478bd9Sstevel@tonic-gate }
5167c478bd9Sstevel@tonic-gate return (com);
5177c478bd9Sstevel@tonic-gate }
5187c478bd9Sstevel@tonic-gate
5197c478bd9Sstevel@tonic-gate static int
getlen(int startpos,char * buffer)5207c478bd9Sstevel@tonic-gate getlen(int startpos, char *buffer)
5217c478bd9Sstevel@tonic-gate {
5227c478bd9Sstevel@tonic-gate /*
5237c478bd9Sstevel@tonic-gate * get the length of the string in buffer
5247c478bd9Sstevel@tonic-gate * expand tabs to next multiple of 8
5257c478bd9Sstevel@tonic-gate */
5267c478bd9Sstevel@tonic-gate unsigned char *cp;
5277c478bd9Sstevel@tonic-gate int slen, tlen, len, d_col;
5287c478bd9Sstevel@tonic-gate int notspace;
5297c478bd9Sstevel@tonic-gate wchar_t wc;
5307c478bd9Sstevel@tonic-gate
5317c478bd9Sstevel@tonic-gate nchars = 0;
5327c478bd9Sstevel@tonic-gate notspace = 0;
5337c478bd9Sstevel@tonic-gate tlen = startpos;
5347c478bd9Sstevel@tonic-gate for (cp = (unsigned char *)buffer; (*cp != '\n') && (*cp); cp++) {
5357c478bd9Sstevel@tonic-gate if (*cp == '\t') {
5367c478bd9Sstevel@tonic-gate slen = tlen;
5377c478bd9Sstevel@tonic-gate tlen += 8 - (tlen % 8);
5387c478bd9Sstevel@tonic-gate if (tlen >= hlen) {
5397c478bd9Sstevel@tonic-gate tlen = slen;
5407c478bd9Sstevel@tonic-gate break;
5417c478bd9Sstevel@tonic-gate }
5427c478bd9Sstevel@tonic-gate nchars++;
5437c478bd9Sstevel@tonic-gate continue;
5447c478bd9Sstevel@tonic-gate }
5457c478bd9Sstevel@tonic-gate
5467c478bd9Sstevel@tonic-gate if (isascii(*cp)) {
5477c478bd9Sstevel@tonic-gate slen = tlen;
5487c478bd9Sstevel@tonic-gate tlen++;
5497c478bd9Sstevel@tonic-gate if (tlen >= hlen) {
5507c478bd9Sstevel@tonic-gate tlen = slen;
5517c478bd9Sstevel@tonic-gate break;
5527c478bd9Sstevel@tonic-gate }
5537c478bd9Sstevel@tonic-gate if (!isspace(*cp))
5547c478bd9Sstevel@tonic-gate notspace = 1;
5557c478bd9Sstevel@tonic-gate nchars++;
5567c478bd9Sstevel@tonic-gate continue;
5577c478bd9Sstevel@tonic-gate }
5587c478bd9Sstevel@tonic-gate
5597c478bd9Sstevel@tonic-gate if ((len = mbtowc(&wc, (char *)cp, MB_LEN_MAX)) <= 0) {
5607c478bd9Sstevel@tonic-gate slen = tlen;
5617c478bd9Sstevel@tonic-gate tlen++;
5627c478bd9Sstevel@tonic-gate if (tlen >= hlen) {
5637c478bd9Sstevel@tonic-gate tlen = slen;
5647c478bd9Sstevel@tonic-gate break;
5657c478bd9Sstevel@tonic-gate }
5667c478bd9Sstevel@tonic-gate notspace = 1;
5677c478bd9Sstevel@tonic-gate nchars++;
5687c478bd9Sstevel@tonic-gate continue;
5697c478bd9Sstevel@tonic-gate }
5707c478bd9Sstevel@tonic-gate
5717c478bd9Sstevel@tonic-gate if ((d_col = wcwidth(wc)) <= 0)
5727c478bd9Sstevel@tonic-gate d_col = len;
5737c478bd9Sstevel@tonic-gate
