|
|
| version 1.48.2.18.2.14, 2003/04/07 15:32:57 | version 1.70, 2007/11/14 12:45:45 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: program executing for different OS-es. | Parser: program executing for different OS-es. |
| Copyright(c) 2000,2001-2003 ArtLebedev Group(http://www.artlebedev.com) | Copyright(c) 2000,2001-2005 ArtLebedev Group(http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| @todo setrlimit | @todo setrlimit |
| */ | */ |
| static const char* IDENT_EXEC_C="$Date$"; | static const char * const IDENT_EXEC_C="$Date$"; |
| #include "pa_config_includes.h" | #include "pa_config_includes.h" |
| Line 27 static const char* IDENT_EXEC_C="$Date$" | Line 27 static const char* IDENT_EXEC_C="$Date$" |
| /// this func from http://www.ccas.ru/~posp/popov/spawn.htm | /// this func from http://www.ccas.ru/~posp/popov/spawn.htm |
| static DWORD CreateHiddenConsoleProcess(LPCTSTR szCmdLine, | static DWORD CreateHiddenConsoleProcess(LPCTSTR szCmdLine, |
| LPCTSTR szScriptFileSpec, | |
| char *szEnv, | char *szEnv, |
| PROCESS_INFORMATION* ppi, | PROCESS_INFORMATION* ppi, |
| LPHANDLE phInWrite, | LPHANDLE phInWrite, |
| LPHANDLE phOutRead, | LPHANDLE phOutRead, |
| LPHANDLE phErrRead) | LPHANDLE phErrRead) |
| { | { |
| DWORD result=0; | DWORD result=0; |
| BOOL fCreated; | BOOL fCreated; |
| STARTUPINFO si; | STARTUPINFO si; |
| SECURITY_ATTRIBUTES sa={0}; | SECURITY_ATTRIBUTES sa={0}; |
| HANDLE hInRead; | HANDLE hInRead; |
| HANDLE hOutWrite; | HANDLE hOutWrite; |
| HANDLE hErrWrite; | HANDLE hErrWrite; |
| // Create pipes | // Create pipes |
| // initialize security attributes for handle inheritance (for WinNT) | // initialize security attributes for handle inheritance (for WinNT) |
| sa.nLength=sizeof(sa); | sa.nLength=sizeof(sa); |
| sa.bInheritHandle=TRUE; | sa.bInheritHandle=TRUE; |
| sa.lpSecurityDescriptor=NULL; | sa.lpSecurityDescriptor=NULL; |
| // create STDIN pipe | // create STDIN pipe |
| if(!CreatePipe(&hInRead, phInWrite, &sa, 0)) | if(!CreatePipe(&hInRead, phInWrite, &sa, 0)) |
| goto error; | goto error; |
| // create STDOUT pipe | // create STDOUT pipe |
| if(!CreatePipe(phOutRead, &hOutWrite, &sa, 0)) | if(!CreatePipe(phOutRead, &hOutWrite, &sa, 0)) |
| goto error; | goto error; |
| // create STDERR pipe | // create STDERR pipe |
| if(!CreatePipe(phErrRead, &hErrWrite, &sa, 0)) | if(!CreatePipe(phErrRead, &hErrWrite, &sa, 0)) |
| goto error; | goto error; |
| // process startup information | // process startup information |
| memset(&si, 0, sizeof(si)); | memset(&si, 0, sizeof(si)); |
| si.cb=sizeof(si); | si.cb=sizeof(si); |
| si.dwFlags=STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES; | si.dwFlags=STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES; |
| // child process' console must be hidden for Win95 compatibility | // child process' console must be hidden for Win95 compatibility |
| si.wShowWindow=SW_HIDE; | si.wShowWindow=SW_HIDE; |
| // assign "other" sides of pipes | // assign "other" sides of pipes |
| si.hStdInput=hInRead; | si.hStdInput=hInRead; |
| si.hStdOutput=hOutWrite; | si.hStdOutput=hOutWrite; |
| si.hStdError=hErrWrite; | si.hStdError=hErrWrite; |
| // calculating script's directory | // calculating script's directory |
| char dir[MAX_STRING]; | char dir[MAX_STRING]; |
| strncpy(dir, szCmdLine, MAX_STRING-1); dir[MAX_STRING-1]=0; | strncpy(dir, szScriptFileSpec, MAX_STRING-1); dir[MAX_STRING-1]=0; |
| lsplit(dir,' '); // trim arguments | lsplit(dir,' '); // trim arguments |
| rsplit(dir,'/'); rsplit(dir,'\\'); // trim filename | rsplit(dir,'/'); rsplit(dir,'\\'); // trim filename |
| chdir(dir); | |
| // Create a child process (suspended) | |
| // Create a child process (suspended) | fCreated=CreateProcess(NULL, |
| fCreated=CreateProcess(NULL, | (LPTSTR)szCmdLine, |
