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authorpeter <peter@FreeBSD.org>1996-09-18 05:35:50 +0000
committerpeter <peter@FreeBSD.org>1996-09-18 05:35:50 +0000
commitd4691e641ba47cb86eef80f5c879e13f9d961724 (patch)
tree5b7ea73fc49c8998d9dc87d3eeff5b96439e6856 /contrib/gcc/fix-header.c
downloadFreeBSD-src-d4691e641ba47cb86eef80f5c879e13f9d961724.zip
FreeBSD-src-d4691e641ba47cb86eef80f5c879e13f9d961724.tar.gz
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the
non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
Diffstat (limited to 'contrib/gcc/fix-header.c')
-rw-r--r--contrib/gcc/fix-header.c1202
1 files changed, 1202 insertions, 0 deletions
diff --git a/contrib/gcc/fix-header.c b/contrib/gcc/fix-header.c
new file mode 100644
index 0000000..53e5c06
--- /dev/null
+++ b/contrib/gcc/fix-header.c
@@ -0,0 +1,1202 @@
+/* fix-header.c - Make C header file suitable for C++.
+ Copyright (C) 1993, 1994, 1995 Free Software Foundation, 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, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* This program massages a system include file (such as stdio.h),
+ into a form more conforming with ANSI/POSIX, and more suitable for C++:
+
+ * extern "C" { ... } braces are added (inside #ifndef __cplusplus),
+ if they seem to be needed. These prevent C++ compilers from name
+ mangling the functions inside the braces.
+
+ * If an old-style incomplete function declaration is seen (without
+ an argument list), and it is a "standard" function listed in
+ the file sys-protos.h (and with a non-empty argument list), then
+ the declaration is converted to a complete prototype by replacing
+ the empty parameter list with the argument lust from sys-protos.h.
+
+ * The program can be given a list of (names of) required standard
+ functions (such as fclose for stdio.h). If a required function
+ is not seen in the input, then a prototype for it will be
+ written to the output.
+
+ * If all of the non-comment code of the original file is protected
+ against multiple inclusion:
+ #ifndef FOO
+ #define FOO
+ <body of include file>
+ #endif
+ then extra matter added to the include file is placed inside the <body>.
+
+ * If the input file is OK (nothing needs to be done);
+ the output file is not written (nor removed if it exists).
+
+ There are also some special actions that are done for certain
+ well-known standard include files:
+
+ * If argv[1] is "sys/stat.h", the Posix.1 macros
+ S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG are added if
+ they were missing, and the corresponding "traditional" S_IFxxx
+ macros were defined.
+
+ * If argv[1] is "errno.h", errno is declared if it was missing.
+
+ * TODO: The input file should be read complete into memory, because:
+ a) it needs to be scanned twice anyway, and
+ b) it would be nice to allow update in place.
+
+ Usage:
+ fix-header FOO.H INFILE.H OUTFILE.H [OPTIONS]
+ where:
+ * FOO.H is the relative file name of the include file,
+ as it would be #include'd by a C file. (E.g. stdio.h)
+ * INFILE.H is a full pathname for the input file (e.g. /usr/include/stdio.h)
+ * OUTFILE.H is the full pathname for where to write the output file,
+ if anything needs to be done. (e.g. ./include/stdio.h)
+ * OPTIONS are such as you would pass to cpp.
+
+ Written by Per Bothner <bothner@cygnus.com>, July 1993. */
+
+#include <stdio.h>
+#include <ctype.h>
+#include "hconfig.h"
+#include "obstack.h"
+#include "scan.h"
+#include "cpplib.h"
+#ifndef O_RDONLY
+#define O_RDONLY 0
+#endif
+
+#if !__STDC__
+#define const /* nothing */
+#endif
+
+sstring buf;
+
+int verbose = 0;
+int partial_count = 0;
+int warnings = 0;
+
+/* We no longer need to add extern "C", because cpp implicitly
+ forces the standard include files to be treated as C. */
+/*#define ADD_MISSING_EXTERN_C 1 */
+
+#if ADD_MISSING_EXTERN_C
+int missing_extern_C_count = 0;
+#endif
+int missing_errno = 0;
+
+#include "xsys-protos.h"
+
+#ifdef FIXPROTO_IGNORE_LIST
+/* This is a currently unused feature. */
+
+/* List of files and directories to ignore.
