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authorWaldemar Brodkorb <wbx@openadk.org>2015-12-06 10:24:52 +0100
committerWaldemar Brodkorb <wbx@openadk.org>2015-12-06 10:25:35 +0100
commitbe49c58d77ce855f902728b0c68fc10bafee6257 (patch)
treeed0c6965ec9ce26d0257cfa6514ce60ed9b74d95 /package/libtirpc/src/rpcgen/rpc_scan.c
parent97643b0bf020cced1ba9c66e74604800b74a7b34 (diff)
libtirpc: update to latest stable version
Diffstat (limited to 'package/libtirpc/src/rpcgen/rpc_scan.c')
-rw-r--r--package/libtirpc/src/rpcgen/rpc_scan.c474
1 files changed, 474 insertions, 0 deletions
diff --git a/package/libtirpc/src/rpcgen/rpc_scan.c b/package/libtirpc/src/rpcgen/rpc_scan.c
new file mode 100644
index 000000000..f58fa9f39
--- /dev/null
+++ b/package/libtirpc/src/rpcgen/rpc_scan.c
@@ -0,0 +1,474 @@
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - 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.
+ * - Neither the name of Sun Microsystems, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
+ */
+
+#if 0
+static char sccsid[] = "@(#)rpc_scan.c 1.11 89/02/22 (C) 1987 SMI";
+#endif
+
+/*
+ * rpc_scan.c, Scanner for the RPC protocol compiler
+ * Copyright (C) 1987, Sun Microsystems, Inc.
+ */
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include "rpc_scan.h"
+#include "rpc_parse.h"
+#include "rpc_util.h"
+
+static void unget_token(token *tokp);
+static void findstrconst(char **str, char **val);
+static void findchrconst(char **str, char **val);
+static void findconst(char **str, char **val);
+static void findkind(char **mark, token *tokp);
+static int cppline(char *line);
+static int directive(char *line);
+static void printdirective(char *line);
+static void docppline(char *line, int *lineno, char **fname);
+
+#define startcomment(where) (where[0] == '/' && where[1] == '*')
+#define endcomment(where) (where[-1] == '*' && where[0] == '/')
+
+static int pushed = 0; /* is a token pushed */
+static token lasttok; /* last token, if pushed */
+
+/*
+ * scan expecting 1 given token
+ */
+void
+scan(tok_kind expect, token *tokp)
+{
+ get_token(tokp);
+ if (tokp->kind != expect) {
+ expected1(expect);
+ }
+}
+
+/*
+ * scan expecting any of the 2 given tokens
+ */
+void
+scan2(tok_kind expect1, tok_kind expect2, token *tokp)
+{
+ get_token(tokp);
+ if (tokp->kind != expect1 && tokp->kind != expect2) {
+ expected2(expect1, expect2);
+ }
+}
+
+/*
+ * scan expecting any of the 3 given token
+ */
+void
+scan3(tok_kind expect1, tok_kind expect2, tok_kind expect3, token *tokp)
+{
+ get_token(tokp);
+ if (tokp->kind != expect1 && tokp->kind != expect2
+ && tokp->kind != expect3) {
+ expected3(expect1, expect2, expect3);
+ }
+}
+
+/*
+ * scan expecting a constant, possibly symbolic
+ */
+void
+scan_num(token *tokp)
+{
+ get_token(tokp);
+ switch (tokp->kind) {
+ case TOK_IDENT:
+ break;
+ default:
+ error("constant or identifier expected");
+ }
+}
+
+/*
+ * Peek at the next token
+ */
+void
+peek(token *tokp)
+{
+ get_token(tokp);
+ unget_token(tokp);
+}
+
+/*
+ * Peek at the next token and scan it if it matches what you expect
+ */
+int
+peekscan(tok_kind expect, token *tokp)
+{
+ peek(tokp);
+ if (tokp->kind == expect) {
+ get_token(tokp);
+ return (1);
+ }
+ return (0);
+}
+
+/*
+ * Get the next token, printing out any directive that are encountered.
