--- /dev/null
+/* -*- C -*-
+ * rpcgen - Generate XDR bindings automatically.
+ * Copyright (C) 2008 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "rpcgen_int.h"
+
+static void print_version (void);
+static void usage (const char *progname);
+static void do_rpcgen (const char *filename);
+static char *make_cpp_command (const char *filename);
+
+/* Symbols exported from the scanner. */
+extern FILE *yyin, *yyout;
+extern int yyparse (void);
+extern int yylineno;
+extern int yydebug;
+
+int
+main (int argc, char *argv[])
+{
+ int opt;
+
+ /* To enable debugging in the parser, you also need to compile
+ * with -DYYDEBUG
+ */
+#if 0
+ yydebug = 1;
+#endif
+
+ /* Note on command line arguments: We only support a small subset
+ * of command line arguments, because of the reduced functionality
+ * available in this version of rpcgen. However we accept the
+ * command line parameters from both GNU rpcgen and BSD rpcgen
+ * and print appropriate errors for any we don't understand.
+ */
+ while ((opt = getopt (argc, argv, "AD:IK:LMSTVchlmno:s:t")) != -1) {
+ switch (opt)
+ {
+ /*-- Options supported by any rpcgen that we don't support. --*/
+ case 'D': case 'T': case 'K': case 'l': case 'm': case 't':
+ case 's':
+ error ("option '%c' is not supported by this PortableXDR rpcgen.\nYou may need to use an alternative rpcgen program instead.", opt);
+
+ /*-- Options supported only by GNU rpcgen that we don't support. --*/
+ case 'I': case 'n':
+ error ("option '%c' is not supported by this PortableXDR rpcgen.\nIf you were expecting to use GNU rpcgen, try /usr/bin/rpcgen on a GNU host.", opt);
+
+ /*-- Options supported only by BSD rpcgen that we don't support. --*/
+ case 'A': case 'M': case 'L': case 'S':
+ error ("option '%c' is not supported by this PortableXDR rpcgen.\nIf you were expecting to use BSD rpcgen, try /usr/bin/rpcgen on a BSD host.", opt);
+
+ /*-- Options that we do support. --*/
+ case 'c':
+ case 'h':
+ case 'o':
+ ;
+
+ /* None of the other versions of rpcgen support a way to print
+ * the version number, which is extremely annoying because
+ * there are so many different variations of rpcgen around.
+ * So this option at least should be useful!
+ */
+ case 'V':
+ print_version ();
+ exit (0);
+
+ /*-- Usage case. --*/
+ default:
+ usage (argv[0]);
+ exit (1);
+ }
+ }
+
+ if (optind >= argc)
+ error ("expected name of input file after options");
+
+ while (optind < argc)
+ do_rpcgen (argv[optind++]);
+
+ exit (0);
+}
+
+static void
+print_version (void)
+{
+ printf ("PortableXDR rpcgen %s\n", PACKAGE_VERSION);
+}
+
+static void
+usage (const char *progname)
+{
+ print_version ();
+ printf
+ ("Generate XDR bindings automatically.\n"
+ "\n"
+ "Usage:\n"
+ " portable-rpcgen infile.x\n"
+ " portable-rpcgen -c|-h [-o outfile] infile.x\n"
+ " portable-rpcgen -V\n"
+ "\n"
+ "Options:\n"
+ " -c Generate C output file only.\n"
+ " -h Generate header output file only.\n"
+ " -o Name of output file (normally it is 'infile.[ch]').\n"
+ " -V Print the version and exit.\n"
+ "\n"
+ "In the first form, without -c or -h, we generate both output files.\n"
+ "\n"
+ "You can also list more than one input file on the command line, in\n"
+ "which case each input file is processed separately.\n"
+ "\n"
+ );
+ exit (0);
+}
+
+/* Called for each input file. */
+static void
+do_rpcgen (const char *filename)
+{
+ char *cmd;
+ int r;
+
+ free (input_filename);
+ input_filename = NULL;
+
+ cmd = make_cpp_command (filename);
+
+ yyin = popen (cmd, "r");
+ if (yyin == NULL)
+ perrorf ("%s", cmd);
+ free (cmd);
+
+ yyout = stdout;
+
+ /* Parse the input file. This either succeeds or exits with an error. */
+ r = yyparse ();
+ pclose (yyin);
+
+ if (r == 1)
+ error ("parsing failed, file is not a valid rpcgen input");
+ else if (r == 2)
+ error ("parsing failed because we ran out of memory");
+
+ free (input_filename);
+ input_filename = NULL;
+}
+
+/* Concatenate $EXTCPP and filename, and make sure the filename is
+ * quoted correctly. Tedious.