+ A directory name (ending in '/') means ignore anything in that
+ directory. (It might be more efficient to do directory pruning
+ earlier in fixproto, but this is simpler and easier to customize.) */
+
+static char *files_to_ignore[] = {
+ "X11/",
+ FIXPROTO_IGNORE_LIST
+ 0
+};
+#endif
+
+char *inf_buffer;
+char *inf_limit;
+char *inf_ptr;
+
+/* Certain standard files get extra treatment */
+
+enum special_file
+{
+ no_special,
+ errno_h,
+ stdio_h,
+ sys_stat_h
+};
+
+/* A NAMELIST is a sequence of names, separated by '\0', and terminated
+ by an empty name (i.e. by "\0\0"). */
+
+typedef const char* namelist;
+
+struct std_include_entry {
+ const char *name;
+ namelist required;
+ namelist extra;
+ int special;
+};
+
+/* End of namelist NAMES. */
+
+namelist
+namelist_end (names)
+ namelist names;
+{
+ register namelist ptr;
+ for (ptr = names; ; ptr++)
+ {
+ if (*ptr == '\0')
+ {
+ ptr++;
+ if (*ptr == '\0')
+ return ptr;
+ }
+ }
+}
+
+const char NONE[] = "";
+
+struct std_include_entry *include_entry;
+
+struct std_include_entry std_include_table [] = {
+ { "ctype.h",
+ "isalnum\0isalpha\0iscntrl\0isdigit\0isgraph\0islower\0\
+isprint\0ispunct\0isspace\0isupper\0isxdigit\0tolower\0toupper\0", NONE },
+
+ { "dirent.h", "closedir\0opendir\0readdir\0rewinddir\0", NONE},
+
+ { "errno.h", NONE, "errno\0" },
+
+ { "curses.h", "box\0delwin\0endwin\0getcurx\0getcury\0initscr\0\
+mvcur\0mvwprintw\0mvwscanw\0newwin\0overlay\0overwrite\0\
+scroll\0subwin\0touchwin\0waddstr\0wclear\0wclrtobot\0wclrtoeol\0\
+waddch\0wdelch\0wdeleteln\0werase\0wgetch\0wgetstr\0winsch\0winsertln\0\
+wmove\0wprintw\0wrefresh\0wscanw\0wstandend\0wstandout\0", NONE },
+
+ { "fcntl.h", "creat\0fcntl\0open\0", NONE },
+
+ /* Maybe also "getgrent fgetgrent setgrent endgrent" */
+ { "grp.h", "getgrgid\0getgrnam\0", NONE },
+
+/*{ "limit.h", ... provided by gcc }, */
+
+ { "locale.h", "localeconv\0setlocale\0", NONE },
+
+ { "math.h", "acos\0asin\0atan\0atan2\0ceil\0cos\0cosh\0exp\0\
+fabs\0floor\0fmod\0frexp\0ldexp\0log10\0log\0modf\0pow\0sin\0sinh\0sqrt\0\
+tan\0tanh\0", "HUGE_VAL\0" },
+
+ { "pwd.h", "getpwnam\0getpwuid\0", NONE },
+
+ /* Left out siglongjmp sigsetjmp - these depend on sigjmp_buf. */
+ { "setjmp.h", "longjmp\0setjmp\0", NONE },
+
+ /* Left out signal() - its prototype is too complex for us!
+ Also left out "sigaction sigaddset sigdelset sigemptyset
+ sigfillset sigismember sigpending sigprocmask sigsuspend"
+ because these need sigset_t or struct sigaction.
+ Most systems that provide them will also declare them. */
+ { "signal.h", "kill\0raise\0", NONE },
+
+ { "stdio.h", "clearerr\0fclose\0feof\0ferror\0fflush\0fgetc\0fgetpos\0\
+fgets\0fopen\0fprintf\0fputc\0fputs\0fread\0freopen\0fscanf\0fseek\0\
+fsetpos\0ftell\0fwrite\0getc\0getchar\0gets\0pclose\0perror\0popen\0\
+printf\0putc\0putchar\0puts\0remove\0rename\0rewind\0scanf\0setbuf\0\
+setvbuf\0sprintf\0sscanf\0vprintf\0vsprintf\0vfprintf\0tmpfile\0\
+tmpnam\0ungetc\0", NONE },
+/* Should perhaps also handle NULL, EOF, ... ? */
+
+ /* "div ldiv", - ignored because these depend on div_t, ldiv_t
+ ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
+ Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions.
+ Should perhaps also add NULL */
+ { "stdlib.h", "abort\0abs\0atexit\0atof\0atoi\0atol\0bsearch\0calloc\0\
+exit\0free\0getenv\0labs\0malloc\0putenv\0qsort\0rand\0realloc\0\
+srand\0strtod\0strtol\0strtoul\0system\0", NONE },
+
+ { "string.h", "memchr\0memcmp\0memcpy\0memmove\0memset\0\
+strcat\0strchr\0strcmp\0strcoll\0strcpy\0strcspn\0strerror\0\
+strlen\0strncat\0strncmp\0strncpy\0strpbrk\0strrchr\0strspn\0strstr\0\
+strtok\0strxfrm\0", NONE },
+/* Should perhaps also add NULL and size_t */
+
+ { "sys/stat.h", "chmod\0fstat\0mkdir\0mkfifo\0stat\0lstat\0umask\0",
+ "S_ISDIR\0S_ISBLK\0S_ISCHR\0S_ISFIFO\0S_ISREG\0S_ISLNK\0S_IFDIR\0\
+S_IFBLK\0S_IFCHR\0S_IFIFO\0S_IFREG\0S_IFLNK\0" },
+
+ { "sys/times.h", "times\0", NONE },
+ /* "sys/types.h" add types (not in old g++-include) */
+
+ { "sys/utsname.h", "uname\0", NONE },
+
+ { "sys/wait.h", "wait\0waitpid\0",
+ "WEXITSTATUS\0WIFEXITED\0WIFSIGNALED\0WIFSTOPPED\0WSTOPSIG\0\
+WTERMSIG\0WNOHANG\0WNOTRACED\0" },