5747c478bd9Sstevel@tonic-gate slen = tlen;
5757c478bd9Sstevel@tonic-gate tlen += d_col;
5767c478bd9Sstevel@tonic-gate if (tlen > hlen) {
5777c478bd9Sstevel@tonic-gate tlen = slen;
5787c478bd9Sstevel@tonic-gate break;
5797c478bd9Sstevel@tonic-gate }
5807c478bd9Sstevel@tonic-gate notspace = 1;
5817c478bd9Sstevel@tonic-gate cp += len - 1;
5827c478bd9Sstevel@tonic-gate nchars += len;
5837c478bd9Sstevel@tonic-gate }
5847c478bd9Sstevel@tonic-gate return (notspace ? tlen : 0);
5857c478bd9Sstevel@tonic-gate }
5867c478bd9Sstevel@tonic-gate
5877c478bd9Sstevel@tonic-gate static void
putmid(int bflag)5887c478bd9Sstevel@tonic-gate putmid(int bflag)
5897c478bd9Sstevel@tonic-gate {
5907c478bd9Sstevel@tonic-gate int i;
5917c478bd9Sstevel@tonic-gate
5927c478bd9Sstevel@tonic-gate /*
5937c478bd9Sstevel@tonic-gate * len1 set by getlen to the possibly truncated
5947c478bd9Sstevel@tonic-gate * length of left side
5957c478bd9Sstevel@tonic-gate * hlen is length of half line
5967c478bd9Sstevel@tonic-gate */
5977c478bd9Sstevel@tonic-gate
5987c478bd9Sstevel@tonic-gate midflg = 1;
5997c478bd9Sstevel@tonic-gate if (bflag) {
6007c478bd9Sstevel@tonic-gate for (i = 0; i < hlen - len1; i++)
6017c478bd9Sstevel@tonic-gate (void) putc(' ', stdout);
6027c478bd9Sstevel@tonic-gate }
6037c478bd9Sstevel@tonic-gate (void) fputs(twoblanks, stdout);
6047c478bd9Sstevel@tonic-gate (void) putc((int)change, stdout);
6057c478bd9Sstevel@tonic-gate (void) fputs(twoblanks, stdout);
6067c478bd9Sstevel@tonic-gate }
6077c478bd9Sstevel@tonic-gate
6087c478bd9Sstevel@tonic-gate static void
error(char * s1,char * s2)6097c478bd9Sstevel@tonic-gate error(char *s1, char *s2)
6107c478bd9Sstevel@tonic-gate {
6117c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "sdiff: ");
6127c478bd9Sstevel@tonic-gate (void) fprintf(stderr, s1, s2);
6137c478bd9Sstevel@tonic-gate (void) putc('\n', stderr);
6147c478bd9Sstevel@tonic-gate sremove();
6157c478bd9Sstevel@tonic-gate exit(2);
6167c478bd9Sstevel@tonic-gate }
6177c478bd9Sstevel@tonic-gate
6187c478bd9Sstevel@tonic-gate static void
onintr(void)6197c478bd9Sstevel@tonic-gate onintr(void)
6207c478bd9Sstevel@tonic-gate {
6217c478bd9Sstevel@tonic-gate sremove();
6227c478bd9Sstevel@tonic-gate exit(rcode);
6237c478bd9Sstevel@tonic-gate }
6247c478bd9Sstevel@tonic-gate
6257c478bd9Sstevel@tonic-gate static void
sremove(void)6267c478bd9Sstevel@tonic-gate sremove(void)
6277c478bd9Sstevel@tonic-gate {
6287c478bd9Sstevel@tonic-gate if (ltemp) {
6297c478bd9Sstevel@tonic-gate (void) unlink(ltemp);
6307c478bd9Sstevel@tonic-gate free(ltemp);
6317c478bd9Sstevel@tonic-gate }
