xref: /freebsd/usr.bin/mkstr/mkstr.c (revision c26c35e7d9d946a90fced6875aee2235ec0fa450)
19b50d902SRodney W. Grimes /*
29b50d902SRodney W. Grimes  * Copyright (c) 1980, 1993
39b50d902SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
49b50d902SRodney W. Grimes  *
59b50d902SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
69b50d902SRodney W. Grimes  * modification, are permitted provided that the following conditions
79b50d902SRodney W. Grimes  * are met:
89b50d902SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
99b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
109b50d902SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
119b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
129b50d902SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
139b50d902SRodney W. Grimes  * 3. All advertising materials mentioning features or use of this software
149b50d902SRodney W. Grimes  *    must display the following acknowledgement:
159b50d902SRodney W. Grimes  *	This product includes software developed by the University of
169b50d902SRodney W. Grimes  *	California, Berkeley and its contributors.
179b50d902SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
189b50d902SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
199b50d902SRodney W. Grimes  *    without specific prior written permission.
209b50d902SRodney W. Grimes  *
219b50d902SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
229b50d902SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
239b50d902SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
249b50d902SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
259b50d902SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
269b50d902SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
279b50d902SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
289b50d902SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
299b50d902SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
309b50d902SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
319b50d902SRodney W. Grimes  * SUCH DAMAGE.
329b50d902SRodney W. Grimes  */
339b50d902SRodney W. Grimes 
349b50d902SRodney W. Grimes #ifndef lint
352487a449SPhilippe Charnier static const char copyright[] =
369b50d902SRodney W. Grimes "@(#) Copyright (c) 1980, 1993\n\
379b50d902SRodney W. Grimes 	The Regents of the University of California.  All rights reserved.\n";
389b50d902SRodney W. Grimes #endif /* not lint */
399b50d902SRodney W. Grimes 
409b50d902SRodney W. Grimes #ifndef lint
412487a449SPhilippe Charnier #if 0
429b50d902SRodney W. Grimes static char sccsid[] = "@(#)mkstr.c	8.1 (Berkeley) 6/6/93";
432487a449SPhilippe Charnier #endif
449b50d902SRodney W. Grimes #endif /* not lint */
459b50d902SRodney W. Grimes 
464b952f84SPhilippe Charnier #include <sys/cdefs.h>
474b952f84SPhilippe Charnier __FBSDID("$FreeBSD$");
484b952f84SPhilippe Charnier 
492487a449SPhilippe Charnier #include <err.h>
50c26c35e7STim J. Robbins #include <errno.h>
519b50d902SRodney W. Grimes #include <stdio.h>
522487a449SPhilippe Charnier #include <stdlib.h>
5332744e40SJohn Birrell #include <string.h>
549b50d902SRodney W. Grimes 
559b50d902SRodney W. Grimes #define	ungetchar(c)	ungetc(c, stdin)
569b50d902SRodney W. Grimes 
579b50d902SRodney W. Grimes /*
589b50d902SRodney W. Grimes  * mkstr - create a string error message file by massaging C source
599b50d902SRodney W. Grimes  *
609b50d902SRodney W. Grimes  * Bill Joy UCB August 1977
619b50d902SRodney W. Grimes  *
629b50d902SRodney W. Grimes  * Modified March 1978 to hash old messages to be able to recompile
639b50d902SRodney W. Grimes  * without addding messages to the message file (usually)
649b50d902SRodney W. Grimes  *
659b50d902SRodney W. Grimes  * Based on an earlier program conceived by Bill Joy and Chuck Haley
669b50d902SRodney W. Grimes  *
679b50d902SRodney W. Grimes  * Program to create a string error message file
689b50d902SRodney W. Grimes  * from a group of C programs.  Arguments are the name
699b50d902SRodney W. Grimes  * of the file where the strings are to be placed, the
709b50d902SRodney W. Grimes  * prefix of the new files where the processed source text
719b50d902SRodney W. Grimes  * is to be placed, and the files to be processed.
729b50d902SRodney W. Grimes  *
739b50d902SRodney W. Grimes  * The program looks for 'error("' in the source stream.