+
+ { "tar.h", NONE, NONE },
+
+ { "termios.h", "cfgetispeed\0cfgetospeed\0cfsetispeed\0cfsetospeed\0tcdrain\0tcflow\0tcflush\0tcgetattr\0tcsendbreak\0tcsetattr\0", NONE },
+
+ { "time.h", "asctime\0clock\0ctime\0difftime\0gmtime\0localtime\0mktime\0strftime\0time\0tzset\0", NONE },
+
+ { "unistd.h", "_exit\0access\0alarm\0chdir\0chown\0close\0ctermid\0cuserid\0\
+dup\0dup2\0execl\0execle\0execlp\0execv\0execve\0execvp\0fork\0fpathconf\0\
+getcwd\0getegid\0geteuid\0getgid\0getlogin\0getopt\0getpgrp\0getpid\0\
+getppid\0getuid\0isatty\0link\0lseek\0pathconf\0pause\0pipe\0read\0rmdir\0\
+setgid\0setpgid\0setsid\0setuid\0sleep\0sysconf\0tcgetpgrp\0tcsetpgrp\0\
+ttyname\0unlink\0write\0", NONE },
+
+ { 0, NONE, NONE }
+};
+
+enum special_file special_file_handling = no_special;
+
+/* The following are only used when handling sys/stat.h */
+/* They are set if the corresponding macro has been seen. */
+int seen_S_IFBLK = 0, seen_S_ISBLK = 0;
+int seen_S_IFCHR = 0, seen_S_ISCHR = 0;
+int seen_S_IFDIR = 0, seen_S_ISDIR = 0;
+int seen_S_IFIFO = 0, seen_S_ISFIFO = 0;
+int seen_S_IFLNK = 0, seen_S_ISLNK = 0;
+int seen_S_IFREG = 0, seen_S_ISREG = 0;
+
+/* Wrapper around free, to avoid prototype clashes. */
+
+void
+xfree (ptr)
+ char *ptr;
+{
+ free (ptr);
+}
+
+/* Avoid error if config defines abort as fancy_abort.
+ It's not worth "really" implementing this because ordinary
+ compiler users never run fix-header. */
+
+void
+fancy_abort ()
+{
+ abort ();
+}
+
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free xfree
+struct obstack scan_file_obstack;
+
+/* NOTE: If you edit this, also edit gen-protos.c !! */
+struct fn_decl *
+lookup_std_proto (name, name_length)
+ const char *name;
+ int name_length;
+{
+ int i = hashf (name, name_length, HASH_SIZE);
+ int i0 = i;
+ for (;;)
+ {
+ struct fn_decl *fn;
+ if (hash_tab[i] == 0)
+ return NULL;
+ fn = &std_protos[hash_tab[i]];
+ if (strlen (fn->fname) == name_length
+ && strncmp (fn->fname, name, name_length) == 0)
+ return fn;
+ i = (i+1) % HASH_SIZE;
+ if (i == i0)
+ abort ();
+ }
+}
+
+char *inc_filename;
+int inc_filename_length;
+char *progname = "fix-header";
+FILE *outf;
+sstring line;
+
+int lbrac_line, rbrac_line;
+
+namelist required_functions_list;
+int required_unseen_count = 0;
+
+void
+write_lbrac ()
+{
+
+#if ADD_MISSING_EXTERN_C
+ if (missing_extern_C_count + required_unseen_count > 0)
+ fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
+#endif
+
+ if (partial_count)
+ {
+ fprintf (outf, "#ifndef _PARAMS\n");
+ fprintf (outf, "#if defined(__STDC__) || defined(__cplusplus)\n");
+ fprintf (outf, "#define _PARAMS(ARGS) ARGS\n");
+ fprintf (outf, "#else\n");
+ fprintf (outf, "#define _PARAMS(ARGS) ()\n");
+ fprintf (outf, "#endif\n#endif /* _PARAMS */\n");
+ }
+}
+
+struct partial_proto
+{
+ struct partial_proto *next;
+ char *fname; /* name of function */
+ char *rtype; /* return type */
+ struct fn_decl *fn;
+ int line_seen;
+};
+
+struct partial_proto *partial_proto_list = NULL;
+
+struct partial_proto required_dummy_proto, seen_dummy_proto;
+#define REQUIRED(FN) ((FN)->partial == &required_dummy_proto)
+#define SET_REQUIRED(FN) ((FN)->partial = &required_dummy_proto)
+#define SET_SEEN(FN) ((FN)->partial = &seen_dummy_proto)
+#define SEEN(FN) ((FN)->partial == &seen_dummy_proto)
+
+void
+recognized_macro (fname)
+ char *fname;
+{
+ /* The original include file defines fname as a macro. */
+ struct fn_decl *fn = lookup_std_proto (fname, strlen (fname));
+
+ /* Since fname is a macro, don't require a prototype for it. */
+ if (fn)
+ {
+ if (REQUIRED (fn))
+ required_unseen_count--;
+ SET_SEEN (fn);
+ }
+
+ switch (special_file_handling)
+ {
+ case errno_h:
+ if (strcmp (fname, "errno") == 0) missing_errno = 0;
+ break;
+ case sys_stat_h:
+ if (fname[0] == 'S' && fname[1] == '_')
+ {
+ if (strcmp (fname, "S_IFBLK") == 0) seen_S_IFBLK++;
+ else if (strcmp (fname, "S_ISBLK") == 0) seen_S_ISBLK++;
+ else if (strcmp (fname, "S_IFCHR") == 0) seen_S_IFCHR++;
+ else if (strcmp (fname, "S_ISCHR") == 0) seen_S_ISCHR++;
+ else if (strcmp (fname, "S_IFDIR") == 0) seen_S_IFDIR++;
+ else if (strcmp (fname, "S_ISDIR") == 0) seen_S_ISDIR++;
