X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=src%2Fnt.c;h=bf46ba29edf875eaa18bf2b6293f1649ad998595;hb=4f29597e4f3696a59bb08ffece07183c1568c4a5;hp=e745609cfe77a87214f9576c9757d653a5bfebba;hpb=3e447015251ce6dcde843cbed10d9033d5538622;p=chise%2Fxemacs-chise.git- diff --git a/src/nt.c b/src/nt.c index e745609..bf46ba2 100644 --- a/src/nt.c +++ b/src/nt.c @@ -47,21 +47,7 @@ Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA #include #include -#include -#ifndef __MINGW32__ -#include -#else -typedef void (CALLBACK TIMECALLBACK)(UINT uTimerID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2); - -typedef TIMECALLBACK FAR *LPTIMECALLBACK; -DWORD WINAPI timeGetTime(void); -MMRESULT WINAPI timeSetEvent(UINT uDelay, UINT uResolution, - LPTIMECALLBACK fptc, DWORD dwUser, UINT fuEvent); -MMRESULT WINAPI timeKillEvent(UINT uTimerID); -MMRESULT WINAPI timeGetDevCaps(TIMECAPS* ptc, UINT cbtc); -MMRESULT WINAPI timeBeginPeriod(UINT uPeriod); -MMRESULT WINAPI timeEndPeriod(UINT uPeriod); -#endif +#include "syswindows.h" #include "nt.h" #include @@ -132,25 +118,25 @@ static struct passwd the_passwd = }; uid_t -getuid () +getuid (void) { return nt_fake_unix_uid; } uid_t -geteuid () +geteuid (void) { return nt_fake_unix_uid; } gid_t -getgid () +getgid (void) { return the_passwd.pw_gid; } gid_t -getegid () +getegid (void) { return getgid (); } @@ -183,7 +169,7 @@ getpwnam (const char *name) } void -init_user_info () +init_user_info (void) { /* This code is pretty much of ad hoc nature. There is no unix-like UIDs under Windows NT. There is no concept of root user, because @@ -290,7 +276,7 @@ init_user_info () putenv ((GetVersion () & 0x80000000) ? "SHELL=command" : "SHELL=cmd"); /* Set dir and shell from environment variables. */ - strcpy (the_passwd.pw_dir, get_home_directory()); + strcpy (the_passwd.pw_dir, (char *)get_home_directory()); strcpy (the_passwd.pw_shell, getenv ("SHELL")); } @@ -299,9 +285,7 @@ init_user_info () case path name components to lower case. */ static void -normalize_filename (fp, path_sep) - REGISTER char *fp; - char path_sep; +normalize_filename (char *fp, char path_sep) { char sep; char *elem; @@ -357,16 +341,14 @@ normalize_filename (fp, path_sep) /* Destructively turn backslashes into slashes. */ void -dostounix_filename (p) - REGISTER char *p; +dostounix_filename (char *p) { normalize_filename (p, '/'); } /* Destructively turn slashes into backslashes. */ void -unixtodos_filename (p) - REGISTER char *p; +unixtodos_filename (char *p) { normalize_filename (p, '\\'); } @@ -375,10 +357,7 @@ unixtodos_filename (p) (From msdos.c...probably should figure out a way to share it, although this code isn't going to ever change.) */ int -crlf_to_lf (n, buf, lf_count) - REGISTER int n; - REGISTER unsigned char *buf; - REGISTER unsigned *lf_count; +crlf_to_lf (int n, unsigned char *buf, unsigned *lf_count) { unsigned char *np = buf; unsigned char *startp = buf; @@ -555,9 +534,7 @@ request_sigio (void) #define REG_ROOT "SOFTWARE\\GNU\\XEmacs" LPBYTE -nt_get_resource (key, lpdwtype) - char *key; - LPDWORD lpdwtype; +nt_get_resource (char *key, LPDWORD lpdwtype) { LPBYTE lpvalue; HKEY hrootkey = NULL; @@ -602,7 +579,7 @@ nt_get_resource (key, lpdwtype) } void -init_environment () +init_environment (void) { /* Check for environment variables and use registry if they don't exist */ { @@ -624,7 +601,7 @@ init_environment () "EMACSLOCKDIR", "INFOPATH" }; -#ifdef HEAP_IN_DATA +#if defined (HEAP_IN_DATA) && !defined(PDUMP) cache_system_info (); #endif for (i = 0; i < countof (env_vars); i++) @@ -1259,6 +1236,11 @@ convert_time (FILETIME ft) } #else +#if defined(__MINGW32__) && CYGWIN_VERSION_DLL_MAJOR <= 21 +#define LowPart