| (LPTSTR)szCmdLine, | NULL, |
| NULL, | NULL, |
| NULL, | TRUE, |
| TRUE, | CREATE_NO_WINDOW, |
| CREATE_NO_WINDOW, | szEnv, |
| szEnv, | dir, |
| dir, | &si, |
| &si, | ppi); |
| ppi); | |
| if(!fCreated) | if(!fCreated) |
| result=GetLastError(); | result=GetLastError(); |
| CloseHandle(hInRead); | CloseHandle(hInRead); |
| CloseHandle(hOutWrite); | CloseHandle(hOutWrite); |
| CloseHandle(hErrWrite); | CloseHandle(hErrWrite); |
| if(!fCreated) | if(!fCreated) |
| goto error; | goto error; |
| return result; | return result; |
| error: | error: |
| if(!result/*yet*/) | if(!result/*yet*/) |
| result=GetLastError(); // get it | result=GetLastError(); // get it |
| CloseHandle(*phInWrite); | CloseHandle(*phInWrite); |
| CloseHandle(*phOutRead); | CloseHandle(*phOutRead); |
| CloseHandle(*phErrRead); | CloseHandle(*phErrRead); |
| return result; | return result; |
| } | } |
| static void read_pipe(String& result, HANDLE hOutRead, String::Language lang){ | static void read_pipe(String& result, HANDLE hOutRead, String::Language lang){ |
| Line 118 static void read_pipe(String& result, HA | Line 118 static void read_pipe(String& result, HA |
| if(!ReadFile(hOutRead, buf, MAX_STRING-1, &size, NULL) || !size) | if(!ReadFile(hOutRead, buf, MAX_STRING-1, &size, NULL) || !size) |
| break; | break; |
| buf[size]=0; | buf[size]=0; |
| result.append_help_length(buf, size, lang); | result.append_know_length(buf, size, lang); |
| } | |
| } | |
| static void read_pipe(File_read_result& result, HANDLE hOutRead){ | |
| char *buf=new(PointerFreeGC) char[MAX_STRING]; | |
| unsigned long size = 0; | |
| unsigned long bufsize = 0; | |
| unsigned long newsize = 0; | |
| result.headers = 0; | |
| result.length = 0; | |
| result.str = 0; | |
| result.success = false; | |
| while(true) { | |
| if(!ReadFile(hOutRead, buf, MAX_STRING, &size, NULL) || !size) | |
| break; | |
| newsize = (size + result.length); | |
| if(newsize > bufsize){ | |
| bufsize = (size==MAX_STRING)?newsize*2:newsize; | |
| char *tmp = new(PointerFreeGC) char[bufsize]; | |
| if(result.str) | |
| memcpy(tmp, result.str, result.length); | |
| memcpy(tmp+result.length, buf, size); | |
| result.str = tmp; | |
| }else{ | |
| memcpy(result.str+result.length, buf, size); | |
| } | |
| result.length = newsize; | |
| } | } |
| } | } |
| Line 132 static const char* buildCommand(const ch | Line 162 static const char* buildCommand(const ch |
| buf[size]=0; | buf[size]=0; |
| if(strncmp(buf, "#!", 2)==0) { | if(strncmp(buf, "#!", 2)==0) { |
| const char* begin=buf+2; | const char* begin=buf+2; |
| if(*begin==' ') // alx: were an old magic for some linux-es | while(*begin==' ') // alx: were an old magic for some linux-es |
| begin++; | begin++; |
| if(char *end=strchr(begin, '\n')) { | if(const char *end=strchr(begin, '\n')) { |
| String string(begin, end-begin); | String string(pa_strdup(begin, end-begin)); |
| string << " " << file_spec_cstr; | string << " " << file_spec_cstr; |
| result=string.cstr(); | result=string.cstr(); |
| } | } |
| Line 271 static pid_t execve_piped(const char* fi | Line 301 static pid_t execve_piped(const char* fi |
| static int get_exit_status(int pid) { | static int get_exit_status(int pid) { |
| int status; | int status; |
| if(!waitpid(pid, &status, 0)) | pid_t cid; |
| while ((cid=waitpid(pid, &status, WUNTRACED)) == -1 && errno == EINTR); | |
| if(!cid) | |
| return -1; | return -1; |
| return WIFEXITED(status) ? | return WIFEXITED(status) ? |
| WEXITSTATUS(status) : -2; | WEXITSTATUS(status) : -2; |
| Line 284 static void read_pipe(String& result, in | Line 316 static void read_pipe(String& result, in |
| if(length<=0) | if(length<=0) |
| break; | break; |
| buf[length]=0; | buf[length]=0; |
| result.append_help_length(buf, length, lang); | result.append_know_length(buf, length, lang); |