749b50d902SRodney W. Grimes  * Whenever it finds this, the following characters from the '"'
759b50d902SRodney W. Grimes  * to a '"' are replaced by 'seekpt' where seekpt is a
769b50d902SRodney W. Grimes  * pointer into the error message file.
779b50d902SRodney W. Grimes  * If the '(' is not immediately followed by a '"' no change occurs.
789b50d902SRodney W. Grimes  *
799b50d902SRodney W. Grimes  * The optional '-' causes strings to be added at the end of the
809b50d902SRodney W. Grimes  * existing error message file for recompilation of single routines.
819b50d902SRodney W. Grimes  */
829b50d902SRodney W. Grimes 
839b50d902SRodney W. Grimes FILE	*mesgread, *mesgwrite;
849b50d902SRodney W. Grimes char	name[100], *np;
859b50d902SRodney W. Grimes 
86d3cb5dedSWarner Losh void copystr(void);
87d3cb5dedSWarner Losh int fgetNUL(char *, int, FILE *);
88ffc6a8e3SMark Murray unsigned hashit(char *, int, unsigned);
89d3cb5dedSWarner Losh void inithash(void);
90d3cb5dedSWarner Losh int match(const char *);
91d3cb5dedSWarner Losh int octdigit(char);
92d3cb5dedSWarner Losh void process(void);
93ffc6a8e3SMark Murray void usage(void);
942487a449SPhilippe Charnier 
952487a449SPhilippe Charnier int
96ffc6a8e3SMark Murray main(int argc, char *argv[])
979b50d902SRodney W. Grimes {
989b50d902SRodney W. Grimes 	char addon = 0;
99c26c35e7STim J. Robbins 	size_t namelen;
1009b50d902SRodney W. Grimes 
1012487a449SPhilippe Charnier 	argc--, argv++;
1029b50d902SRodney W. Grimes 	if (argc > 1 && argv[0][0] == '-')
1039b50d902SRodney W. Grimes 		addon++, argc--, argv++;
1049b50d902SRodney W. Grimes 	if (argc < 3)
1052487a449SPhilippe Charnier 		usage();
1069b50d902SRodney W. Grimes 	mesgwrite = fopen(argv[0], addon ? "a" : "w");
1079b50d902SRodney W. Grimes 	if (mesgwrite == NULL)
1082487a449SPhilippe Charnier 		err(1, "%s", argv[0]);
1099b50d902SRodney W. Grimes 	mesgread = fopen(argv[0], "r");
1109b50d902SRodney W. Grimes 	if (mesgread == NULL)
1112487a449SPhilippe Charnier 		err(1, "%s", argv[0]);
1129b50d902SRodney W. Grimes 	inithash();
1139b50d902SRodney W. Grimes 	argc--, argv++;
114c26c35e7STim J. Robbins 	namelen = strlcpy(name, argv[0], sizeof(name));
115c26c35e7STim J. Robbins 	if (namelen >= sizeof(name)) {
116c26c35e7STim J. Robbins 		errno = ENAMETOOLONG;
117c26c35e7STim J. Robbins 		err(1, "%s", argv[0]);
118c26c35e7STim J. Robbins 	}
119c26c35e7STim J. Robbins 	np = name + namelen;
1209b50d902SRodney W. Grimes 	argc--, argv++;
1219b50d902SRodney W. Grimes 	do {
122c26c35e7STim J. Robbins 		if (strlcpy(np, argv[0], sizeof(name) - namelen) >=
123c26c35e7STim J. Robbins 		    sizeof(name) - namelen) {
124c26c35e7STim J. Robbins 			errno = ENAMETOOLONG;
125c26c35e7STim J. Robbins 			err(1, "%s%s", name, argv[0]);
126c26c35e7STim J. Robbins 		}
1279b50d902SRodney W. Grimes 		if (freopen(name, "w", stdout) == NULL)
1282487a449SPhilippe Charnier 			err(1, "%s", name);
1299b50d902SRodney W. Grimes 		if (freopen(argv[0], "r", stdin) == NULL)