+ else if (strcmp (fname, "S_IFIFO") == 0) seen_S_IFIFO++;
+ else if (strcmp (fname, "S_ISFIFO") == 0) seen_S_ISFIFO++;
+ else if (strcmp (fname, "S_IFLNK") == 0) seen_S_IFLNK++;
+ else if (strcmp (fname, "S_ISLNK") == 0) seen_S_ISLNK++;
+ else if (strcmp (fname, "S_IFREG") == 0) seen_S_IFREG++;
+ else if (strcmp (fname, "S_ISREG") == 0) seen_S_ISREG++;
+ }
+ }
+}
+
+void
+recognized_extern (name, name_length, type, type_length)
+ char *name;
+ char *type;
+ int name_length, type_length;
+{
+ switch (special_file_handling)
+ {
+ case errno_h:
+ if (strncmp (name, "errno", name_length) == 0) missing_errno = 0;
+ break;
+ }
+}
+
+/* Called by scan_decls if it saw a function definition for a function
+ named FNAME, with return type RTYPE, and argument list ARGS,
+ in source file FILE_SEEN on line LINE_SEEN.
+ KIND is 'I' for an inline function;
+ 'F' if a normal function declaration preceded by 'extern "C"'
+ (or nested inside 'extern "C"' braces); or
+ 'f' for other function declarations. */
+
+void
+recognized_function (fname, fname_length,
+ kind, rtype, rtype_length,
+ have_arg_list, file_seen, line_seen)
+ char *fname;
+ int fname_length;
+ int kind; /* One of 'f' 'F' or 'I' */
+ char *rtype;
+ int rtype_length;
+ int have_arg_list;
+ char *file_seen;
+ int line_seen;
+{
+ struct partial_proto *partial;
+ int i;
+ struct fn_decl *fn;
+#if ADD_MISSING_EXTERN_C
+ if (kind == 'f')
+ missing_extern_C_count++;
+#endif
+
+ fn = lookup_std_proto (fname, fname_length);
+
+ /* Remove the function from the list of required function. */
+ if (fn)
+ {
+ if (REQUIRED (fn))
+ required_unseen_count--;
+ SET_SEEN (fn);
+ }
+
+ /* If we have a full prototype, we're done. */
+ if (have_arg_list)
+ return;
+
+ if (kind == 'I') /* don't edit inline function */
+ return;
+
+ /* If the partial prototype was included from some other file,
+ we don't need to patch it up (in this run). */
+ i = strlen (file_seen);
+ if (i < inc_filename_length
+ || strcmp (inc_filename, file_seen + (i - inc_filename_length)) != 0)
+ return;
+
+ if (fn == NULL)
+ return;
+ if (fn->params[0] == '\0' || strcmp (fn->params, "void") == 0)
+ return;
+
+ /* We only have a partial function declaration,
+ so remember that we have to add a complete prototype. */
+ partial_count++;
+ partial = (struct partial_proto*)
+ obstack_alloc (&scan_file_obstack, sizeof (struct partial_proto));
+ partial->fname = obstack_alloc (&scan_file_obstack, fname_length + 1);
+ bcopy (fname, partial->fname, fname_length);
+ partial->fname[fname_length] = 0;
+ partial->rtype = obstack_alloc (&scan_file_obstack, rtype_length + 1);
+ sprintf (partial->rtype, "%.*s", rtype_length, rtype);
+ partial->line_seen = line_seen;
+ partial->fn = fn;
+ fn->partial = partial;
+ partial->next = partial_proto_list;
+ partial_proto_list = partial;
+ if (verbose)
+ {
+ fprintf (stderr, "(%s: %s non-prototype function declaration.)\n",
+ inc_filename, partial->fname);
+ }
+}
+
+/* For any name in NAMES that is defined as a macro,
+ call recognized_macro on it. */
+
+void
+check_macro_names (pfile, names)
+ struct parse_file *pfile;
+ namelist names;
+{
+ while (*names)
+ {
+ if (cpp_lookup (pfile, names, -1, -1))
+ recognized_macro (names);
+ names += strlen (names) + 1;
+ }
+}
+
+void
+read_scan_file (in_fname, argc, argv)
+ char *in_fname;
+ int argc;
+ char **argv;
+{
+ cpp_reader scan_in;
+ cpp_options scan_options;
+ struct fn_decl *fn;
+ int i;
+
+ obstack_init (&scan_file_obstack);
+
+ init_parse_file (&scan_in);
+ scan_in.data = &scan_options;
+ init_parse_options (&scan_options);
+ i = cpp_handle_options (&scan_in, argc, argv);
+ if (i < argc)
+ fatal ("Invalid option `%s'", argv[i]);
+ push_parse_file (&scan_in, in_fname);
+ CPP_OPTIONS (&scan_in)->no_line_commands = 1;
+
+ scan_decls (&scan_in, argc, argv);
+ check_macro_names (&scan_in, include_entry->required);
+ check_macro_names (&scan_in, include_entry->extra);
+
+ if (verbose && (scan_in.errors + warnings) > 0)
+ fprintf (stderr, "(%s: %d errors and %d warnings from cpp)\n",
+ inc_filename, scan_in.errors, warnings);
+ if (scan_in.errors)
+ exit (0);
+
+ /* Traditionally, getc and putc are defined in terms of _filbuf and _flsbuf.
