--- /dev/null
+.\" $NetBSD: mkstr.1,v 1.12 2012/05/12 14:52:57 reed Exp $
+.\"
+.\" Copyright (c) 1980, 1990, 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.
+.\"
+.\" @(#)mkstr.1 8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt MKSTR 1
+.Os
+.Sh NAME
+.Nm mkstr
+.Nd create an error message file by massaging C source
+.Sh SYNOPSIS
+.Nm
+.Op Fl
+.Ar messagefile
+.Ar prefix file ...
+.Sh DESCRIPTION
+.Nm
+creates files containing error messages extracted from C source,
+and restructures the same C source, to use the created error message
+file.
+The intent of
+.Nm
+was to reduce the size of large programs and
+reduce swapping (see
+.Sx BUGS
+section below).
+.Pp
+.Nm
+processes each of the specified
+.Ar files ,
+placing a restructured version of the input in a file whose name
+consists of the specified
+.Ar prefix
+and the original name.
+A typical usage of
+.Nm
+is
+.Bd -literal -offset indent
+mkstr pistrings xx *.c
+.Ed
+.Pp
+This command causes all the error messages from the C source
+files in the current directory to be placed in the file
+.Ar pistrings
+and restructured copies of the sources to be placed in
+files whose names are prefixed with
+.Ar \&xx .
+.Pp
+Options:
+.Bl -tag -width indent
+.It Fl
+Error messages are placed at the end of the specified
+message file for recompiling part of a large
+.Nm
+ed
+program.
+.El
+.Pp
+.Nm
+finds error messages in the source by
+searching for the string
+.Li \&`error("'
+in the input stream.
+Each time it occurs, the C string starting at the
+.Sq \&"\&
+is stored
+in the message file followed by a null character and a new-line character;
+The new source is restructured with
+.Xr lseek 2
+pointers into the error message file for retrieval.
+.Bd -literal -offset indent
+char efilname = "/usr/lib/pi_strings";
+int efil = -1;
+
+error(a1, a2, a3, a4)
+\&{
+ char buf[256];
+
+ if (efil \*[Lt] 0) {
+ efil = open(efilname, 0);
+ if (efil \*[Lt] 0) {
+oops:
+ perror(efilname);
+ exit 1 ;
+ }
+ }
+ if (lseek(efil, a1, 0) \*[Lt] 0 || read(efil, buf, 256) \*[Le] 0)
+ goto oops;
+ printf(buf, a2, a3, a4);
+}
+.Ed
+.Sh SEE ALSO
+.Xr xstr 1 ,
+.Xr lseek 2
+.Sh HISTORY
+.Nm
+appeared in
+.Bx 1 .
+.Sh BUGS
+.Nm
+was intended for the limited architecture of the PDP-11 family.
+Very few programs actually use it.
+It is not an efficient method, the error messages
+should be stored in the program text.
--- /dev/null
+/* $NetBSD: mkstr.c,v 1.16 2012/03/20 20:34:58 matt 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 1.16 2012/03/20 20:34:58 matt 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 main(int, char **);
+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);
+}