Initial revision

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@2610 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 234 insertions, 0 deletions

diff --git a/src/util/et/error_table.y b/src/util/et/error_table.y
new file mode 100644
index 000000000..b65532d8f
--- /dev/null
+++ b/src/util/et/error_table.y
@@ -0,0 +1,234 @@
+%{
+#include <stdio.h>
+char *str_concat(), *ds(), *quote();
+#ifndef __STDC__
+char *malloc(), *realloc();  
+#endif
+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 1986, 1987 by the MIT Student Information Processing Board
+ *
+ * For copyright info, see mit-sipb-copyright.h.
+ */
+
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include "internal.h"
+#include "error_table.h"
+#include "mit-sipb-copyright.h"
+
+#ifndef	lint
+static char const rcsid_error_table_y[] =
+    "$Header$";
+#endif
+
+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 = malloc(32 * sizeof(char));
+	gensym_n++;
+	sprintf(symbol, "et%ld", gensym_n);
+	return(symbol);
+}
+
+char *
+ds(string)
+	char const *string;
+{
+	char *rv;
+	rv = malloc(strlen(string)+1);
+	strcpy(rv, string);
+	return(rv);
+}
+
+char *
+quote(string)
+	char const *string;
+{
+	char *rv;
+	rv = 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;
+}
+
+#include "et_lex.lex.c"