6327c478bd9Sstevel@tonic-gate if (rtemp) {
6337c478bd9Sstevel@tonic-gate (void) unlink(rtemp);
6347c478bd9Sstevel@tonic-gate free(rtemp);
6357c478bd9Sstevel@tonic-gate }
6367c478bd9Sstevel@tonic-gate if (temp) {
6377c478bd9Sstevel@tonic-gate (void) unlink(temp);
6387c478bd9Sstevel@tonic-gate free(temp);
6397c478bd9Sstevel@tonic-gate }
6407c478bd9Sstevel@tonic-gate }
6417c478bd9Sstevel@tonic-gate
6427c478bd9Sstevel@tonic-gate static void
cmdin(void)6437c478bd9Sstevel@tonic-gate cmdin(void)
6447c478bd9Sstevel@tonic-gate {
6457c478bd9Sstevel@tonic-gate char *cp, *ename;
6467c478bd9Sstevel@tonic-gate int notacc;
6477c478bd9Sstevel@tonic-gate
6487c478bd9Sstevel@tonic-gate (void) fclose(left);
6497c478bd9Sstevel@tonic-gate (void) fclose(right);
6507c478bd9Sstevel@tonic-gate notacc = 1;
6517c478bd9Sstevel@tonic-gate while (notacc) {
6527c478bd9Sstevel@tonic-gate (void) putc(PROMPT, stdout);
6537c478bd9Sstevel@tonic-gate if ((cp = fgets(inbuf, 10, stdin)) == NULL) {
6547c478bd9Sstevel@tonic-gate (void) putc('\n', stdout);
6557c478bd9Sstevel@tonic-gate break;
6567c478bd9Sstevel@tonic-gate }
6577c478bd9Sstevel@tonic-gate switch (*cp) {
6587c478bd9Sstevel@tonic-gate
6597c478bd9Sstevel@tonic-gate case 's':
6607c478bd9Sstevel@tonic-gate silent = 1;
6617c478bd9Sstevel@tonic-gate break;
6627c478bd9Sstevel@tonic-gate
6637c478bd9Sstevel@tonic-gate case 'v':
6647c478bd9Sstevel@tonic-gate silent = 0;
6657c478bd9Sstevel@tonic-gate break;
6667c478bd9Sstevel@tonic-gate
6677c478bd9Sstevel@tonic-gate case 'q':
6687c478bd9Sstevel@tonic-gate sremove();
6697c478bd9Sstevel@tonic-gate exit(rcode);
6707c478bd9Sstevel@tonic-gate /* NOTREACHED */
6717c478bd9Sstevel@tonic-gate break;
6727c478bd9Sstevel@tonic-gate
6737c478bd9Sstevel@tonic-gate case 'l':
6747c478bd9Sstevel@tonic-gate cpp(ltemp, left, odes);
6757c478bd9Sstevel@tonic-gate notacc = 0;
6767c478bd9Sstevel@tonic-gate break;
6777c478bd9Sstevel@tonic-gate
6787c478bd9Sstevel@tonic-gate case 'r':
6797c478bd9Sstevel@tonic-gate cpp(rtemp, right, odes);
6807c478bd9Sstevel@tonic-gate notacc = 0;
6817c478bd9Sstevel@tonic-gate break;
6827c478bd9Sstevel@tonic-gate
6837c478bd9Sstevel@tonic-gate case 'e':
6847c478bd9Sstevel@tonic-gate while (*++cp == ' ')
6857c478bd9Sstevel@tonic-gate ;
6867c478bd9Sstevel@tonic-gate switch (*cp) {
6877c478bd9Sstevel@tonic-gate case 'l':
6887c478bd9Sstevel@tonic-gate case '<':
6897c478bd9Sstevel@tonic-gate notacc = 0;
6907c478bd9Sstevel@tonic-gate ename = ltemp;
6917c478bd9Sstevel@tonic-gate edit(ename);
6927c478bd9Sstevel@tonic-gate break;
6937c478bd9Sstevel@tonic-gate
6947c478bd9Sstevel@tonic-gate case 'r':