+ If so, those functions are also required. */
+ if (special_file_handling == stdio_h
+ && (fn = lookup_std_proto ("_filbuf", 7)) != NULL)
+ {
+ static char getchar_call[] = "getchar();";
+ cpp_buffer *buf =
+ cpp_push_buffer (&scan_in, getchar_call, sizeof(getchar_call) - 1);
+ int old_written = CPP_WRITTEN (&scan_in);
+ int seen_filbuf = 0;
+
+ /* Scan the macro expansion of "getchar();". */
+ for (;;)
+ {
+ enum cpp_token token = cpp_get_token (&scan_in);
+ int length = CPP_WRITTEN (&scan_in) - old_written;
+ CPP_SET_WRITTEN (&scan_in, old_written);
+ if (token == CPP_EOF) /* Should not happen ... */
+ break;
+ if (token == CPP_POP && CPP_BUFFER (&scan_in) == buf)
+ {
+ cpp_pop_buffer (&scan_in);
+ break;
+ }
+ if (token == CPP_NAME && length == 7
+ && strcmp ("_filbuf", scan_in.token_buffer + old_written) == 0)
+ seen_filbuf++;
+ }
+ if (seen_filbuf)
+ {
+ int need_filbuf = !SEEN (fn) && !REQUIRED (fn);
+ struct fn_decl *flsbuf_fn = lookup_std_proto ("_flsbuf", 7);
+ int need_flsbuf
+ = flsbuf_fn && !SEEN (flsbuf_fn) && !REQUIRED (flsbuf_fn);
+
+ /* Append "_filbuf" and/or "_flsbuf" to end of
+ required_functions_list. */
+ if (need_filbuf + need_flsbuf)
+ {
+ int old_len = namelist_end (required_functions_list)
+ - required_functions_list;
+ char *new_list = (char*) xmalloc (old_len + 20);
+ bcopy (required_functions_list, new_list, old_len);
+ if (need_filbuf)
+ {
+ strcpy (new_list + old_len, "_filbuf");
+ old_len += 8;
+ SET_REQUIRED (fn);
+ }
+ if (need_flsbuf)
+ {
+ strcpy (new_list + old_len, "_flsbuf");
+ old_len += 8;
+ SET_REQUIRED (flsbuf_fn);
+ }
+ new_list[old_len] = '\0';
+ required_functions_list = (namelist)new_list;
+ required_unseen_count += need_filbuf + need_flsbuf;
+ }
+ }
+ }
+
+ if (required_unseen_count + partial_count + missing_errno
+#if ADD_MISSING_EXTERN_C
+ + missing_extern_C_count
+#endif
+ == 0)
+ {
+ if (verbose)
+ fprintf (stderr, "%s: OK, nothing needs to be done.\n", inc_filename);
+ exit (0);
+ }
+ if (!verbose)
+ fprintf (stderr, "%s: fixing %s\n", progname, inc_filename);
+ else
+ {
+ if (required_unseen_count)
+ fprintf (stderr, "%s: %d missing function declarations.\n",
+ inc_filename, required_unseen_count);
+ if (partial_count)
+ fprintf (stderr, "%s: %d non-prototype function declarations.\n",
+ inc_filename, partial_count);
+#if ADD_MISSING_EXTERN_C
+ if (missing_extern_C_count)
+ fprintf (stderr,
+ "%s: %d declarations not protected by extern \"C\".\n",
+ inc_filename, missing_extern_C_count);
+#endif
+ }
+}
+
+void
+write_rbrac ()
+{
+ struct fn_decl *fn;
+ const char *cptr;
+
+ if (required_unseen_count)
+ {
+ fprintf (outf,
+ "#if defined(__cplusplus) || defined(__USE_FIXED_PROTOTYPES__)\n");
+#ifdef NO_IMPLICIT_EXTERN_C
+ fprintf (outf, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
+#endif
+ }
+
+ /* Now we print out prototypes for those functions that we haven't seen. */
+ for (cptr = required_functions_list; *cptr!= '\0'; )
+ {
+ int macro_protect = 0;
+ int name_len = strlen (cptr);
+
+ fn = lookup_std_proto (cptr, name_len);
+ cptr+= name_len + 1;
+ if (fn == NULL || !REQUIRED (fn))
+ continue;
+
+ /* In the case of memmove, protect in case the application
+ defines it as a macro before including the header. */
+ if (!strcmp (fn->fname, "memmove")