+ */
+void
+get_token(token *tokp)
+{
+ int commenting;
+
+ if (pushed) {
+ pushed = 0;
+ *tokp = lasttok;
+ return;
+ }
+ commenting = 0;
+ for (;;) {
+ if (*where == 0) {
+ for (;;) {
+ if (!fgets(curline, MAXLINESIZE, fin)) {
+ tokp->kind = TOK_EOF;
+ *where = 0;
+ return;
+ }
+ linenum++;
+ if (commenting) {
+ break;
+ } else if (cppline(curline)) {
+ docppline(curline, &linenum,
+ &infilename);
+ } else if (directive(curline)) {
+ printdirective(curline);
+ } else {
+ break;
+ }
+ }
+ where = curline;
+ } else if (isspace(*where)) {
+ while (isspace(*where)) {
+ where++; /* eat */
+ }
+ } else if (commenting) {
+ for (where++; *where; where++) {
+ if (endcomment(where)) {
+ where++;
+ commenting--;
+ break;
+ }
+ }
+ } else if (startcomment(where)) {
+ where += 2;
+ commenting++;
+ } else {
+ break;
+ }
+ }
+
+ /*
+ * 'where' is not whitespace, comment or directive Must be a token!
+ */
+ switch (*where) {
+ case ':':
+ tokp->kind = TOK_COLON;
+ where++;
+ break;
+ case ';':
+ tokp->kind = TOK_SEMICOLON;
+ where++;
+ break;
+ case ',':
+ tokp->kind = TOK_COMMA;
+ where++;
+ break;
+ case '=':
+ tokp->kind = TOK_EQUAL;
+ where++;
+ break;
+ case '*':
+ tokp->kind = TOK_STAR;
+ where++;
+ break;
+ case '[':
+ tokp->kind = TOK_LBRACKET;
+ where++;
+ break;
+ case ']':
+ tokp->kind = TOK_RBRACKET;
+ where++;
+ break;
+ case '{':
+ tokp->kind = TOK_LBRACE;
+ where++;
+ break;
+ case '}':
+ tokp->kind = TOK_RBRACE;
+ where++;
+ break;
+ case '(':
+ tokp->kind = TOK_LPAREN;
+ where++;
+ break;
+ case ')':
+ tokp->kind = TOK_RPAREN;
+ where++;
+ break;
+ case '<':
+ tokp->kind = TOK_LANGLE;
+ where++;
+ break;
+ case '>':
+ tokp->kind = TOK_RANGLE;
+ where++;
+ break;
+
+ case '"':
+ tokp->kind = TOK_STRCONST;
+ findstrconst(&where, &tokp->str);
+ break;
+ case '\'':
+ tokp->kind = TOK_CHARCONST;
+ findchrconst(&where, &tokp->str);
+ break;
+
+ case '-':
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ tokp->kind = TOK_IDENT;
+ findconst(&where, &tokp->str);
+ break;
+
+ default:
+ if (!(isalpha(*where) || *where == '_')) {
+ char buf[100];
+ char *p;
+
+ s_print(buf, "illegal character in file: ");
+ p = buf + strlen(buf);
+ if (isprint(*where)) {
+ s_print(p, "%c", *where);
+ } else {
+ s_print(p, "%d", *where);
+ }
+ error(buf);
+ }
+ findkind(&where, tokp);
+ break;
+ }
+}
+
+static void
+unget_token(token *tokp)
+{
+ lasttok = *tokp;
+ pushed = 1;
+}
+
+static void
+findstrconst(char **str, char **val)
+{
+ char *p;
+ int size;
+
+ p = *str;
+ do {
+ *p++;
+ } while (*p && *p != '"');
+ if (*p == 0) {
+ error("unterminated string constant");
+ }
+ p++;
+ size = p - *str;
+ *val = alloc(size + 1);
+ (void) strncpy(*val, *str, size);
+ (*val)[size] = 0;