1302487a449SPhilippe Charnier 			err(1, "%s", argv[0]);
1319b50d902SRodney W. Grimes 		process();
1329b50d902SRodney W. Grimes 		argc--, argv++;
1339b50d902SRodney W. Grimes 	} while (argc > 0);
1349b50d902SRodney W. Grimes 	exit(0);
1359b50d902SRodney W. Grimes }
1369b50d902SRodney W. Grimes 
137ffc6a8e3SMark Murray void
138ffc6a8e3SMark Murray usage(void)
1392487a449SPhilippe Charnier {
1402487a449SPhilippe Charnier 	fprintf(stderr, "usage: mkstr [-] mesgfile prefix file ...\n");
1412487a449SPhilippe Charnier 	exit(1);
1422487a449SPhilippe Charnier }
1432487a449SPhilippe Charnier 
1442487a449SPhilippe Charnier void
145ffc6a8e3SMark Murray process(void)
1469b50d902SRodney W. Grimes {
1471627c04dSDavid Malone 	int c;
1489b50d902SRodney W. Grimes 
1499b50d902SRodney W. Grimes 	for (;;) {
1509b50d902SRodney W. Grimes 		c = getchar();
1519b50d902SRodney W. Grimes 		if (c == EOF)
1529b50d902SRodney W. Grimes 			return;
1539b50d902SRodney W. Grimes 		if (c != 'e') {
1549b50d902SRodney W. Grimes 			putchar(c);
1559b50d902SRodney W. Grimes 			continue;
1569b50d902SRodney W. Grimes 		}
1579b50d902SRodney W. Grimes 		if (match("error(")) {
1589b50d902SRodney W. Grimes 			printf("error(");
1599b50d902SRodney W. Grimes 			c = getchar();
1609b50d902SRodney W. Grimes 			if (c != '"')
1619b50d902SRodney W. Grimes 				putchar(c);
1629b50d902SRodney W. Grimes 			else
1639b50d902SRodney W. Grimes 				copystr();
1649b50d902SRodney W. Grimes 		}
1659b50d902SRodney W. Grimes 	}
1669b50d902SRodney W. Grimes }
1679b50d902SRodney W. Grimes 
1682487a449SPhilippe Charnier int
169ffc6a8e3SMark Murray match(const char *ocp)
1709b50d902SRodney W. Grimes {
1711627c04dSDavid Malone 	const char *cp;
1721627c04dSDavid Malone 	int c;
1739b50d902SRodney W. Grimes 
1749b50d902SRodney W. Grimes 	for (cp = ocp + 1; *cp; cp++) {
1759b50d902SRodney W. Grimes 		c = getchar();
1769b50d902SRodney W. Grimes 		if (c != *cp) {
1779b50d902SRodney W. Grimes 			while (ocp < cp)
1789b50d902SRodney W. Grimes 				putchar(*ocp++);
1799b50d902SRodney W. Grimes 			ungetchar(c);
1809b50d902SRodney W. Grimes 			return (0);
1819b50d902SRodney W. Grimes 		}
1829b50d902SRodney W. Grimes 	}
1839b50d902SRodney W. Grimes 	return (1);
1849b50d902SRodney W. Grimes }
1859b50d902SRodney W. Grimes 
1862487a449SPhilippe Charnier void
187ffc6a8e3SMark Murray copystr(void)
1889b50d902SRodney W. Grimes {
1891627c04dSDavid Malone 	int c, ch;
1909b50d902SRodney W. Grimes 	char buf[512];
191ffc6a8e3SMark Murray 	char *cp = buf;
1929b50d902SRodney W. Grimes 
1939b50d902SRodney W. Grimes 	for (;;) {
1949b50d902SRodney W. Grimes 		c = getchar();
1959b50d902SRodney W. Grimes 		if (c == EOF)
1969b50d902SRodney W. Grimes 			break;
1979b50d902SRodney W. Grimes 		switch (c) {
1989b50d902SRodney W. Grimes 
1999b50d902SRodney W. Grimes 		case '"':
2009b50d902SRodney W. Grimes 			*cp++ = 0;
2019b50d902SRodney W. Grimes 			goto out;
2029b50d902SRodney W. Grimes 		case '\\':
2039b50d902SRodney W. Grimes 			c = getchar();
