Initial revision

5 files changed, 556 insertions, 0 deletions

diff --git a/util/et/com_err.c b/util/et/com_err.c
new file mode 100644
index 0000000..8860446
--- /dev/null
+++ b/util/et/com_err.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright 1987, 1988 by MIT Student Information Processing Board.
+ *
+ * For copyright info, see mit-sipb-copyright.h.
+ */
+
+#include <stdio.h>
+#include "mit-sipb-copyright.h"
+
+#ifdef STDARG_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#define VARARGS
+#endif
+
+#include "error_table.h"
+#include "internal.h"
+
+#ifdef notdef
+/*
+ * Protect us from header version (externally visible) of com_err, so
+ * we can survive in a <varargs.h> environment.  I think.
+ */
+#define com_err com_err_external
+#include "com_err.h"
+#undef com_err
+#endif
+
+/* We have problems with varargs definitions if we include com_err.h */
+
+/*
+ * XXX for now, we define error_message by hand.  Ultimately, we
+ * should fix up com_err.h so that it's safe to #include here 
+ * directly.
+ */
+#ifdef __STDC__
+extern char const *error_message (long);
+#else
+extern char *error_message ();
+#endif
+
+static void
+#ifdef __STDC__
+    default_com_err_proc (const char *whoami, long code, const char *fmt, va_list args)
+#else
+    default_com_err_proc (whoami, code, fmt, args)
+    const char *whoami;
+    long code;
+    const char *fmt;
+    va_list args;
+#endif
+{
+    if (whoami) {
+	fputs(whoami, stderr);
+	fputs(": ", stderr);
+    }
+    if (code) {
+	fputs(error_message(code), stderr);
+	fputs(" ", stderr);
+    }
+    if (fmt) {
+        vfprintf (stderr, fmt, args);
+    }
+    /* should do this only on a tty in raw mode */
+    putc('\r', stderr);
+    putc('\n', stderr);
+    fflush(stderr);
+}
+
+#ifdef __STDC__
+typedef void (*errf) (const char *, long, const char *, va_list);
+#else
+typedef void (*errf) ();
+#endif
+
+errf com_err_hook = default_com_err_proc;
+
+void com_err_va (whoami, code, fmt, args)
+    const char *whoami;
+    long code;
+    const char *fmt;
+    va_list args;
+{
+    (*com_err_hook) (whoami, code, fmt, args);
+}
+
+#ifndef VARARGS
+void com_err (const char *whoami,
+	      long code,
+	      const char *fmt, ...)
+{
+#else
+void com_err (va_alist)
+    va_dcl
+{
+    const char *whoami, *fmt;
+    long code;
+#endif
+    va_list pvar;
+
+    if (!com_err_hook)
+	com_err_hook = default_com_err_proc;
+#ifdef VARARGS
+    va_start (pvar);
+    whoami = va_arg (pvar, const char *);
+    code = va_arg (pvar, long);
+    fmt = va_arg (pvar, const char *);
+#else
+    va_start(pvar, fmt);
+#endif
+    com_err_va (whoami, code, fmt, pvar);
+    va_end(pvar);
+}
+
+errf set_com_err_hook (new_proc)
+    errf new_proc;
+{
+    errf x = com_err_hook;
+
+    if (new_proc)
+	com_err_hook = new_proc;
+    else
+	com_err_hook = default_com_err_proc;
+
+    return x;
+}
+
+errf reset_com_err_hook () {
+    errf x = com_err_hook;
+    com_err_hook = default_com_err_proc;
+    return x;
+}
diff --git a/util/et/compile_et.c b/util/et/compile_et.c
new file mode 100644
index 0000000..a6bf02c
--- /dev/null
+++ b/util/et/compile_et.c
@@ -0,0 +1,350 @@
+/*
+ *
+ * Copyright 1986, 1987, 1988
+ * by MIT Student Information Processing Board.
+ *
+ * For copyright info, see "mit-sipb-copyright.h".