6957c478bd9Sstevel@tonic-gate case '>':
6967c478bd9Sstevel@tonic-gate notacc = 0;
6977c478bd9Sstevel@tonic-gate ename = rtemp;
6987c478bd9Sstevel@tonic-gate edit(ename);
6997c478bd9Sstevel@tonic-gate break;
7007c478bd9Sstevel@tonic-gate
7017c478bd9Sstevel@tonic-gate case 'b':
7027c478bd9Sstevel@tonic-gate case '|':
7037c478bd9Sstevel@tonic-gate if ((tempdes = fopen(temp, "w")) == NULL)
7047c478bd9Sstevel@tonic-gate error(gettext(
7057c478bd9Sstevel@tonic-gate "Cannot open temp file %s"),
7067c478bd9Sstevel@tonic-gate temp);
7077c478bd9Sstevel@tonic-gate cpp(ltemp, left, tempdes);
7087c478bd9Sstevel@tonic-gate cpp(rtemp, right, tempdes);
7097c478bd9Sstevel@tonic-gate (void) fclose(tempdes);
7107c478bd9Sstevel@tonic-gate notacc = 0;
7117c478bd9Sstevel@tonic-gate ename = temp;
7127c478bd9Sstevel@tonic-gate edit(ename);
7137c478bd9Sstevel@tonic-gate break;
7147c478bd9Sstevel@tonic-gate
7157c478bd9Sstevel@tonic-gate case '\n':
7167c478bd9Sstevel@tonic-gate if ((tempdes = fopen(temp, "w")) == NULL)
7177c478bd9Sstevel@tonic-gate error(gettext(
7187c478bd9Sstevel@tonic-gate "Cannot open temp file %s"),
7197c478bd9Sstevel@tonic-gate temp);
7207c478bd9Sstevel@tonic-gate (void) fclose(tempdes);
7217c478bd9Sstevel@tonic-gate notacc = 0;
7227c478bd9Sstevel@tonic-gate ename = temp;
7237c478bd9Sstevel@tonic-gate edit(ename);
7247c478bd9Sstevel@tonic-gate break;
7257c478bd9Sstevel@tonic-gate default:
7267c478bd9Sstevel@tonic-gate (void) fprintf(stderr, gettext(
7277c478bd9Sstevel@tonic-gate "Illegal command %s reenter\n"),
7287c478bd9Sstevel@tonic-gate cp);
7297c478bd9Sstevel@tonic-gate break;
7307c478bd9Sstevel@tonic-gate }
7317c478bd9Sstevel@tonic-gate if (notacc == 0)
7327c478bd9Sstevel@tonic-gate cpp(ename, tempdes, odes);
7337c478bd9Sstevel@tonic-gate break;
7347c478bd9Sstevel@tonic-gate
7357c478bd9Sstevel@tonic-gate default:
7367c478bd9Sstevel@tonic-gate (void) fprintf(stderr, gettext(
7377c478bd9Sstevel@tonic-gate "Illegal command reenter\n"));
7387c478bd9Sstevel@tonic-gate break;
7397c478bd9Sstevel@tonic-gate }
7407c478bd9Sstevel@tonic-gate }
7417c478bd9Sstevel@tonic-gate }
7427c478bd9Sstevel@tonic-gate
7437c478bd9Sstevel@tonic-gate static void
cpp(char * from,FILE * fromdes,FILE * todes)7447c478bd9Sstevel@tonic-gate cpp(char *from, FILE *fromdes, FILE *todes)
7457c478bd9Sstevel@tonic-gate {
7467c478bd9Sstevel@tonic-gate char tempbuf[BMAX + 1];
7477c478bd9Sstevel@tonic-gate
7487c478bd9Sstevel@tonic-gate if ((fromdes = fopen(from, "r")) == NULL)
7497c478bd9Sstevel@tonic-gate error(gettext(
7507c478bd9Sstevel@tonic-gate "cpp: Cannot open %s"), from);