2049b50d902SRodney W. Grimes 			switch (c) {
2059b50d902SRodney W. Grimes 
2069b50d902SRodney W. Grimes 			case 'b':
2079b50d902SRodney W. Grimes 				c = '\b';
2089b50d902SRodney W. Grimes 				break;
2099b50d902SRodney W. Grimes 			case 't':
2109b50d902SRodney W. Grimes 				c = '\t';
2119b50d902SRodney W. Grimes 				break;
2129b50d902SRodney W. Grimes 			case 'r':
2139b50d902SRodney W. Grimes 				c = '\r';
2149b50d902SRodney W. Grimes 				break;
2159b50d902SRodney W. Grimes 			case 'n':
2169b50d902SRodney W. Grimes 				c = '\n';
2179b50d902SRodney W. Grimes 				break;
2189b50d902SRodney W. Grimes 			case '\n':
2199b50d902SRodney W. Grimes 				continue;
2209b50d902SRodney W. Grimes 			case 'f':
2219b50d902SRodney W. Grimes 				c = '\f';
2229b50d902SRodney W. Grimes 				break;
2239b50d902SRodney W. Grimes 			case '0':
2249b50d902SRodney W. Grimes 				c = 0;
2259b50d902SRodney W. Grimes 				break;
2269b50d902SRodney W. Grimes 			case '\\':
2279b50d902SRodney W. Grimes 				break;
2289b50d902SRodney W. Grimes 			default:
2299b50d902SRodney W. Grimes 				if (!octdigit(c))
2309b50d902SRodney W. Grimes 					break;
2319b50d902SRodney W. Grimes 				c -= '0';
2329b50d902SRodney W. Grimes 				ch = getchar();
2339b50d902SRodney W. Grimes 				if (!octdigit(ch))
2349b50d902SRodney W. Grimes 					break;
2359b50d902SRodney W. Grimes 				c <<= 7, c += ch - '0';
2369b50d902SRodney W. Grimes 				ch = getchar();
2379b50d902SRodney W. Grimes 				if (!octdigit(ch))
2389b50d902SRodney W. Grimes 					break;
2399b50d902SRodney W. Grimes 				c <<= 3, c+= ch - '0', ch = -1;
2409b50d902SRodney W. Grimes 				break;
2419b50d902SRodney W. Grimes 			}
2429b50d902SRodney W. Grimes 		}
2439b50d902SRodney W. Grimes 		*cp++ = c;
2449b50d902SRodney W. Grimes 	}
2459b50d902SRodney W. Grimes out:
2469b50d902SRodney W. Grimes 	*cp = 0;
2479b50d902SRodney W. Grimes 	printf("%d", hashit(buf, 1, NULL));
2489b50d902SRodney W. Grimes }
2499b50d902SRodney W. Grimes 
2502487a449SPhilippe Charnier int
251ffc6a8e3SMark Murray octdigit(char c)
2529b50d902SRodney W. Grimes {
2539b50d902SRodney W. Grimes 
2549b50d902SRodney W. Grimes 	return (c >= '0' && c <= '7');
2559b50d902SRodney W. Grimes }
2569b50d902SRodney W. Grimes 
2572487a449SPhilippe Charnier void
258ffc6a8e3SMark Murray inithash(void)
2599b50d902SRodney W. Grimes {
2609b50d902SRodney W. Grimes 	char buf[512];
2619b50d902SRodney W. Grimes 	int mesgpt = 0;
2629b50d902SRodney W. Grimes 
2639b50d902SRodney W. Grimes 	rewind(mesgread);
2642487a449SPhilippe Charnier 	while (fgetNUL(buf, sizeof buf, mesgread) != 0) {
2659b50d902SRodney W. Grimes 		hashit(buf, 0, mesgpt);
2669b50d902SRodney W. Grimes 		mesgpt += strlen(buf) + 2;
2679b50d902SRodney W. Grimes 	}
2689b50d902SRodney W. Grimes }
2699b50d902SRodney W. Grimes 
2709b50d902SRodney W. Grimes #define	NBUCKETS	511
2719b50d902SRodney W. Grimes 
2729b50d902SRodney W. Grimes struct	hash {
2739b50d902SRodney W. Grimes 	long	hval;
2749b50d902SRodney W. Grimes 	unsigned hpt;
2759b50d902SRodney W. Grimes 	struct	hash *hnext;