+ *
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/file.h>
+#include <string.h>
+#include <sys/param.h>
+#include "mit-sipb-copyright.h"
+#include "compiler.h"
+
+#ifndef lint
+static const char copyright[] =
+    "Copyright 1987,1988 by MIT Student Information Processing Board";
+#endif
+
+extern char *gensym();
+extern char *current_token;
+extern int table_number, current;
+char buffer[BUFSIZ];
+char *table_name = (char *)NULL;
+FILE *hfile, *cfile;
+
+/* C library */
+extern char *malloc();
+extern int errno;
+
+/* lex stuff */
+extern FILE *yyin;
+extern int yylineno;
+
+char * xmalloc (size) unsigned int size; {
+    char * p = malloc (size);
+    if (!p) {
+	perror (whoami);
+	exit (1);
+    }
+    return p;
+}
+
+static int check_arg (str_list, arg) char const *const *str_list, *arg; {
+    while (*str_list)
+	if (!strcmp(arg, *str_list++))
+	    return 1;
+    return 0;
+}
+
+static const char *const debug_args[] = {
+    "d",
+    "debug",
+    0,
+};
+
+static const char *const lang_args[] = {
+    "lang",
+    "language",
+    0,
+};
+
+static const char *const language_names[] = {
+    "C",
+    "K&R C",
+    "C++",
+    0,
+};
+
+static const char * const c_src_prolog[] = {
+    "static const char * const text[] = {\n",
+    0,
+};
+
+static const char * const krc_src_prolog[] = {
+    "#ifdef __STDC__\n",
+    "#define NOARGS void\n",
+    "#else\n",
+    "#define NOARGS\n",
+    "#define const\n",
+    "#endif\n\n",
+    "static const char * const text[] = {\n",
+    0,
+};
+
+static const char *const struct_def[] = {
+    "struct error_table {\n",
+    "    char const * const * msgs;\n",
+    "    long base;\n",
+    "    int n_msgs;\n",
+    "};\n",
+    "struct et_list {\n",
+    "    struct et_list *next;\n",
+    "    const struct error_table * table;\n",
+    "};\n",
+    "extern struct et_list *_et_list;\n",
+    "\n", 0,
+};
+
+static const char warning[] =
+    "/*\n * %s:\n * This file is automatically generated; please do not edit it.\n */\n";
+
+/* pathnames */
+char c_file[MAXPATHLEN];	/* output file */
+char h_file[MAXPATHLEN];	/* output */
+
+static void usage () {
+    fprintf (stderr, "%s: usage: %s ERROR_TABLE\n",
+	     whoami, whoami);
+    exit (1);
+}
+
+static void dup_err (type, one, two) char const *type, *one, *two; {
+    fprintf (stderr, "%s: multiple %s specified: `%s' and `%s'\n",
+	     whoami, type, one, two);
+    usage ();
+}
+
+int main (argc, argv) int argc; char **argv; {
+    char *p, *ename;
+    int len;
+    char const * const *cpp;
+    int got_language = 0;
+
+    /* argument parsing */
+    debug = 0;
+    filename = 0;
+    whoami = argv[0];
+    p = strrchr (whoami, '/');
+    if (p)
+	whoami = p+1;
+    while (argv++, --argc) {
+	char *arg = *argv;
+	if (arg[0] != '-') {
+	    if (filename)
+		dup_err ("filenames", filename, arg);
+	    filename = arg;
+	}
+	else {
+	    arg++;
+	    if (check_arg (debug_args, arg))
+		debug++;
+	    else if (check_arg (lang_args, arg)) {
+		got_language++;
+		arg = *++argv, argc--;
+		if (!arg)
+		    usage ();
+		if (language)
+		    dup_err ("languanges", language_names[(int)language], arg);
+#define check_lang(x,v) else if (!strcasecmp(arg,x)) language = v
+		check_lang ("c", lang_C);
+		check_lang ("ansi_c", lang_C);
+		check_lang ("ansi-c", lang_C);
+		check_lang ("krc", lang_KRC);
+		check_lang ("kr_c", lang_KRC);
+		check_lang ("kr-c", lang_KRC);
+		check_lang ("k&r-c", lang_KRC);
+		check_lang ("k&r_c", lang_KRC);
+		check_lang ("c++", lang_CPP);
+		check_lang ("cplusplus", lang_CPP);
+		check_lang ("c-plus-plus", lang_CPP);
