OpenSolaris_b135/ucbcmd/mkstr/mkstr.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <sys/param.h>
#define ungetchar(c) ungetc(c, stdin)
#define NBUCKETS 511
static char usagestr[] = "usage: %s [ - ] mesgfile prefix file ...\n";
static FILE *mesgread, *mesgwrite;
static void process(void);
static int match(char *ocp);
static void copystr(void);
static int octdigit(char c);
static void inithash(void);
static int hashit(char *str, char really, unsigned int fakept);
static int fgetNUL(char *obuf, int rmdr, FILE *file);
int
main(int argc, char *argv[])
{
char addon = 0;
char *progname, *np, name[MAXPATHLEN];
size_t size = 0;
size_t len;
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
(void) textdomain(TEXT_DOMAIN);
argc--, progname = *argv++;
if (argc > 1 && argv[0][0] == '-')
addon++, argc--, argv++;
if (argc < 3)
(void) fprintf(stderr, gettext(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++;
if (strlcpy(name, argv[0], sizeof (name)) >= sizeof (name)) {
(void) fprintf(stderr, gettext("%s: %s: string too long"),
progname, argv[0]);
exit(1);
}
np = name + strlen(name);
len = strlen(name);
np = name + len;
size = sizeof (name) - len;
argc--, argv++;
do {
if (strlcpy(np, argv[0], size) >= size) {
(void) fprintf(stderr,
gettext("%s: %s: string too long"),
progname, argv[0]);
exit(1);
}
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);
return (0);
}
static void
process(void)
{
int c;
for (;;) {
c = getchar();
if (c == EOF)
return;
if (c != 'e') {
(void) putchar(c);
continue;
}
if (match("error(")) {
(void) printf(gettext("error("));
c = getchar();
if (c != '"')
(void) putchar(c);
else
copystr();
}
}
}
static int
match(char *ocp)
{
char *cp;
int c;
for (cp = ocp + 1; *cp; cp++) {
c = getchar();
if (c != *cp) {
while (ocp < cp)
(void) putchar(*ocp++);
(void) ungetchar(c);
return (0);
}
}
return (1);
}
static 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;
(void) printf("%d", hashit(buf, 1, NULL));
}
static int
octdigit(char c)
{
return (c >= '0' && c <= '7');
}
static void
inithash(void)
{
char buf[512];
int mesgpt = 0;
rewind(mesgread);
while (fgetNUL(buf, sizeof (buf), mesgread) != NULL) {
(void) hashit(buf, 0, mesgpt);
mesgpt += strlen(buf) + 2;
}
}
static struct hash {
long hval;
unsigned int hpt;
struct hash *hnext;
} *bucket[NBUCKETS];
static int
hashit(char *str, char really, unsigned int fakept)
{
int i;
struct hash *hp;
char buf[512];
long hashval = 0;
char *cp;
if (really)
(void) 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) {
(void) fseek(mesgread, (long)hp->hpt, 0);
(void) fgetNUL(buf, sizeof (buf), mesgread);
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) {
(void) fwrite(str, sizeof (char), strlen(str) + 1,
mesgwrite);
(void) fwrite("\n", sizeof (char), 1, mesgwrite);
}
bucket[i] = hp;
}
return (hp->hpt);
}
static 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;
(void) getc(file);
return ((feof(file) || ferror(file)) ? NULL : 1);
}