2769b50d902SRodney W. Grimes } *bucket[NBUCKETS];
2779b50d902SRodney W. Grimes 
2782487a449SPhilippe Charnier unsigned
279ffc6a8e3SMark Murray hashit(char *str, int really, unsigned fakept)
2809b50d902SRodney W. Grimes {
2819b50d902SRodney W. Grimes 	int i;
282ffc6a8e3SMark Murray 	struct hash *hp;
2839b50d902SRodney W. Grimes 	char buf[512];
2849b50d902SRodney W. Grimes 	long hashval = 0;
285ffc6a8e3SMark Murray 	char *cp;
2869b50d902SRodney W. Grimes 
2879b50d902SRodney W. Grimes 	if (really)
2889b50d902SRodney W. Grimes 		fflush(mesgwrite);
2899b50d902SRodney W. Grimes 	for (cp = str; *cp;)
2909b50d902SRodney W. Grimes 		hashval = (hashval << 1) + *cp++;
2919b50d902SRodney W. Grimes 	i = hashval % NBUCKETS;
2929b50d902SRodney W. Grimes 	if (i < 0)
2939b50d902SRodney W. Grimes 		i += NBUCKETS;
2949b50d902SRodney W. Grimes 	if (really != 0)
2959b50d902SRodney W. Grimes 		for (hp = bucket[i]; hp != 0; hp = hp->hnext)
2969b50d902SRodney W. Grimes 		if (hp->hval == hashval) {
2979b50d902SRodney W. Grimes 			fseek(mesgread, (long) hp->hpt, 0);
2989b50d902SRodney W. Grimes 			fgetNUL(buf, sizeof buf, mesgread);
2999b50d902SRodney W. Grimes /*
3009b50d902SRodney W. Grimes 			fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf);
3019b50d902SRodney W. Grimes */
3029b50d902SRodney W. Grimes 			if (strcmp(buf, str) == 0)
3039b50d902SRodney W. Grimes 				break;
3049b50d902SRodney W. Grimes 		}
3059b50d902SRodney W. Grimes 	if (!really || hp == 0) {
3069b50d902SRodney W. Grimes 		hp = (struct hash *) calloc(1, sizeof *hp);
3074b952f84SPhilippe Charnier 		if (hp == NULL)
3084b952f84SPhilippe Charnier 			err(1, NULL);
3099b50d902SRodney W. Grimes 		hp->hnext = bucket[i];
3109b50d902SRodney W. Grimes 		hp->hval = hashval;
3119b50d902SRodney W. Grimes 		hp->hpt = really ? ftell(mesgwrite) : fakept;
3129b50d902SRodney W. Grimes 		if (really) {
3139b50d902SRodney W. Grimes 			fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite);
3149b50d902SRodney W. Grimes 			fwrite("\n", sizeof (char), 1, mesgwrite);
3159b50d902SRodney W. Grimes 		}
3169b50d902SRodney W. Grimes 		bucket[i] = hp;
3179b50d902SRodney W. Grimes 	}
3189b50d902SRodney W. Grimes /*
3199b50d902SRodney W. Grimes 	fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt);
3209b50d902SRodney W. Grimes */
3219b50d902SRodney W. Grimes 	return (hp->hpt);
3229b50d902SRodney W. Grimes }
3239b50d902SRodney W. Grimes 
3242487a449SPhilippe Charnier int
325ffc6a8e3SMark Murray fgetNUL(char *obuf, int rmdr, FILE *file)
3269b50d902SRodney W. Grimes {
3271627c04dSDavid Malone 	int c;
328ffc6a8e3SMark Murray 	char *buf = obuf;
3299b50d902SRodney W. Grimes 
3309b50d902SRodney W. Grimes 	while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF)
3319b50d902SRodney W. Grimes 		*buf++ = c;
3329b50d902SRodney W. Grimes 	*buf++ = 0;
3339b50d902SRodney W. Grimes 	getc(file);
3342487a449SPhilippe Charnier 	return ((feof(file) || ferror(file)) ? 0 : 1);
3359b50d902SRodney W. Grimes }
336