diff options
Diffstat (limited to 'usr.bin/mkstr/mkstr.c')
| -rw-r--r-- | usr.bin/mkstr/mkstr.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/usr.bin/mkstr/mkstr.c b/usr.bin/mkstr/mkstr.c new file mode 100644 index 0000000..0bfe6ca --- /dev/null +++ b/usr.bin/mkstr/mkstr.c @@ -0,0 +1,320 @@ +/* $NetBSD: mkstr.c,v 1.17 2016/09/05 00:40:29 sevan Exp $ */ + +/* + * Copyright (c) 1980, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1980, 1993\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)mkstr.c 8.1 (Berkeley) 6/6/93"; +#else +__RCSID("$NetBSD: mkstr.c,v 1.17 2016/09/05 00:40:29 sevan Exp $"); +#endif +#endif /* not lint */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define ungetchar(c) ungetc(c, stdin) + +/* + * mkstr - create a string error message file by massaging C source + * + * Bill Joy UCB August 1977 + * + * Modified March 1978 to hash old messages to be able to recompile + * without addding messages to the message file (usually) + * + * Based on an earlier program conceived by Bill Joy and Chuck Haley + * + * Program to create a string error message file + * from a group of C programs. Arguments are the name + * of the file where the strings are to be placed, the + * prefix of the new files where the processed source text + * is to be placed, and the files to be processed. + * + * The program looks for 'error("' in the source stream. + * Whenever it finds this, the following characters from the '"' + * to a '"' are replaced by 'seekpt' where seekpt is a + * pointer into the error message file. + * If the '(' is not immediately followed by a '"' no change occurs. + * + * The optional '-' causes strings to be added at the end of the + * existing error message file for recompilation of single routines. + */ + + +FILE *mesgread, *mesgwrite; +char *progname; +const char usagestr[] = "usage: %s [ - ] mesgfile prefix file ...\n"; +char name[100], *np; + +void process(void); +int match(const char *); +int octdigit(char); +void inithash(void); +long hashit(const char *, char, long); +void copystr(void); +int fgetNUL(char *, int, FILE *); + +int +main(int argc, char *argv[]) +{ + char addon = 0; + + argc--, progname = *argv++; + if (argc > 1 && argv[0][0] == '-') + addon++, argc--, argv++; + if (argc < 3) + fprintf(stderr, usagestr, progname), exit(1); + mesgwrite = fopen(argv[0], addon ? "a" : "w"); + if (mesgwrite == NULL) + perror(argv[0]), exit(1); + mesgread = fopen(argv[0], "r"); + if (mesgread == NULL) + perror(argv[0]), exit(1); + inithash(); + argc--, argv++; + strlcpy(name, argv[0], sizeof(name)); + np = name + strlen(name); + argc--, argv++; + do { + strlcpy(np, argv[0], sizeof(name) - (np - name)); + if (freopen(name, "w", stdout) == NULL) + perror(name), exit(1); + if (freopen(argv[0], "r", stdin) == NULL) + perror(argv[0]), exit(1); + process(); + argc--, argv++; + } while (argc > 0); + exit(0); +} + +void +process(void) +{ + int c; + + for (;;) { + c = getchar(); + if (c == EOF) + return; + if (c != 'e') { + putchar(c); + continue; + } + if (match("error(")) { + printf("error("); + c = getchar(); + if (c != '"') + putchar(c); + else + copystr(); + } + } +} + +int +match(const char *ocp) +{ + const char *cp; + int c; + + for (cp = ocp + 1; *cp; cp++) { + c = getchar(); + if (c != *cp) { + while (ocp < cp) + putchar(*ocp++); + ungetchar(c); + return (0); + } + } + return (1); +} + +void +copystr(void) +{ + int c, ch; + char buf[512]; + char *cp = buf; + + for (;;) { + c = getchar(); + if (c == EOF) + break; + switch (c) { + + case '"': + *cp++ = 0; + goto out; + case '\\': + c = getchar(); + switch (c) { + + case 'b': + c = '\b'; + break; + case 't': + c = '\t'; + break; + case 'r': + c = '\r'; + break; + case 'n': + c = '\n'; + break; + case '\n': + continue; + case 'f': + c = '\f'; + break; + case '0': + c = 0; + break; + case '\\': + break; + default: + if (!octdigit(c)) + break; + c -= '0'; + ch = getchar(); + if (!octdigit(ch)) + break; + c <<= 7, c += ch - '0'; + ch = getchar(); + if (!octdigit(ch)) + break; + c <<= 3, c+= ch - '0', ch = -1; + break; + } + } + *cp++ = c; + } +out: + *cp = 0; + printf("%ld", hashit(buf, 1, 0)); +} + +int +octdigit(char c) +{ + + return (c >= '0' && c <= '7'); +} + +void +inithash(void) +{ + char buf[512]; + long mesgpt = 0; + + rewind(mesgread); + while (fgetNUL(buf, sizeof buf, mesgread) != 0) { + hashit(buf, 0, mesgpt); + mesgpt += strlen(buf) + 2; + } +} + +#define NBUCKETS 511 + +struct hash { + long hval; + long hpt; + struct hash *hnext; +} *bucket[NBUCKETS]; + +long +hashit(const char *str, char really, long fakept) +{ + int i; + struct hash *hp; + char buf[512]; + long hashval = 0; + const char *cp; + +#ifdef __GNUC__ + hp = NULL; /* XXX gcc */ +#endif + if (really) + fflush(mesgwrite); + for (cp = str; *cp;) + hashval = (hashval << 1) + *cp++; + i = hashval % NBUCKETS; + if (i < 0) + i += NBUCKETS; + if (really != 0) + for (hp = bucket[i]; hp != 0; hp = hp->hnext) + if (hp->hval == hashval) { + fseek(mesgread, hp->hpt, 0); + fgetNUL(buf, sizeof buf, mesgread); +/* + fprintf(stderr, "Got (from %ld) %s\n", hp->hpt, buf); +*/ + if (strcmp(buf, str) == 0) + break; + } + if (!really || hp == 0) { + hp = (struct hash *) calloc(1, sizeof *hp); + hp->hnext = bucket[i]; + hp->hval = hashval; + hp->hpt = really ? ftell(mesgwrite) : fakept; + if (really) { + fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite); + fwrite("\n", sizeof (char), 1, mesgwrite); + } + bucket[i] = hp; + } +/* + fprintf(stderr, "%s hashed to %ld at %ld\n", str, hp->hval, hp->hpt); +*/ + return (hp->hpt); +} + +#include <sys/types.h> +#include <sys/stat.h> + +int +fgetNUL(char *obuf, int rmdr, FILE *file) +{ + int c; + char *buf = obuf; + + while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF) + *buf++ = c; + *buf++ = 0; + getc(file); + return ((feof(file) || ferror(file)) ? 0 : 1); +} |