+ *str = p;
+}
+
+static void
+findchrconst(char **str, char **val)
+{
+ char *p;
+ int size;
+
+ p = *str;
+ do {
+ *p++;
+ } while (*p && *p != '\'');
+ if (*p == 0) {
+ error("unterminated string constant");
+ }
+ p++;
+ size = p - *str;
+ if (size != 3) {
+ error("empty char string");
+ }
+ *val = alloc(size + 1);
+ (void) strncpy(*val, *str, size);
+ (*val)[size] = 0;
+ *str = p;
+}
+
+static void
+findconst(char **str, char **val)
+{
+ char *p;
+ int size;
+
+ p = *str;
+ if (*p == '0' && *(p + 1) == 'x') {
+ p++;
+ do {
+ p++;
+ } while (isxdigit(*p));
+ } else {
+ do {
+ p++;
+ } while (isdigit(*p));
+ }
+ size = p - *str;
+ *val = alloc(size + 1);
+ (void) strncpy(*val, *str, size);
+ (*val)[size] = 0;
+ *str = p;
+}
+
+static token symbols[] = {
+ {TOK_CONST, "const"},
+ {TOK_UNION, "union"},
+ {TOK_SWITCH, "switch"},
+ {TOK_CASE, "case"},
+ {TOK_DEFAULT, "default"},
+ {TOK_STRUCT, "struct"},
+ {TOK_TYPEDEF, "typedef"},
+ {TOK_ENUM, "enum"},
+ {TOK_OPAQUE, "opaque"},
+ {TOK_BOOL, "bool"},
+ {TOK_VOID, "void"},
+ {TOK_CHAR, "char"},
+ {TOK_INT, "int"},
+ {TOK_UNSIGNED, "unsigned"},
+ {TOK_SHORT, "short"},
+ {TOK_INT32, "int32"},
+ {TOK_FLOAT, "float"},
+ {TOK_DOUBLE, "double"},
+ {TOK_STRING, "string"},
+ {TOK_PROGRAM, "program"},
+ {TOK_VERSION, "version"},
+ {TOK_EOF, "??????"},
+};
+
+static void
+findkind(char **mark, token *tokp)
+{
+ int len;
+ token *s;
+ char *str;
+
+ str = *mark;
+ for (s = symbols; s->kind != TOK_EOF; s++) {
+ len = strlen(s->str);
+ if (strncmp(str, s->str, len) == 0) {
+ if (!isalnum(str[len]) && str[len] != '_') {
+ tokp->kind = s->kind;
+ tokp->str = s->str;
+ *mark = str + len;
+ return;
+ }
+ }
+ }
+ tokp->kind = TOK_IDENT;
+ for (len = 0; isalnum(str[len]) || str[len] == '_'; len++);
+ tokp->str = alloc(len + 1);
+ (void) strncpy(tokp->str, str, len);
+ tokp->str[len] = 0;
+ *mark = str + len;
+}
+
+static int
+cppline(char *line)
+{
+ return (line == curline && *line == '#');
+}
+
+static int
+directive(char *line)
+{
+ return (line == curline && *line == '%');
+}
+
+static void
+printdirective(char *line)
+{
+ f_print(fout, "%s", line + 1);
+}
+
+static void
+docppline(char *line, int *lineno, char **fname)
+{
+ char *file;
+ int num;
+ char *p;
+
+ line++;
+ while (isspace(*line)) {
+ line++;
+ }
+ num = atoi(line);
+ while (isdigit(*line)) {
+ line++;
+ }
+ while (isspace(*line)) {
+ line++;
+ }
+ if (*line != '"') {
+ error("preprocessor error");
+ }
+ line++;
+ p = file = alloc(strlen(line) + 1);
+ while (*line && *line != '"') {
+ *p++ = *line++;
+ }
+ if (*line == 0) {
+ error("preprocessor error");
+ }
+ *p = 0;
+ if (*file == 0) {
+ *fname = NULL;
+ free(file);
+ } else {
+ *fname = file;
+ }
+ *lineno = num - 1;
+}