7517c478bd9Sstevel@tonic-gate while ((fgets(tempbuf, BMAX, fromdes) != NULL))
7527c478bd9Sstevel@tonic-gate (void) fputs(tempbuf, todes);
7537c478bd9Sstevel@tonic-gate (void) fclose(fromdes);
7547c478bd9Sstevel@tonic-gate }
7557c478bd9Sstevel@tonic-gate
7567c478bd9Sstevel@tonic-gate static void
edit(char * file)7577c478bd9Sstevel@tonic-gate edit(char *file)
7587c478bd9Sstevel@tonic-gate {
7597c478bd9Sstevel@tonic-gate int i;
7607c478bd9Sstevel@tonic-gate pid_t pid;
7617c478bd9Sstevel@tonic-gate void (*oldintr)(int);
7627c478bd9Sstevel@tonic-gate
7637c478bd9Sstevel@tonic-gate switch (pid = fork()) {
7647c478bd9Sstevel@tonic-gate case (pid_t)-1:
7657c478bd9Sstevel@tonic-gate error(gettext("Cannot fork"), NULL);
7667c478bd9Sstevel@tonic-gate /* NOTREACHED */
7677c478bd9Sstevel@tonic-gate break;
7687c478bd9Sstevel@tonic-gate case (pid_t)0:
7697c478bd9Sstevel@tonic-gate (void) execl("/usr/bin/ed", "ed", file, NULL);
7707c478bd9Sstevel@tonic-gate }
7717c478bd9Sstevel@tonic-gate
7727c478bd9Sstevel@tonic-gate oldintr = signal(SIGINT, SIG_IGN); /* ignore interrupts in ed */
7737c478bd9Sstevel@tonic-gate while (pid != wait(&i))
7747c478bd9Sstevel@tonic-gate ;
7757c478bd9Sstevel@tonic-gate /* restore previous interrupt proc */
7767c478bd9Sstevel@tonic-gate (void) signal(SIGINT, oldintr);
7777c478bd9Sstevel@tonic-gate }
7787c478bd9Sstevel@tonic-gate
7797c478bd9Sstevel@tonic-gate static char *
filename(char * pa1,char * pa2)7807c478bd9Sstevel@tonic-gate filename(char *pa1, char *pa2)
7817c478bd9Sstevel@tonic-gate {
7827c478bd9Sstevel@tonic-gate int c;
7837c478bd9Sstevel@tonic-gate char *a1, *b1, *a2;
7847c478bd9Sstevel@tonic-gate struct stat stbuf;
7857c478bd9Sstevel@tonic-gate a1 = pa1;
7867c478bd9Sstevel@tonic-gate a2 = pa2;
7877c478bd9Sstevel@tonic-gate if (stat(a1, &stbuf) != -1 && ((stbuf.st_mode&S_IFMT) == S_IFDIR)) {
7887c478bd9Sstevel@tonic-gate b1 = pa1 = (char *)malloc(strlen(a1) + strlen(a2) + 2);
7897c478bd9Sstevel@tonic-gate while (*b1++ = *a1++);
7907c478bd9Sstevel@tonic-gate b1[-1] = '/';
7917c478bd9Sstevel@tonic-gate a1 = b1;
7927c478bd9Sstevel@tonic-gate while (*a1++ = *a2++)
7937c478bd9Sstevel@tonic-gate if (*a2 && *a2 != '/' && a2[-1] == '/')
7947c478bd9Sstevel@tonic-gate a1 = b1;
7957c478bd9Sstevel@tonic-gate } else if (a1[0] == '-' && a1[1] == 0 && temp == 0) {
7967c478bd9Sstevel@tonic-gate if (fstat(fileno(stdin), &stbuf) == -1)
7977c478bd9Sstevel@tonic-gate error(gettext("Cannot process stdin"), NULL);
7987c478bd9Sstevel@tonic-gate pa1 = temp = strdup("/tmp/sdiffXXXXXX");
7997c478bd9Sstevel@tonic-gate if ((tempfd = mkstemp(temp)) == -1 ||