+#undef check_lang
+		else {
+		    fprintf (stderr, "%s: unknown language name `%s'\n",
+			     whoami, arg);
+		    fprintf (stderr, "\tpick one of: C K&R-C\n");
+		    exit (1);
+		}
+	    }
+	    else {
+		fprintf (stderr, "%s: unknown control argument -`%s'\n",
+			 whoami, arg);
+		usage ();
+	    }
+	}
+    }
+    if (!filename)
+	usage ();
+    if (!got_language)
+	language = lang_KRC;
+    else if (language == lang_CPP) {
+	fprintf (stderr, "%s: Sorry, C++ support is not yet finished.\n",
+		 whoami);
+	exit (1);
+    }
+
+    p = xmalloc (strlen (filename) + 5);
+    strcpy (p, filename);
+    filename = p;
+    p = strrchr(filename, '/');
+    if (p == (char *)NULL)
+	p = filename;
+    else
+	p++;
+    ename = p;
+    len = strlen (ename);
+    p += len - 3;
+    if (strcmp (p, ".et"))
+	p += 3;
+    *p++ = '.';
+    /* now p points to where "et" suffix should start */
+    /* generate new filenames */
+    strcpy (p, "c");
+    strcpy (c_file, ename);
+    *p = 'h';
+    strcpy (h_file, ename);
+    strcpy (p, "et");
+
+    yyin = fopen(filename, "r");
+    if (!yyin) {
+	perror(filename);
+	exit(1);
+    }
+
+    hfile = fopen(h_file, "w");
+    if (hfile == (FILE *)NULL) {
+	perror(h_file);
+	exit(1);
+    }
+    fprintf (hfile, warning, h_file);
+
+    cfile = fopen(c_file, "w");
+    if (cfile == (FILE *)NULL) {
+	perror(c_file);
+	exit(1);
+    }
+    fprintf (cfile, warning, c_file);
+
+    /* prologue */
+    if (language == lang_C)
+	cpp = c_src_prolog;
+    else if (language == lang_KRC)
+	cpp = krc_src_prolog;
+    else
+	abort ();
+    while (*cpp)
+	fputs (*cpp++, cfile);
+
+    /* parse it */
+    yyparse();
+    fclose(yyin);		/* bye bye input file */
+
+    fputs ("    0\n};\n\n", cfile);
+    for (cpp = struct_def; *cpp; cpp++)
+	fputs (*cpp, cfile);
+    fprintf(cfile,
+	    "static const struct error_table et = { text, %ldL, %d };\n\n",
+	    table_number, current);
+    fputs("static struct et_list link = { 0, 0 };\n\n",
+	  cfile);
+    fprintf(cfile, "void initialize_%s_error_table (%s) {\n",
+	    table_name, (language == lang_C) ? "void" : "NOARGS");
+    fputs("    if (!link.table) {\n", cfile);
+    fputs("        link.next = _et_list;\n", cfile);
+    fputs("        link.table = &et;\n", cfile);
+    fputs("        _et_list = &link;\n", cfile);
+    fputs("    }\n", cfile);
+    fputs("}\n", cfile);
+    fclose(cfile);
+
+    fprintf (hfile, "extern void initialize_%s_error_table ();\n",
+	     table_name);
+    fprintf (hfile, "#define ERROR_TABLE_BASE_%s (%ldL)\n",
+	     table_name, table_number);
+    /* compatibility... */
+    fprintf (hfile, "\n/* for compatibility with older versions... */\n");
+    fprintf (hfile, "#define init_%s_err_tbl initialize_%s_error_table\n",
+	     table_name, table_name);
+    fprintf (hfile, "#define %s_err_base ERROR_TABLE_BASE_%s\n", table_name,
+	     table_name);
+    fclose(hfile);		/* bye bye include file */
+
+    return 0;
+}
+
+int yyerror(s) char *s; {
+    fputs(s, stderr);
+#ifdef NO_YYLINENO
+    fprintf(stderr, "\nLast token was '%s'\n", current_token);
+#else
+    fprintf(stderr, "\nLine number %d; last token was '%s'\n",
+	    yylineno, current_token);
+#endif
+}
+
+#ifdef NEED_STRCASECMP
+/* Need strcasecmp for this machine */
+/*
+ * Copyright (c) 1987 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+/* based on @(#)strcasecmp.c	1.3 (Berkeley) 8/3/87 */
+
+/*
+ * This array is designed for mapping upper and lower case letter
+ * together for a case independent comparison.  The mappings are
+ * based upon ascii character sequences.