| } | |
| } | |
| static void read_pipe(File_read_result& result, int file){ | |
| char *buf=new(PointerFreeGC) char[MAX_STRING]; | |
| ssize_t size = 0; | |
| unsigned long bufsize = 0; | |
| unsigned long newsize = 0; | |
| result.headers = 0; | |
| result.length = 0; | |
| result.str = 0; | |
| result.success = false; | |
| while(true) { | |
| read(file, buf, MAX_STRING); | |
| if(size <= 0) | |
| break; | |
| newsize = (size + result.length); | |
| if(newsize > bufsize){ | |
| bufsize = (size==MAX_STRING)?newsize*2:newsize; | |
| char *tmp = new(PointerFreeGC) char[bufsize]; | |
| if(result.str) | |
| memcpy(tmp, result.str, result.length); | |
| memcpy(tmp+result.length, buf, size); | |
| result.str = tmp; | |
| }else{ | |
| memcpy(result.str+result.length, buf, size); | |
| } | |
| result.length = newsize; | |
| } | } |
| } | } |
| Line 293 static void read_pipe(String& result, in | Line 356 static void read_pipe(String& result, in |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct Append_env_pair_info { | struct Append_env_pair_info { |
| #ifdef WIN32 | #ifdef WIN32 |
| String& string; | String::Body& body; |
| Append_env_pair_info(String& astring): string(astring) {} | Append_env_pair_info(String::Body& abody): body(abody) {} |
| #else | #else |
| char **env_ref; | char **env_ref; |
| #endif | #endif |
| Line 304 struct Append_env_pair_info { | Line 367 struct Append_env_pair_info { |
| static void append_env_pair(HashStringString::key_type key, HashStringString::value_type value, | static void append_env_pair(HashStringString::key_type key, HashStringString::value_type value, |
| Append_env_pair_info *info) { | Append_env_pair_info *info) { |
| #ifdef WIN32 | #ifdef WIN32 |
| info->string << key << "=" << value; | info->body << key << "=" << value; |
| info->string.append_help_length("", 1, String::L_AS_IS); // zero byte | info->body.append_know_length("\1", 1); // placeholder for of zero byte |
| #else | #else |
| StringBody body; | String::Body body; |
| body << key << "=" << value; | body << key << "=" << value.cstr(); |
| *(info->env_ref++)=body.cstrm(); | *(info->env_ref++)=body.cstrm(); |
| #endif | #endif |
| } | } |
| /// @todonow unix part to smart_ptr | |
| PA_exec_result pa_exec( | PA_exec_result pa_exec( |
| bool forced_allow, | bool |
| #if defined(NO_PA_EXEC) || defined(PA_SAFE_MODE) | |
| forced_allow | |
| #endif | |
| , | |
| const String& file_spec, | const String& file_spec, |
| const HashStringString* env, | const HashStringString* env, |
| const ArrayString& argv, | const ArrayString& argv, |
| Line 325 PA_exec_result pa_exec( | Line 391 PA_exec_result pa_exec( |
| #ifdef NO_PA_EXECS | #ifdef NO_PA_EXECS |
| if(!forced_allow) | if(!forced_allow) |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &file_spec, | &file_spec, |
| "parser execs are disabled [recompile parser without --disable-execs configure option]"); | "parser execs are disabled [recompile parser without --disable-execs configure option]"); |
| #endif | #endif |
| // execve needs non const | |
| char* file_spec_cstr=file_spec.cstrm(String::L_FILE_SPEC); | |
| #ifdef WIN32 | #ifdef WIN32 |
| PROCESS_INFORMATION pi; | PROCESS_INFORMATION pi; |
| HANDLE hInWrite, hOutRead, hErrRead; | HANDLE hInWrite, hOutRead, hErrRead; |
| const char* cmd=buildCommand(file_spec.cstr(String::L_FILE_SPEC), argv); | const char* script_spec_cstr=file_spec.cstr(String::L_FILE_SPEC); |
| char* env_cstr; | const char* cmd=buildCommand(script_spec_cstr, argv); |
| char* env_cstr=0; | |
| if(env) { | if(env) { |
| String string; | String::Body body; |
| Append_env_pair_info info(string); | Append_env_pair_info info(body); |
| env->for_each(append_env_pair, &info); | env->for_each<Append_env_pair_info*>(append_env_pair, &info); |