u.LowPart +#define HighPart u.HighPart +#endif + static LARGE_INTEGER utc_base_li; time_t @@ -1328,6 +1310,10 @@ convert_time (FILETIME uft) return ret; } #endif +#if defined(__MINGW32__) && CYGWIN_VERSION_DLL_MAJOR <= 21 +#undef LowPart +#undef HighPart +#endif #if 0 /* in case we ever have need of this */ @@ -1409,6 +1395,12 @@ generate_inode_val (const char * name) Oh, and do not encapsulater stat for non-MS compilers, too */ /* #### popineau@ese-metz.fr says they still might be broken. Oh well... Let's add that `1 ||' condition.... --kkm */ +/* #### aichner@ecf.teradyne.com reported that with the library + provided stat/fstat, (file-exist "d:\\tmp\\") =>> nil, + (file-exist "d:\\tmp") =>> t, when d:\tmp exists. Whenever + we opt to use non-encapsulated stat(), this should serve as + a compatibility test. --kkm */ + #if 1 || defined(_MSC_VER) && _MSC_VER < 1100 /* Since stat is encapsulated on Windows NT, we need to encapsulate @@ -1479,7 +1471,7 @@ stat (const char * path, struct stat * buf) len = strlen (name); rootdir = (path >= name + len - 1 && (IS_DIRECTORY_SEP (*path) || *path == 0)); - name = strcpy (alloca (len + 2), name); + name = strcpy ((char *)alloca (len + 2), name); if (rootdir) { @@ -1676,7 +1668,7 @@ term_ntproc (int unused) } void -init_ntproc () +init_ntproc (void) { /* Initial preparation for subprocess support: replace our standard handles with non-inheritable versions. */ @@ -2011,9 +2003,15 @@ int setitimer (int kind, const struct itimerval* itnew, return errno = EINVAL; } + +/*--------------------------------------------------------------------*/ +/* Memory-mapped files */ +/*--------------------------------------------------------------------*/ + int open_input_file (file_data *p_file, const char *filename) { + /* Synched with FSF 20.6. We fixed some warnings. */ HANDLE file; HANDLE file_mapping; void *file_base; @@ -2034,15 +2032,188 @@ open_input_file (file_data *p_file, const char *filename) if (file_base == 0) return FALSE; - p_file->name = (char*)filename; + p_file->name = (char *)filename; + p_file->size = size; + p_file->file = file; + p_file->file_mapping = file_mapping; + p_file->file_base = (char *)file_base; + + return TRUE; +} + +int +open_output_file (file_data *p_file, const char *filename, unsigned long size) +{ + /* Synched with FSF 20.6. We fixed some warnings. */ + HANDLE file; + HANDLE file_mapping; + void *file_base; + + file = CreateFile (filename, GENERIC_READ | GENERIC_WRITE, 0, NULL, + CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); + if (file == INVALID_HANDLE_VALUE) + return FALSE; + + file_mapping = CreateFileMapping (file, NULL, PAGE_READWRITE, + 0, size, NULL); + if (!file_mapping) + return FALSE; + + file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size); + if (file_base == NULL) + return FALSE; + + p_file->name = filename; p_file->size = size; p_file->file = file; p_file->file_mapping = file_mapping; - p_file->file_base = file_base; + p_file->file_base = (char*) file_base; return TRUE; } +#if 1 /* !defined(__MINGW32__) */ +/* Return pointer to section header for section containing the given + relative virtual address. */ +static IMAGE_SECTION_HEADER * +rva_to_section (DWORD rva, IMAGE_NT_HEADERS * nt_header) +{ + /* Synched with FSF 20.6. We added MINGW32 stuff. */ + PIMAGE_SECTION_HEADER section; + int i; + + section = IMAGE_FIRST_SECTION (nt_header); + + for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) + { + /* Some linkers (eg. the NT SDK linker I believe) swapped the + meaning of these two values - or rather, they ignored + VirtualSize entirely and always set it to zero. This affects + some very old exes (eg. gzip dated Dec 