X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1363811bb6338fb0dad6c16cfa47f46fb1eb3b99..24bd64eec17776d9f3ad4cabcd13697e56f568d1:/src/unix/utilsunx.cpp?ds=sidebyside diff --git a/src/unix/utilsunx.cpp b/src/unix/utilsunx.cpp index a0614ab927..79c2431059 100644 --- a/src/unix/utilsunx.cpp +++ b/src/unix/utilsunx.cpp @@ -39,8 +39,12 @@ #include #include // for O_WRONLY and friends #include // nanosleep() and/or usleep() +#include // isspace() -#ifdef HAVE_UNAME +// JACS: needed for FD_SETSIZE +#include + +#if HAVE_UNAME #include // for uname() #endif // HAVE_UNAME @@ -65,26 +69,16 @@ }; #endif // Unices without usleep() -// many versions of Unices have this function, but it is not defined in system -// headers - please add your system here if it is the case for your OS. -// SunOS (and Solaris) and DG-UX are like this. -#if defined(__SOLARIS__) || defined(__osf__) - extern "C" - { - pid_t wait4(pid_t pid, int *statusp, int options, - struct rusage *rusage); - } - - #define wxWait4(pid, stat, flags, rusage) wait4(pid, stat, flags, rusage) -#elif defined(__sgi) || defined(__HPUX__) - // no wait4() at all on these systems - // TODO verify whether wait3() really works in this situation - #define wxWait4(pid, stat, flags, rusage) wait3(stat, flags, rusage) -#else - // other Unices: assume have wait4(), although it's not standard (but - // Linux and FreeBSD do have it) - #define wxWait4(pid, stat, flags, rusage) wait4(pid, stat, flags, rusage) -#endif // wait4() +#ifdef __EMX__ + /* I copied this from the XFree86 diffs. AV. */ +extern void DosSleep(unsigned long); +#define INCL_DOSPROCESS +#include +void usleep(unsigned long delay) +{ + DosSleep(delay ? (delay/1000l) : 1l); +} +#endif // ============================================================================ // implementation @@ -101,19 +95,19 @@ void wxSleep(int nSecs) void wxUsleep(unsigned long milliseconds) { -#if defined(HAVE_NANOSLEEP) +#if HAVE_NANOSLEEP timespec tmReq; tmReq.tv_sec = milliseconds / 1000; tmReq.tv_nsec = (milliseconds % 1000) * 1000 * 1000; // we're not interested in remaining time nor in return value (void)nanosleep(&tmReq, (timespec *)NULL); -#elif defined(HAVE_USLEEP) +#elif HAVE_USLEEP // uncomment this if you feel brave or if you are sure that your version // of Solaris has a safe usleep() function but please notice that usleep() // is known to lead to crashes in MT programs in Solaris 2.[67] and is not // documented as MT-Safe - #if defined(__SUN__) && defined(wxUSE_THREADS) + #if defined(__SUN__) && wxUSE_THREADS #error "usleep() cannot be used in MT programs under Solaris." #endif // Sun @@ -127,29 +121,79 @@ void wxUsleep(unsigned long milliseconds) // process management // ---------------------------------------------------------------------------- -int wxKill(long pid, int sig) +int wxKill(long pid, wxSignal sig) { - return kill(pid, sig); + return kill(pid, (int)sig); } +#define WXEXECUTE_NARGS 127 + long wxExecute( const wxString& command, bool sync, wxProcess *process ) { - static const char *IFS = " \t\n"; - - wxCHECK_MSG( !command.IsEmpty(), 0, "can't exec empty command" ); + wxCHECK_MSG( !command.IsEmpty(), 0, _T("can't exec empty command") ); int argc = 0; - char *argv[127]; - char *tmp = new char[command.Len() + 1]; - strcpy(tmp, command); + wxChar *argv[WXEXECUTE_NARGS]; + wxString argument; + const wxChar *cptr = command.c_str(); + wxChar quotechar = _T('\0'); // is arg quoted? + bool escaped = FALSE; + + // split the command line in arguments + do + { + argument=_T(""); + quotechar = _T('\0'); + + // eat leading whitespace: + while ( wxIsspace(*cptr) ) + cptr++; + + if ( *cptr == _T('\'') || *cptr == _T('"') ) + quotechar = *cptr++; + + do + { + if ( *cptr == _T('\\') && ! escaped ) + { + escaped = TRUE; + cptr++; + continue; + } - argv[argc++] = strtok(tmp, IFS); - while ((argv[argc++] = strtok((char *) NULL, IFS)) != NULL) - /* loop */ ; + // all other characters: + argument += *cptr++; + escaped = FALSE; + // have we reached the end of the argument? + if ( (*cptr == quotechar && ! escaped) + || (quotechar == _T('\0') && wxIsspace(*cptr)) + || *cptr == _T('\0') ) + { + wxASSERT_MSG( argc < WXEXECUTE_NARGS, + _T("too many arguments in wxExecute") ); + + argv[argc] = new wxChar[argument.length() + 1]; + wxStrcpy(argv[argc], argument.c_str()); + argc++; + + // if not at end of buffer, swallow last character: + if(*cptr) + cptr++; + + break; // done with this one, start over + } + } while(*cptr); + } while(*cptr); + argv[argc] = NULL; + + // do execute the command long lRc = wxExecute(argv, sync, process); - delete [] tmp; + // clean up + argc = 0; + while( argv[argc] ) + delete [] argv[argc++]; return lRc; } @@ -158,7 +202,7 @@ bool wxShell(const wxString& command) { wxString cmd; if ( !!command ) - cmd.Printf("xterm -e %s", command.c_str()); + cmd.Printf(_T("xterm -e %s"), command.c_str()); else cmd = command; @@ -169,13 +213,26 @@ void wxHandleProcessTermination(wxEndProcessData *proc_data) { int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid); + // waitpid is POSIX so should be available everywhere, however on older + // systems wait() might be used instead in a loop (until the right pid + // terminates) int status = 0; - wxWait4(pid, &status, 0, (rusage *) NULL); - - if (proc_data->process) - proc_data->process->OnTerminate(proc_data->pid, status); + if ( waitpid(pid, &status, 0) == -1 || !WIFEXITED(status) ) + { + wxLogSysError(_("Waiting for subprocess termination failed")); + } + else + { + // notify user about termination if required + if (proc_data->process) + { + proc_data->process->OnTerminate(proc_data->pid, + WEXITSTATUS(status)); + } + } - if (proc_data->pid > 0) + // clean up + if ( proc_data->pid > 0 ) { delete proc_data; } @@ -188,21 +245,39 @@ void wxHandleProcessTermination(wxEndProcessData *proc_data) } } -long wxExecute( char **argv, bool sync, wxProcess *process ) +long wxExecute( wxChar **argv, bool sync, wxProcess *process ) { - wxCHECK_MSG( *argv, 0, "can't exec empty command" ); + wxCHECK_MSG( *argv, 0, _T("can't exec empty command") ); int end_proc_detect[2]; +#if wxUSE_UNICODE + int mb_argc = 0; + char *mb_argv[WXEXECUTE_NARGS]; + + while (argv[mb_argc]) { + wxWX2MBbuf mb_arg = wxConvCurrent->cWX2MB(argv[mb_argc]); + mb_argv[mb_argc] = strdup(mb_arg); + mb_argc++; + } + mb_argv[mb_argc] = (char *) NULL; +#else + wxChar **mb_argv = argv; +#endif // create pipes if (pipe(end_proc_detect) == -1) { wxLogSysError( _("Pipe creation failed") ); +#if wxUSE_UNICODE + mb_argc = 0; + while (mb_argv[mb_argc]) + free(mb_argv[mb_argc++]); +#endif return 0; } // fork the process -#ifdef HAVE_VFORK +#if HAVE_VFORK pid_t pid = vfork(); #else pid_t pid = fork(); @@ -210,6 +285,11 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) if (pid == -1) { wxLogSysError( _("Fork failed") ); +#if wxUSE_UNICODE + mb_argc = 0; + while (mb_argv[mb_argc]) + free(mb_argv[mb_argc++]); +#endif return 0; } else if (pid == 0) @@ -219,7 +299,7 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) // These three