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authorThorsten Lockert <tholo@cvs.openbsd.org>1995-12-14 06:52:55 +0000
committerThorsten Lockert <tholo@cvs.openbsd.org>1995-12-14 06:52:55 +0000
commit8cf1f2a33575f93a2a1411591dea02dadfff25a0 (patch)
tree546551ebd40f0dfbbb6016a6028d467641b4ed8b /kerberosIV/compile_et/error_table.y
parent02a248da23b192dd04bdb0fe2d61202086e9ceb3 (diff)
Kerberos IV code, based on a merge of fixed code from KTH and original
4.4BSD Lite code (international edition). Provides all functionality from the original 4.4BSD code plus standard Kerberos elements that were omitted in the 4.4BSD code.
Diffstat (limited to 'kerberosIV/compile_et/error_table.y')
-rw-r--r--kerberosIV/compile_et/error_table.y260
1 files changed, 260 insertions, 0 deletions
diff --git a/kerberosIV/compile_et/error_table.y b/kerberosIV/compile_et/error_table.y
new file mode 100644
index 00000000000..cbe051f7bad
--- /dev/null
+++ b/kerberosIV/compile_et/error_table.y
@@ -0,0 +1,260 @@
+%{
+/* $Id: error_table.y,v 1.1 1995/12/14 06:52:49 tholo Exp $ */
+
+/*-
+ * Copyright 1987, 1988 by the Student Information Processing Board
+ * of the Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * and its documentation for any purpose and without fee is
+ * hereby granted, provided that the above copyright notice
+ * appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation,
+ * and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
+ * used in advertising or publicity pertaining to distribution
+ * of the software without specific, written prior permission.
+ * M.I.T. and the M.I.T. S.I.P.B. make no representations about
+ * the suitability of this software for any purpose. It is
+ * provided "as is" without express or implied warranty.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+char *str_concat(), *ds(), *quote();
+char *current_token = (char *)NULL;
+extern char *table_name;
+%}
+%union {
+ char *dynstr;
+}
+
+%token ERROR_TABLE ERROR_CODE_ENTRY END
+%token <dynstr> STRING QUOTED_STRING
+%type <dynstr> ec_name description table_id
+%{
+%}
+%start error_table
+%%
+
+error_table : ERROR_TABLE table_id error_codes END
+ { table_name = ds($2);
+ current_token = table_name;
+ put_ecs(); }
+ ;
+
+table_id : STRING
+ { current_token = $1;
+ set_table_num($1);
+ $$ = $1; }
+ ;
+
+error_codes : error_codes ec_entry
+ | ec_entry
+ ;
+
+ec_entry : ERROR_CODE_ENTRY ec_name ',' description
+ { add_ec($2, $4);
+ free($2);
+ free($4); }
+ | ERROR_CODE_ENTRY ec_name '=' STRING ',' description
+ { add_ec_val($2, $4, $6);
+ free($2);
+ free($4);
+ free($6);
+ }
+ ;
+
+ec_name : STRING
+ { $$ = ds($1);
+ current_token = $$; }
+ ;
+
+description : QUOTED_STRING
+ { $$ = ds($1);
+ current_token = $$; }
+ ;
+
+%%
+/*
+ * Copyright 1987, 1988 by the Student Information Processing Board
+ * of the Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * and its documentation for any purpose and without fee is
+ * hereby granted, provided that the above copyright notice
+ * appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation,
+ * and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
+ * used in advertising or publicity pertaining to distribution
+ * of the software without specific, written prior permission.
+ * M.I.T. and the M.I.T. S.I.P.B. make no representations about
+ * the suitability of this software for any purpose. It is
+ * provided "as is" without express or implied warranty.