1993). Since + mswindows_executable_type relies on this function to work reliably, + we need to cope with this. */ + DWORD real_size = max (section->SizeOfRawData, + section->Misc.VirtualSize); + if (rva >= section->VirtualAddress + && rva < section->VirtualAddress + real_size) + return section; + section++; + } + return NULL; +} +#endif + +void +mswindows_executable_type (const char * filename, int * is_dos_app, + int * is_cygnus_app) +{ + /* Synched with FSF 20.6. We added MINGW32 stuff and casts. */ + file_data executable; + char * p; + + /* Default values in case we can't tell for sure. */ + *is_dos_app = FALSE; + *is_cygnus_app = FALSE; + + if (!open_input_file (&executable, filename)) + return; + + p = strrchr (filename, '.'); + + /* We can only identify DOS .com programs from the extension. */ + if (p && stricmp (p, ".com") == 0) + *is_dos_app = TRUE; + else if (p && (stricmp (p, ".bat") == 0 || + stricmp (p, ".cmd") == 0)) + { + /* A DOS shell script - it appears that CreateProcess is happy to + accept this (somewhat surprisingly); presumably it looks at + COMSPEC to determine what executable to actually invoke. + Therefore, we have to do the same here as well. */ + /* Actually, I think it uses the program association for that + extension, which is defined in the registry. */ + p = egetenv ("COMSPEC"); + if (p) + mswindows_executable_type (p, is_dos_app, is_cygnus_app); + } + else + { + /* Look for DOS .exe signature - if found, we must also check that + it isn't really a 16- or 32-bit Windows exe, since both formats + start with a DOS program stub. Note that 16-bit Windows + executables use the OS/2 1.x format. */ + +#if 0 /* defined( __MINGW32__ ) */ + /* mingw32 doesn't have enough headers to detect cygwin + apps, just do what we can. */ + FILHDR * exe_header; + + exe_header = (FILHDR*) executable.file_base; + if (exe_header->e_magic != DOSMAGIC) + goto unwind; + + if ((char*) exe_header->e_lfanew > (char*) executable.size) + { + /* Some dos headers (pkunzip) have bogus e_lfanew fields. */ + *is_dos_app = TRUE; + } + else if (exe_header->nt_signature != NT_SIGNATURE) + { + *is_dos_app = TRUE; + } +#else + IMAGE_DOS_HEADER * dos_header; + IMAGE_NT_HEADERS * nt_header; + + dos_header = (PIMAGE_DOS_HEADER) executable.file_base; + if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) + goto unwind; + + nt_header = (PIMAGE_NT_HEADERS) ((char*) dos_header + dos_header->e_lfanew); + + if ((char*) nt_header > (char*) dos_header + executable.size) + { + /* Some dos headers (pkunzip) have bogus e_lfanew fields. */ + *is_dos_app = TRUE; + } + else if (nt_header->Signature != IMAGE_NT_SIGNATURE && + LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE) + { + *is_dos_app = TRUE; + } + else if (nt_header->Signature == IMAGE_NT_SIGNATURE) + { + /* Look for cygwin.dll in DLL import list. */ + IMAGE_DATA_DIRECTORY import_dir = + nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT]; + IMAGE_IMPORT_DESCRIPTOR * imports; + IMAGE_SECTION_HEADER * section; + + section = rva_to_section (import_dir.VirtualAddress, nt_header); + imports = (IMAGE_IMPORT_DESCRIPTOR *) RVA_TO_PTR (import_dir.VirtualAddress, + section, executable); + + for ( ; imports->Name; imports++) + { + char *dllname = (char*) RVA_TO_PTR (imports->Name, section, executable); + + /* The exact name of the cygwin dll has changed with + various releases, but hopefully this will be reasonably + future proof. */ + if (strncmp (dllname, "cygwin", 6) == 0) + { + *is_cygnus_app = TRUE; + break; + } + } + } +#endif + } + + unwind: + close_file_data (&executable); +} + /* Close the system structures associated with the given file. */ void close_file_data (file_data *p_file)