lines close the open file descriptors to to avoid any // input/output which might block the process or irritate the user. If - // one wants proper IO for the subprocess, the "right thing to do is + // one wants proper IO for the subprocess, the right thing to do is // to start an xterm executing it. if (sync == 0) { @@ -241,14 +321,10 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) open("/dev/null", O_WRONLY); // stderr #endif -#ifdef _AIX - execvp ((const char *)*argv, (const char **)argv); -#else - execvp (*argv, argv); -#endif + execvp (*mb_argv, mb_argv); // there is no return after successful exec() - fprintf(stderr, _("Can't execute '%s'\n"), *argv); + wxFprintf(stderr, _("Can't execute '%s'\n"), *argv); _exit(-1); } @@ -260,9 +336,15 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) wxEndProcessData *data = new wxEndProcessData; data->tag = wxAddProcessCallback(data, end_proc_detect[0]); +#if wxUSE_UNICODE + mb_argc = 0; + while (mb_argv[mb_argc]) + free(mb_argv[mb_argc++]); +#endif + if ( sync ) { - wxASSERT_MSG( !process, "wxProcess param ignored for sync exec" ); + wxASSERT_MSG( !process, _T("wxProcess param ignored for sync exec") ); data->process = NULL; // sync execution: indicate it by negating the pid @@ -295,30 +377,34 @@ long wxExecute( char **argv, bool sync, wxProcess *process ) // file and directory functions // ---------------------------------------------------------------------------- -const char* wxGetHomeDir( wxString *home ) +const wxChar* wxGetHomeDir( wxString *home ) { *home = wxGetUserHome( wxString() ); if ( home->IsEmpty() ) - *home = "/"; + *home = _T("/"); return home->c_str(); } +#if wxUSE_UNICODE +const wxMB2WXbuf wxGetUserHome( const wxString &user ) +#else // just for binary compatibility char *wxGetUserHome( const wxString &user ) +#endif { struct passwd *who = (struct passwd *) NULL; - if (user.IsNull() || (user== "")) + if ( !user ) { - register char *ptr; + register wxChar *ptr; - if ((ptr = getenv("HOME")) != NULL) + if ((ptr = wxGetenv(_T("HOME"))) != NULL) { return ptr; } - if ((ptr = getenv("USER")) != NULL || (ptr = getenv("LOGNAME")) != NULL) + if ((ptr = wxGetenv(_T("USER"))) != NULL || (ptr = wxGetenv(_T("LOGNAME"))) != NULL) { - who = getpwnam(ptr); + who = getpwnam(wxConvCurrent->cWX2MB(ptr)); } // We now make sure the the user exists! @@ -329,21 +415,28 @@ char *wxGetUserHome( const wxString &user ) } else { - who = getpwnam (user); + who = getpwnam (user.mb_str()); } - return who ? who->pw_dir : (char*)NULL; +#if wxUSE_UNICODE + return who ? wxConvCurrent->cMB2WX(who->pw_dir) : (wxMB2WXbuf)((wxChar*)NULL); +#else + return who ? who->pw_dir : ((char*)NULL); +#endif } // ---------------------------------------------------------------------------- -// id routines +// network and user id routines // ---------------------------------------------------------------------------- -bool wxGetHostName(char *buf, int sz) +// retrieve either the hostname or FQDN depending on platform (caller must +// check whether it's one or the other, this is why this function is for +// private use only) +static bool wxGetHostNameInternal(wxChar *buf, int sz) { - wxCHECK_MSG( buf, FALSE, "NULL pointer in wxGetHostName" ); + wxCHECK_MSG( buf, FALSE, _T("NULL pointer in wxGetHostNameInternal") ); - *buf = '\0'; + *buf = _T('\0'); // we're using uname() which is POSIX instead of less standard sysinfo() #if defined(HAVE_UNAME) @@ -351,16 +444,16 @@ bool wxGetHostName(char *buf, int sz) bool ok = uname(&uts) != -1; if ( ok ) { - strncpy(buf, uts.nodename, sz - 1); - buf[sz] = '\0'; + wxStrncpy(buf, wxConvCurrent->cMB2WX(uts.nodename), sz - 1); + buf[sz] = _T('\0'); } #elif defined(HAVE_GETHOSTNAME) bool ok = gethostname(buf, sz) != -1; -#else - wxFAIL_MSG("don't know host name for this machibe"); +#else // no uname, no gethostname + wxFAIL_MSG(_T("don't know host name for this machine")); bool ok = FALSE; -#endif +#endif // uname/gethostname if ( !ok ) { @@ -370,31 +463,77 @@ bool wxGetHostName(char *buf, int sz) return ok; } -bool wxGetUserId(char *buf, int sz) +bool wxGetHostName(wxChar *buf, int sz) +{ + bool ok = wxGetHostNameInternal(buf, sz); + + if ( ok ) + { + // BSD systems return the FQDN, we only want the hostname, so extract + // it (we consider that dots are domain separators) + wxChar *dot = wxStrchr(buf, _T('.')); + if ( dot ) + { + // nuke it + *dot = _T('\0'); + } + } + + return ok; +} + +bool wxGetFullHostName(wxChar *buf, int sz) +{ + bool ok = wxGetHostNameInternal(buf, sz); + + if ( ok ) + { + if ( !wxStrchr(buf, _T('.')) ) + { + struct hostent *host = gethostbyname(wxConvCurrent->cWX2MB(buf)); + if ( !host ) + { + wxLogSysError(_("Cannot get the official hostname")); + + ok = FALSE; + } + else + { + // the canonical name + wxStrncpy(buf, wxConvCurrent->cMB2WX(host->h_name), sz); + } + } + //else: it's already a FQDN (BSD behaves this way) + } + + return ok; +} + +bool wxGetUserId(wxChar *buf, int sz) { struct passwd *who; - *buf = '\0'; + *buf = _T('\0'); if ((who = getpwuid(getuid ())) != NULL) { - strncpy (buf, who->pw_name, sz - 1); + wxStrncpy (buf, wxConvCurrent->cMB2WX(who->pw_name), sz - 1); return TRUE; } return FALSE; } -bool wxGetUserName(char *buf, int sz) +bool wxGetUserName(wxChar *buf, int sz) { struct passwd *who; char *comma; - *buf = '\0'; + *buf = _T('\0'); if ((who = getpwuid (getuid ())) != NULL) { comma = strchr(who->pw_gecos, ','); if (comma) *comma = '\0'; // cut off non-name comment fields - strncpy (buf, who->pw_gecos, sz - 1); + wxStrncpy (buf, wxConvCurrent->cMB2WX(who->pw_gecos), sz - 1); return TRUE; } @@ -416,29 +555,17 @@ void wxDebugMsg( const char *format, ... ) void wxError( const wxString &msg, const wxString &title ) { - fprintf( stderr, _("Error ") ); - if (!title.IsNull()) fprintf( stderr, "%s ", WXSTRINGCAST(title) ); - if (!msg.IsNull()) fprintf( stderr, ": %s", WXSTRINGCAST(msg) ); - fprintf( stderr, ".\n" ); + wxFprintf( stderr, _("Error ") ); + if (!title.IsNull()) wxFprintf( stderr, _T("%s "), WXSTRINGCAST(title) ); + if (!msg.IsNull()) wxFprintf( stderr, _T(": %s"), WXSTRINGCAST(msg) ); + wxFprintf( stderr, _T(".\n") ); } void wxFatalError( const wxString &msg, const wxString &title ) { - fprintf( stderr, _("Error ") ); - if (!title.IsNull()) fprintf( stderr, "%s ", WXSTRINGCAST(title) ); - if (!msg.IsNull()) fprintf( stderr, ": %s", WXSTRINGCAST(msg) ); - fprintf( stderr, ".\n" ); + wxFprintf( stderr, _("Error ") ); + if (!title.IsNull()) wxFprintf( stderr, _T("%s "), WXSTRINGCAST(title) ); + if (!msg.IsNull()) wxFprintf( stderr, _T(": %s"), WXSTRINGCAST(msg) ); + wxFprintf( stderr, _T(".\n") ); exit(3); // the same exit code as for abort() } - -//------------------------------------------------------------------------ -// directory routines -//------------------------------------------------------------------------ - -bool wxDirExists( const wxString& dir ) -{ - char buf[500]; - strcpy( buf, WXSTRINGCAST(dir) ); - struct stat sbuf; - return ((stat(buf, &sbuf) != -1) && S_ISDIR(sbuf.st_mode) ? TRUE : FALSE); -}