+ */
+
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include "error_table.h"
+
+#ifndef lint
+static char const rcsid_error_table_y[] =
+ "$Id: error_table.y,v 1.1 1995/12/14 06:52:49 tholo Exp $";
+#endif
+
+#include "et_lex.lex.c"
+
+extern FILE *hfile, *cfile;
+
+static long gensym_n = 0;
+char *
+gensym(x)
+ char const *x;
+{
+ char *symbol;
+ if (!gensym_n) {
+ struct timeval tv;
+ struct timezone tzp;
+ gettimeofday(&tv, &tzp);
+ gensym_n = (tv.tv_sec%10000)*100 + tv.tv_usec/10000;
+ }
+ symbol = (char *)malloc(32 * sizeof(char));
+ gensym_n++;
+ sprintf(symbol, "et%ld", gensym_n);
+ return(symbol);
+}
+
+char *
+ds(string)
+ char const *string;
+{
+ char *rv;
+ rv = (char *)malloc(strlen(string)+1);
+ strcpy(rv, string);
+ return(rv);
+}
+
+char *
+quote(string)
+ char const *string;
+{
+ char *rv;
+ rv = (char *)malloc(strlen(string)+3);
+ strcpy(rv, "\"");
+ strcat(rv, string);
+ strcat(rv, "\"");
+ return(rv);
+}
+
+long table_number;
+int current = 0;
+char **error_codes = (char **)NULL;
+
+add_ec(name, description)
+ char const *name, *description;
+{
+ fprintf(cfile, "\t\"%s\",\n", description);
+ if (error_codes == (char **)NULL) {
+ error_codes = (char **)malloc(sizeof(char *));
+ *error_codes = (char *)NULL;
+ }
+ error_codes = (char **)realloc((char *)error_codes,
+ (current + 2)*sizeof(char *));
+ error_codes[current++] = ds(name);
+ error_codes[current] = (char *)NULL;
+}
+
+add_ec_val(name, val, description)
+ char const *name, *val, *description;
+{
+ const int ncurrent = atoi(val);
+ if (ncurrent < current) {
+ printf("Error code %s (%d) out of order", name,
+ current);
+ return;
+ }
+
+ while (ncurrent > current)
+ fputs("\t(char *)NULL,\n", cfile), current++;
+
+ fprintf(cfile, "\t\"%s\",\n", description);
+ if (error_codes == (char **)NULL) {
+ error_codes = (char **)malloc(sizeof(char *));
+ *error_codes = (char *)NULL;
+ }
+ error_codes = (char **)realloc((char *)error_codes,
+ (current + 2)*sizeof(char *));
+ error_codes[current++] = ds(name);
+ error_codes[current] = (char *)NULL;
+}
+
+put_ecs()
+{
+ int i;
+ for (i = 0; i < current; i++) {
+ if (error_codes[i] != (char *)NULL)
+ fprintf(hfile, "#define %-40s (%ldL)\n",
+ error_codes[i], table_number + i);
+ }
+}
+
+/*
+ * char_to_num -- maps letters and numbers into a small numbering space
+ * uppercase -> 1-26
+ * lowercase -> 27-52
+ * digits -> 53-62
+ * underscore-> 63
+ */
+
+static const char char_set[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
+
+int char_to_num(c)
+ char c;
+{
+ const char *where;
+ int diff;
+
+ where = strchr (char_set, c);
+ if (where) {
+ diff = where - char_set + 1;
+ assert (diff < (1 << ERRCODE_RANGE));
+ return diff;
+ }
+ else if (isprint (c))
+ fprintf (stderr,
+ "Illegal character `%c' in error table name\n",
+ c);
+ else
+ fprintf (stderr,
+ "Illegal character %03o in error table name\n",
+ c);
+ exit (1);
+}
+
+set_table_num(string)
+ char *string;
+{
+ if (char_to_num (string[0]) > char_to_num ('z')) {
+ fprintf (stderr, "%s%s%s%s",
+ "First character of error table name must be ",
+ "a letter; name ``",
+ string, "'' rejected\n");
+ exit (1);
+ }
+ if (strlen(string) > 4) {
+ fprintf(stderr, "Table name %s too long, truncated ",
+ string);
+ string[4] = '\0';
+ fprintf(stderr, "to %s\n", string);
+ }
+ while (*string != '\0') {
+ table_number = (table_number << BITS_PER_CHAR)
+ + char_to_num(*string);
+ string++;
+ }
+ table_number = table_number << ERRCODE_RANGE;
+}
+