8007c478bd9Sstevel@tonic-gate (tempdes = fdopen(tempfd, "w")) == NULL)
8017c478bd9Sstevel@tonic-gate error(gettext("Cannot open/create temp %s"),
8027c478bd9Sstevel@tonic-gate temp);
8037c478bd9Sstevel@tonic-gate while ((c = getc(stdin)) != EOF)
8047c478bd9Sstevel@tonic-gate (void) putc(c, tempdes);
8057c478bd9Sstevel@tonic-gate (void) fclose(tempdes);
8067c478bd9Sstevel@tonic-gate }
8077c478bd9Sstevel@tonic-gate return (pa1);
8087c478bd9Sstevel@tonic-gate }
8097c478bd9Sstevel@tonic-gate
8107c478bd9Sstevel@tonic-gate /*
8117c478bd9Sstevel@tonic-gate * like fgets, but reads upto and including a newline,
8127c478bd9Sstevel@tonic-gate * the data is stored in a reusable dynamic buffer that grows to fit
8137c478bd9Sstevel@tonic-gate * the largest line in the file, the buffer is NULL terminated
8147c478bd9Sstevel@tonic-gate * returns a pointer to the dynamic buffer.
8157c478bd9Sstevel@tonic-gate */
8167c478bd9Sstevel@tonic-gate static char *
fgetline(FILE * fp)8177c478bd9Sstevel@tonic-gate fgetline(FILE *fp)
8187c478bd9Sstevel@tonic-gate {
8197c478bd9Sstevel@tonic-gate static char *bp = NULL;
8207c478bd9Sstevel@tonic-gate static int blen = 0;
8217c478bd9Sstevel@tonic-gate int sl;
8227c478bd9Sstevel@tonic-gate
8237c478bd9Sstevel@tonic-gate if (bp == NULL) {
8247c478bd9Sstevel@tonic-gate /* allocate it for the first time */
8257c478bd9Sstevel@tonic-gate bp = (char *)malloc(BUFSIZ);
8267c478bd9Sstevel@tonic-gate if (bp == NULL)
8277c478bd9Sstevel@tonic-gate error(gettext("fgetline: malloc failed"), NULL);
8287c478bd9Sstevel@tonic-gate blen = BUFSIZ;
8297c478bd9Sstevel@tonic-gate }
8307c478bd9Sstevel@tonic-gate
8317c478bd9Sstevel@tonic-gate /* check for error or nothing read */
8327c478bd9Sstevel@tonic-gate if (fgets(bp, blen, fp) == NULL)
8337c478bd9Sstevel@tonic-gate return (NULL);
8347c478bd9Sstevel@tonic-gate
8357c478bd9Sstevel@tonic-gate if (feof(fp))
8367c478bd9Sstevel@tonic-gate return (bp);
8377c478bd9Sstevel@tonic-gate
8387c478bd9Sstevel@tonic-gate while ((sl = strlen(bp)) == blen-1 && *(bp+blen-2) != '\n') {
8397c478bd9Sstevel@tonic-gate /* still more data, grow the buffer */
8407c478bd9Sstevel@tonic-gate blen *= 2;
8417c478bd9Sstevel@tonic-gate bp = (char *)realloc(bp, blen);
8427c478bd9Sstevel@tonic-gate if (bp == NULL)
8437c478bd9Sstevel@tonic-gate error(gettext("fgetline: realloc failed"), NULL);
8447c478bd9Sstevel@tonic-gate /* continue reading and add to end of buffer */
8457c478bd9Sstevel@tonic-gate (void) fgets(bp+sl, blen-sl, fp);
8467c478bd9Sstevel@tonic-gate }
8477c478bd9Sstevel@tonic-gate return (bp);
8487c478bd9Sstevel@tonic-gate }
849