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fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
334 lines
7.1 KiB
C
334 lines
7.1 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mkstr.c 8.1 (Berkeley) 6/6/93";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.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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#define ungetchar(c) ungetc(c, stdin)
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/*
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* mkstr - create a string error message file by massaging C source
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*
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* Bill Joy UCB August 1977
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*
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* Modified March 1978 to hash old messages to be able to recompile
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* without addding messages to the message file (usually)
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*
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* Based on an earlier program conceived by Bill Joy and Chuck Haley
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*
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* Program to create a string error message file
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* from a group of C programs. Arguments are the name
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* of the file where the strings are to be placed, the
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* prefix of the new files where the processed source text
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* is to be placed, and the files to be processed.
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*
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* The program looks for 'error("' in the source stream.
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* Whenever it finds this, the following characters from the '"'
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* to a '"' are replaced by 'seekpt' where seekpt is a
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* pointer into the error message file.
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* If the '(' is not immediately followed by a '"' no change occurs.
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*
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* The optional '-' causes strings to be added at the end of the
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* existing error message file for recompilation of single routines.
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*/
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static FILE *mesgread, *mesgwrite;
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static char name[100], *np;
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void copystr(void);
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int fgetNUL(char *, int, FILE *);
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unsigned hashit(char *, int, unsigned);
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void inithash(void);
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int match(const char *);
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int octdigit(char);
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void process(void);
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void usage(void);
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int
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main(int argc, char *argv[])
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{
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char addon = 0;
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size_t namelen;
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argc--, argv++;
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if (argc > 1 && argv[0][0] == '-')
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addon++, argc--, argv++;
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if (argc < 3)
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usage();
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mesgwrite = fopen(argv[0], addon ? "a" : "w");
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if (mesgwrite == NULL)
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err(1, "%s", argv[0]);
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mesgread = fopen(argv[0], "r");
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if (mesgread == NULL)
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err(1, "%s", argv[0]);
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inithash();
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argc--, argv++;
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namelen = strlcpy(name, argv[0], sizeof(name));
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if (namelen >= sizeof(name)) {
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errno = ENAMETOOLONG;
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err(1, "%s", argv[0]);
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}
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np = name + namelen;
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argc--, argv++;
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do {
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if (strlcpy(np, argv[0], sizeof(name) - namelen) >=
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sizeof(name) - namelen) {
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errno = ENAMETOOLONG;
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err(1, "%s%s", name, argv[0]);
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}
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if (freopen(name, "w", stdout) == NULL)
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err(1, "%s", name);
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if (freopen(argv[0], "r", stdin) == NULL)
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err(1, "%s", argv[0]);
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process();
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argc--, argv++;
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} while (argc > 0);
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exit(0);
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}
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void
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usage(void)
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{
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fprintf(stderr, "usage: mkstr [-] mesgfile prefix file ...\n");
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exit(1);
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}
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void
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process(void)
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{
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int c;
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for (;;) {
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c = getchar();
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if (c == EOF)
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return;
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if (c != 'e') {
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putchar(c);
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continue;
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}
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if (match("error(")) {
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printf("error(");
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c = getchar();
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if (c != '"')
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putchar(c);
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else
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copystr();
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}
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}
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}
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int
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match(const char *ocp)
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{
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const char *cp;
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int c;
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for (cp = ocp + 1; *cp; cp++) {
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c = getchar();
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if (c != *cp) {
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while (ocp < cp)
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putchar(*ocp++);
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ungetchar(c);
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return (0);
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}
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}
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return (1);
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}
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void
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copystr(void)
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{
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int c, ch;
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char buf[512];
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char *cp = buf;
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for (;;) {
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if (cp == buf + sizeof(buf) - 2)
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errx(1, "message too long");
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c = getchar();
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if (c == EOF)
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break;
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switch (c) {
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case '"':
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*cp++ = 0;
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goto out;
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case '\\':
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c = getchar();
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switch (c) {
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case 'b':
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c = '\b';
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break;
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case 't':
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c = '\t';
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break;
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case 'r':
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c = '\r';
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break;
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case 'n':
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c = '\n';
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break;
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case '\n':
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continue;
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case 'f':
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c = '\f';
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break;
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case '0':
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c = 0;
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break;
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case '\\':
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break;
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default:
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if (!octdigit(c))
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break;
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c -= '0';
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ch = getchar();
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if (!octdigit(ch))
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break;
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c <<= 7, c += ch - '0';
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ch = getchar();
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if (!octdigit(ch))
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break;
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c <<= 3, c+= ch - '0', ch = -1;
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break;
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}
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}
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*cp++ = c;
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}
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out:
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*cp = 0;
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printf("%d", hashit(buf, 1, 0));
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}
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int
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octdigit(char c)
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{
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return (c >= '0' && c <= '7');
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}
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void
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inithash(void)
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{
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char buf[512];
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int mesgpt = 0;
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rewind(mesgread);
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while (fgetNUL(buf, sizeof buf, mesgread) != 0) {
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hashit(buf, 0, mesgpt);
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mesgpt += strlen(buf) + 2;
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}
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}
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#define NBUCKETS 511
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static struct hash {
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long hval;
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unsigned hpt;
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struct hash *hnext;
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} *bucket[NBUCKETS];
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unsigned
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hashit(char *str, int really, unsigned fakept)
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{
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int i;
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struct hash *hp;
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char buf[512];
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long hashval = 0;
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char *cp;
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if (really)
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fflush(mesgwrite);
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for (cp = str; *cp;)
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hashval = (hashval << 1) + *cp++;
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i = hashval % NBUCKETS;
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if (i < 0)
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i += NBUCKETS;
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if (really != 0)
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for (hp = bucket[i]; hp != 0; hp = hp->hnext)
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if (hp->hval == hashval) {
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fseek(mesgread, (long) hp->hpt, 0);
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fgetNUL(buf, sizeof buf, mesgread);
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/*
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fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf);
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*/
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if (strcmp(buf, str) == 0)
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break;
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}
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if (!really || hp == 0) {
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hp = (struct hash *) calloc(1, sizeof *hp);
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if (hp == NULL)
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err(1, NULL);
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hp->hnext = bucket[i];
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hp->hval = hashval;
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hp->hpt = really ? ftell(mesgwrite) : fakept;
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if (really) {
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fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite);
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fwrite("\n", sizeof (char), 1, mesgwrite);
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}
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bucket[i] = hp;
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}
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/*
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fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt);
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*/
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return (hp->hpt);
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}
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int
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fgetNUL(char *obuf, int rmdr, FILE *file)
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{
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int c;
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char *buf = obuf;
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while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF)
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*buf++ = c;
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*buf++ = 0;
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getc(file);
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return ((feof(file) || ferror(file)) ? 0 : 1);
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}
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