+ || !strcmp (fn->fname, "vprintf")
+ || !strcmp (fn->fname, "vfprintf")
+ || !strcmp (fn->fname, "vsprintf")
+ || !strcmp (fn->fname, "rewinddir"))
+ macro_protect = 1;
+
+ if (macro_protect)
+ fprintf (outf, "#ifndef %s\n", fn->fname);
+ fprintf (outf, "extern %s %s (%s);\n",
+ fn->rtype, fn->fname, fn->params);
+ if (macro_protect)
+ fprintf (outf, "#endif\n");
+ }
+ if (required_unseen_count)
+ {
+#ifdef NO_IMPLICIT_EXTERN_C
+ fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
+#endif
+ fprintf (outf,
+ "#endif /* defined(__cplusplus) || defined(__USE_FIXED_PROTOTYPES__*/\n");
+ }
+
+ switch (special_file_handling)
+ {
+ case errno_h:
+ if (missing_errno)
+ fprintf (outf, "extern int errno;\n");
+ break;
+ case sys_stat_h:
+ if (!seen_S_ISBLK && seen_S_IFBLK)
+ fprintf (outf,
+ "#define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)\n");
+ if (!seen_S_ISCHR && seen_S_IFCHR)
+ fprintf (outf,
+ "#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)\n");
+ if (!seen_S_ISDIR && seen_S_IFDIR)
+ fprintf (outf,
+ "#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)\n");
+ if (!seen_S_ISFIFO && seen_S_IFIFO)
+ fprintf (outf,
+ "#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)\n");
+ if (!seen_S_ISLNK && seen_S_IFLNK)
+ fprintf (outf,
+ "#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)\n");
+ if (!seen_S_ISREG && seen_S_IFREG)
+ fprintf (outf,
+ "#define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)\n");
+ break;
+ }
+
+
+#if ADD_MISSING_EXTERN_C
+ if (missing_extern_C_count + required_unseen_count > 0)
+ fprintf (outf, "#ifdef __cplusplus\n}\n#endif\n");
+#endif
+}
+
+char *
+xstrdup (str)
+ char *str;
+{
+ char *copy = (char *) xmalloc (strlen (str) + 1);
+ strcpy (copy, str);
+ return copy;
+}
+
+/* Returns 1 iff the file is properly protected from multiple inclusion:
+ #ifndef PROTECT_NAME
+ #define PROTECT_NAME
+ #endif
+
+ */
+
+#define INF_GET() (inf_ptr < inf_limit ? *(unsigned char*)inf_ptr++ : EOF)
+#define INF_UNGET(c) ((c)!=EOF && inf_ptr--)
+
+int
+inf_skip_spaces (c)
+ int c;
+{
+ for (;;)
+ {
+ if (c == ' ' || c == '\t')
+ c = INF_GET ();
+ else if (c == '/')
+ {
+ c = INF_GET ();
+ if (c != '*')
+ {
+ INF_UNGET (c);
+ return '/';
+ }
+ c = INF_GET ();
+ for (;;)
+ {
+ if (c == EOF)
+ return EOF;
+ else if (c != '*')
+ {
+ if (c == '\n')
+ source_lineno++, lineno++;
+ c = INF_GET ();
+ }
+ else if ((c = INF_GET ()) == '/')
+ return INF_GET ();
+ }
+ }
+ else
+ break;
+ }
+ return c;
+}
+
+/* Read into STR from inf_buffer upto DELIM. */
+
+int
+inf_read_upto (str, delim)
+ sstring *str;
+ int delim;
+{
+ int ch;
+ for (;;)
+ {
+ ch = INF_GET ();
+ if (ch == EOF || ch == delim)
+ break;
+ SSTRING_PUT (str, ch);
+ }
+ MAKE_SSTRING_SPACE (str, 1);
+ *str->ptr = 0;
+ return ch;
+}
+
+int
+inf_scan_ident (s, c)
+ register sstring *s;
+ int c;
+{
+ s->ptr = s->base;
+ if (isalpha (c) || c == '_')
+ {
+ for (;;)
+ {
+ SSTRING_PUT (s, c);
+ c = INF_GET ();
+ if (c == EOF || !(isalnum (c) || c == '_'))
+ break;
+ }
+ }
+ MAKE_SSTRING_SPACE (s, 1);
+ *s->ptr = 0;
+ return c;
+}
+
+/* Returns 1 if the file is correctly protected against multiple
+ inclusion, setting *ifndef_line to the line number of the initial #ifndef
+ and setting *endif_line to the final #endif.