+ */
+static char *
+make_cpp_command (const char *filename)
+{
+ static const char good[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-.";
+#define is_good(c) (strchr (good, (c)) != NULL)
+ const char *p;
+
+ /* We can use start_string etc. because this function is only used
+ * outside the scanner.
+ */
+ start_string ();
+ add_string (EXTCPP);
+ add_char (' ');
+
+ for (p = filename; *p; p++) {
+ if (is_good (*p)) add_char (*p);
+ else {
+ add_char ('\\');
+ add_char (*p);
+ }
+ }
+
+ return end_string ();
+}
+
+/* Some fairly random functions which are used by the scanner for
+ * constructing strings, reporting errors, etc.
+ */
+
+/* The scanner sets this to the name of the input file (from cpp)
+ * if known.
+ */
+char *input_filename = NULL;
+
+static char *str = NULL;
+static int str_used, str_alloc;
+
+void
+start_string (void)
+{
+ if (str != NULL)
+ error ("scanner called start_string without calling end_string");
+
+ str_alloc = 128;
+ str_used = 0;
+ str = malloc (str_alloc);
+ if (!str) perrorf ("malloc");
+}
+
+char *
+end_string (void)
+{
+ char *s;
+
+ if (str == NULL)
+ error ("scanner called end_string without calling start_string");
+
+ s = realloc (str, str_used+1);
+ if (!s) perrorf ("realloc");
+
+ str = NULL;
+ s[str_used] = '\0';
+ return s;
+}
+
+void
+add_char (int c)
+{
+ str_used++;
+ while (str_used >= str_alloc) {
+ str_alloc <<= 1;
+ str = realloc (str, str_alloc);
+ if (!str) perrorf ("realloc");
+ }
+ str[str_used-1] = c;
+}
+
+void
+add_string (const char *s)
+{
+ int i = str_used;
+ int len = strlen (s);
+
+ str_used += len;
+ while (str_used >= str_alloc) {
+ str_alloc <<= 1;
+ str = realloc (str, str_alloc);
+ if (!str) perrorf ("realloc");
+ }
+ memcpy (str+i, s, len);
+}
+
+void
+error (const char *fs, ...)
+{
+ va_list arg;
+
+ if (input_filename == NULL)
+ fputs (PACKAGE, stderr);
+ else
+ fprintf (stderr, "%s:%d", input_filename, yylineno);
+ fputs (": ", stderr);
+
+ va_start (arg, fs);
+ vfprintf (stderr, fs, arg);
+ va_end (arg);
+
+ fputc ('\n', stderr);
+
+ exit (1);
+}
+
+void
+perrorf (const char *fs, ...)
+{
+ va_list arg;
+ int e = errno;
+
+ if (input_filename == NULL)
+ fputs (PACKAGE, stderr);
+ else
+ fprintf (stderr, "%s:%d", input_filename, yylineno);
+ fputs (": ", stderr);
+
+ va_start (arg, fs);
+ vfprintf (stderr, fs, arg);
+ va_end (arg);
+
+ fputs (": ", stderr);
+ errno = e;
+ perror (NULL);
+
+ exit (1);
+}
git.annexia.org / portablexdr.git / blobdiff