+ */
+static char charmap[] = {
+	'\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
+	'\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
+	'\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
+	'\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
+	'\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
+	'\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
+	'\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
+	'\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
+	'\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
+	'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
+	'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
+	'\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
+	'\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
+	'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
+	'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
+	'\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
+	'\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
+	'\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
+	'\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
+	'\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
+	'\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
+	'\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
+	'\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
+	'\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
+	'\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
+	'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
+	'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
+	'\370', '\371', '\372', '\333', '\334', '\335', '\336', '\337',
+	'\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
+	'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
+	'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
+	'\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
+};
+
+strcasecmp(s1, s2)
+	register char *s1, *s2;
+{
+	register char *cm = charmap;
+
+	while (cm[*s1] == cm[*s2++])
+		if (*s1++ == '\0')
+			return(0);
+	return(cm[*s1] - cm[*--s2]);
+}
+
+#endif
diff --git a/util/et/compiler.h b/util/et/compiler.h
new file mode 100644
index 0000000..3e23f12
--- /dev/null
+++ b/util/et/compiler.h
@@ -0,0 +1,14 @@
+/*
+ * definitions common to the source files of the error table compiler
+ */
+
+enum lang {
+    lang_C,			/* ANSI C (default) */
+    lang_KRC,			/* C: ANSI + K&R */
+    lang_CPP			/* C++ */
+};
+
+int debug;			/* dump debugging info? */
+char *filename;			/* error table source */
+enum lang language;
+const char *whoami;
diff --git a/util/et/init_et.c b/util/et/init_et.c
new file mode 100644
index 0000000..f52faca
--- /dev/null
+++ b/util/et/init_et.c
@@ -0,0 +1,44 @@
+/*
+ * util/et/init_et.c
+ *
+ * Copyright 1986, 1987, 1988 by MIT Information Systems and
+ *	the MIT Student Information Processing Board.
+ *
+ * For copyright info, see mit-sipb-copyright.h.
+ */
+
+#include <stdio.h>
+#include "error_table.h"
+#include "mit-sipb-copyright.h"
+
+extern char *malloc(), *realloc();
+
+struct foobar {
+    struct et_list etl;
+    struct error_table et;
+};
+
+extern struct et_list * _et_list;
+
+int init_error_table(msgs, base, count)
+    const char * const * msgs;
+    int base;
+    int count;
+{
+    struct foobar * new_et;
+
+    if (!base || !count || !msgs)
+	return 0;
+
+    new_et = (struct foobar *) malloc(sizeof(struct foobar));
+    if (!new_et)
+	return errno;	/* oops */
+    new_et->etl.table = &new_et->et;
+    new_et->et.msgs = msgs;
+    new_et->et.base = base;
+    new_et->et.n_msgs= count;
+
+    new_et->etl.next = _et_list;
+    _et_list = &new_et->etl;
+    return 0;
+}
diff --git a/util/et/internal.h b/util/et/internal.h
new file mode 100644
index 0000000..a101f26
--- /dev/null
+++ b/util/et/internal.h
@@ -0,0 +1,15 @@
+/*
+ * internal include file for com_err package
+ */
+#include "mit-sipb-copyright.h"
+
+#include <errno.h>
+
+#ifdef NEED_SYS_ERRLIST
+extern char const * const sys_errlist[];
+extern const int sys_nerr;
+#endif
+
+#if defined(__STDC__) && !defined(HDR_HAS_PERROR)
+void perror (const char *);
+#endif