+ Otherwise return 0. */
+
+int
+check_protection (ifndef_line, endif_line)
+ int *ifndef_line, *endif_line;
+{
+ int c;
+ int if_nesting = 1; /* Level of nesting of #if's */
+ char *protect_name = NULL; /* Identifier following initial #ifndef */
+ int define_seen = 0;
+
+ /* Skip initial white space (including comments). */
+ for (;; lineno++)
+ {
+ c = inf_skip_spaces (' ');
+ if (c == EOF)
+ return 0;
+ if (c != '\n')
+ break;
+ }
+ if (c != '#')
+ return 0;
+ c = inf_scan_ident (&buf, inf_skip_spaces (' '));
+ if (SSTRING_LENGTH (&buf) == 0 || strcmp (buf.base, "ifndef") != 0)
+ return 0;
+
+ /* So far so good: We've seen an initial #ifndef. */
+ *ifndef_line = lineno;
+ c = inf_scan_ident (&buf, inf_skip_spaces (c));
+ if (SSTRING_LENGTH (&buf) == 0 || c == EOF)
+ return 0;
+ protect_name = xstrdup (buf.base);
+
+ INF_UNGET (c);
+ c = inf_read_upto (&buf, '\n');
+ if (c == EOF)
+ return 0;
+ lineno++;
+
+ for (;;)
+ {
+ c = inf_skip_spaces (' ');
+ if (c == EOF)
+ return 0;
+ if (c == '\n')
+ {
+ lineno++;
+ continue;
+ }
+ if (c != '#')
+ goto skip_to_eol;
+ c = inf_scan_ident (&buf, inf_skip_spaces (' '));
+ if (SSTRING_LENGTH (&buf) == 0)
+ ;
+ else if (!strcmp (buf.base, "ifndef")
+ || !strcmp (buf.base, "ifdef") || !strcmp (buf.base, "if"))
+ {
+ if_nesting++;
+ }
+ else if (!strcmp (buf.base, "endif"))
+ {
+ if_nesting--;
+ if (if_nesting == 0)
+ break;
+ }
+ else if (!strcmp (buf.base, "else"))
+ {
+ if (if_nesting == 1)
+ return 0;
+ }
+ else if (!strcmp (buf.base, "define"))
+ {
+ if (if_nesting != 1)
+ goto skip_to_eol;
+ c = inf_skip_spaces (c);
+ c = inf_scan_ident (&buf, c);
+ if (buf.base[0] > 0 && strcmp (buf.base, protect_name) == 0)
+ define_seen = 1;
+ }
+ skip_to_eol:
+ for (;;)
+ {
+ if (c == '\n' || c == EOF)
+ break;
+ c = INF_GET ();
+ }
+ if (c == EOF)
+ return 0;
+ lineno++;
+ }
+
+ if (!define_seen)
+ return 0;
+ *endif_line = lineno;
+ /* Skip final white space (including comments). */
+ for (;;)
+ {
+ c = inf_skip_spaces (' ');
+ if (c == EOF)
+ break;
+ if (c != '\n')
+ return 0;
+ }
+
+ return 1;
+}
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int inf_fd;
+ struct stat sbuf;
+ int c;
+ int i, done;
+ const char *cptr, **pptr;
+ int ifndef_line;
+ int endif_line;
+ long to_read;
+ long int inf_size;
+
+ if (argv[0] && argv[0][0])
+ {
+ register char *p;
+
+ progname = 0;
+ for (p = argv[0]; *p; p++)
+ if (*p == '/')
+ progname = p;
+ progname = progname ? progname+1 : argv[0];
+ }
+
+ if (argc < 4)
+ {
+ fprintf (stderr, "%s: Usage: foo.h infile.h outfile.h options\n",
+ progname);
+ exit (-1);
+ }
+
+ inc_filename = argv[1];
+ inc_filename_length = strlen (inc_filename);
+
+#ifdef FIXPROTO_IGNORE_LIST
+ for (i = 0; files_to_ignore[i] != NULL; i++)
+ {
+ char *ignore_name = files_to_ignore[i];
+ int ignore_len = strlen (ignore_name);
+ if (strncmp (inc_filename, ignore_name, ignore_len) == 0)
+ {
+ if (ignore_name[ignore_len-1] == '/'
+ || inc_filename[ignore_len] == '\0')
+ {
+ if (verbose)
+ fprintf (stderr, "%s: ignoring %s\n", progname, inc_filename);
+ exit (0);
+ }
+ }
+
+ }
+#endif
+
+ if (strcmp (inc_filename, "sys/stat.h") == 0)
+ special_file_handling = sys_stat_h;
+ else if (strcmp (inc_filename, "errno.h") == 0)
+ special_file_handling = errno_h, missing_errno = 1;
+ else if (strcmp (inc_filename, "stdio.h") == 0)
+ special_file_handling = stdio_h;
+ include_entry = std_include_table;
+ while (include_entry->name != NULL
+ && strcmp (inc_filename, include_entry->name) != 0)
+ include_entry++;
+
+ required_functions_list = include_entry->required;
+
+ /* Count and mark the prototypes required for this include file. */
+ for (cptr = required_functions_list; *cptr!= '\0'; )
+ {
+ int name_len = strlen (cptr);
+ struct fn_decl *fn = lookup_std_proto (cptr, name_len);
+ required_unseen_count++;
+ if (fn == NULL)
+ fprintf (stderr, "Internal error: No prototype for %s\n", cptr);
+ else
+ SET_REQUIRED (fn);
+ cptr += name_len + 1;
+ }
+
+ read_scan_file (argv[2], argc - 4, argv + 4);
+
+ inf_fd = open (argv[2], O_RDONLY, 0666);
+ if (inf_fd < 0)
+ {
+ fprintf (stderr, "%s: Cannot open '%s' for reading -",
+ progname, argv[2]);
+ perror (NULL);
+ exit (-1);
+ }
+ if (fstat (inf_fd, &sbuf) < 0)
+ {
+ fprintf (stderr, "%s: Cannot get size of '%s' -", progname, argv[2]);
+ perror (NULL);
+ exit (-1);
+ }
+ inf_size = sbuf.st_size;
+ inf_buffer = (char*) xmalloc (inf_size + 2);
+ inf_buffer[inf_size] = '\n';
+ inf_buffer[inf_size + 1] = '\0';
+ inf_limit = inf_buffer + inf_size;
+ inf_ptr = inf_buffer;
+
+ to_read = inf_size;
+ while (to_read > 0)
+ {
+ long i = read (inf_fd, inf_buffer + inf_size - to_read, to_read);
+ if (i < 0)
+ {
+ fprintf (stderr, "%s: Failed to read '%s' -", progname, argv[2]);
+ perror (NULL);
+ exit (-1);
+ }
+ if (i == 0)
+ {
+ inf_size -= to_read;
+ break;
+ }
+ to_read -= i;
+ }
+
+ close (inf_fd);
+
+ /* If file doesn't end with '\n', add one. */
+ if (inf_limit > inf_buffer && inf_limit[-1] != '\n')
+ inf_limit++;
+
+ unlink (argv[3]);
+ outf = fopen (argv[3], "w");
+ if (outf == NULL)
+ {
+ fprintf (stderr, "%s: Cannot open '%s' for writing -",
+ progname, argv[3]);
+ perror (NULL);
+ exit (-1);
+ }
+
+ lineno = 1;
+
+ if (check_protection (&ifndef_line, &endif_line))
+ {
+ lbrac_line = ifndef_line+1;
+ rbrac_line = endif_line;
+ }
+ else
+ {
+ lbrac_line = 1;
+ rbrac_line = -1;
+ }
+
+ /* Reset input file. */
+ inf_ptr = inf_buffer;
+ lineno = 1;
+
+ for (;;)
+ {
+ if (lineno == lbrac_line)
+ write_lbrac ();
+ if (lineno == rbrac_line)
+ write_rbrac ();
+ for (;;)
+ {
+ struct fn_decl *fn;
+ c = INF_GET ();
+ if (c == EOF)
+ break;
+ if (isalpha (c) || c == '_')
+ {
+ c = inf_scan_ident (&buf, c);
+ INF_UNGET (c);
+ fputs (buf.base, outf);
+ fn = lookup_std_proto (buf.base, strlen (buf.base));
+ /* We only want to edit the declaration matching the one
+ seen by scan-decls, as there can be multiple
+ declarations, selected by #ifdef __STDC__ or whatever. */
+ if (fn && fn->partial && fn->partial->line_seen == lineno)
+ {
+ c = inf_skip_spaces (' ');
+ if (c == EOF)
+ break;
+ if (c == '(')
+ {
+ c = inf_skip_spaces (' ');
+ if (c == ')')
+ {
+ fprintf (outf, " _PARAMS((%s))", fn->params);
+ }
+ else
+ {
+ putc ('(', outf);
+ INF_UNGET (c);
+ }
+ }
+ else
+ fprintf (outf, " %c", c);
+ }
+ }
+ else
+ {
+ putc (c, outf);
+ if (c == '\n')
+ break;
+ }
+ }
+ if (c == EOF)
+ break;
+ lineno++;
+ }
+ if (rbrac_line < 0)
+ write_rbrac ();
+
+ fclose (outf);
+
+ return 0;
+}
+
+/* Stub error functions. These replace cpperror.c,
+ because we want to suppress error messages. */
+
+void
+cpp_file_line_for_message (pfile, filename, line, column)
+ cpp_reader *pfile;
+ char *filename;
+ int line, column;
+{
+ if (!verbose)
+ return;
+ if (column > 0)
+ fprintf (stderr, "%s:%d:%d: ", filename, line, column);
+ else
+ fprintf (stderr, "%s:%d: ", filename, line);
+}
+
+void
+cpp_print_containing_files (pfile)
+ cpp_reader *pfile;
+{
+}
+
+/* IS_ERROR is 1 for error, 0 for warning */
+void cpp_message (pfile, is_error, msg, arg1, arg2, arg3)
+ int is_error;
+ cpp_reader *pfile;
+ char *msg;
+ char *arg1, *arg2, *arg3;
+{
+ if (is_error)
+ pfile->errors++;
+ if (!verbose)
+ return;
+ if (!is_error)
+ fprintf (stderr, "warning: ");
+ fprintf (stderr, msg, arg1, arg2, arg3);
+ fprintf (stderr, "\n");
+}
+
+void
+fatal (str, arg)
+ char *str, *arg;
+{
+ fprintf (stderr, "%s: %s: ", progname, inc_filename);
+ fprintf (stderr, str, arg);
+ fprintf (stderr, "\n");
+ exit (FATAL_EXIT_CODE);
+}
+
+void
+cpp_pfatal_with_name (pfile, name)
+ cpp_reader *pfile;
+ char *name;
+{
+ cpp_perror_with_name (pfile, name);
+ exit (FATAL_EXIT_CODE);
+}
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