| env_cstr=info.string.cstrm(String::L_UNSPECIFIED); | env_cstr=info.body.cstrm(); |
| for(char* replacer=env_cstr; *replacer; replacer++) | |
| if(*replacer=='\1') | |
| *replacer=0; | |
| } | } |
| if(DWORD error=CreateHiddenConsoleProcess(cmd, env_cstr, &pi, &hInWrite, &hOutRead, &hErrRead)) { | if(DWORD error=CreateHiddenConsoleProcess(cmd, script_spec_cstr, env_cstr, &pi, &hInWrite, &hOutRead, &hErrRead)) { |
| char szErrorDesc[MAX_STRING]; | char szErrorDesc[MAX_STRING]; |
| const char* param="the file you tried to run"; | const char* param="the file you tried to run"; |
| size_t error_size=FormatMessage( | size_t error_size=FormatMessage( |
| Line 356 PA_exec_result pa_exec( | Line 424 PA_exec_result pa_exec( |
| throw Exception(0, | throw Exception(0, |
| &file_spec, | &file_spec, |
| "exec failed - %s (%ld). Consider adding shbang line (#!x:\\interpreter\\command line)", | "exec failed - %s (%u). Consider adding shbang line (#!x:\\interpreter\\command line)", |
| error_size?szErrorDesc:"<unknown>", (long)error); | error_size?szErrorDesc:"<unknown>", error); |
| } else { | } else { |
| const char* in_cstr=in.cstr(); | const char* in_cstr=in.cstr(); |
| DWORD written_size; | DWORD written_size; |
| Line 367 PA_exec_result pa_exec( | Line 435 PA_exec_result pa_exec( |
| // without this char | // without this char |
| WriteFile(hInWrite, "\x1A", 1, &written_size, NULL); | WriteFile(hInWrite, "\x1A", 1, &written_size, NULL); |
| CloseHandle(hInWrite); | CloseHandle(hInWrite); |
| read_pipe(result.out, hOutRead, String::L_AS_IS); | read_pipe(result.out, hOutRead); |
| CloseHandle(hOutRead); | CloseHandle(hOutRead); |
| read_pipe(result.err, hErrRead, String::L_TAINTED); | read_pipe(result.err, hErrRead, String::L_TAINTED); |
| CloseHandle(hErrRead); | CloseHandle(hErrRead); |
| Line 383 from http://www.apache.org/websrc/cvsweb | Line 451 from http://www.apache.org/websrc/cvsweb |
| #else | #else |
| // execve needs non const | |
| char* file_spec_cstr=file_spec.cstrm(String::L_FILE_SPEC); | |
| int pipe_write, pipe_read, pipe_err; | int pipe_write, pipe_read, pipe_err; |
| #ifdef PA_SAFE_MODE | #ifdef PA_SAFE_MODE |
| Line 398 from http://www.apache.org/websrc/cvsweb | Line 469 from http://www.apache.org/websrc/cvsweb |
| } | } |
| #endif | #endif |
| char* argv_cstrs[1+10+1]={file_spec_cstr, 0}; | char* argv_cstrs[1+50+1]={file_spec_cstr, 0}; |
| const int argv_size=argv.count(); | const int argv_size=argv.count(); |
| const int argv_max=sizeof(argv_cstrs)/sizeof(argv_cstrs[0])-1-1; | const int argv_max=sizeof(argv_cstrs)/sizeof(argv_cstrs[0])-1-1; |
| if(argv_size>argv_max) | if(argv_size>argv_max) |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &file_spec, | &file_spec, |
| "too many arguments (%d > max %d)", argv_size, argv_max); | "too many arguments (%d > max %d)", argv_size, argv_max); |
| for(int i=0; i<argv_size; i++) | for(int i=0; i<argv_size; i++) |
| Line 429 from http://www.apache.org/websrc/cvsweb | Line 500 from http://www.apache.org/websrc/cvsweb |
| write(pipe_write, in_cstr, in.length()); | write(pipe_write, in_cstr, in.length()); |
| } | } |
| close(pipe_write); | close(pipe_write); |
| read_pipe(result.out, pipe_read, String::L_AS_IS); | read_pipe(result.out, pipe_read); |
| close(pipe_read); | close(pipe_read); |
| read_pipe(result.err, pipe_err, String::L_TAINTED); | read_pipe(result.err, pipe_err, String::L_TAINTED); |
| close(pipe_err); | close(pipe_err); |
| result.status=get_exit_status(pid); // negative may mean "-errno[execl()]" | result.status=get_exit_status(pid); // negative may mean "-errno[execl()]" |
| } else | } else { |
| const char* str=strerror(errno); | |
| throw Exception(0, | throw Exception(0, |
| &file_spec, | &file_spec, |
| "%s error: %s (%d)", pid<0?"fork":"pipe", strerror(errno), errno); | "%s error: %s (%d)", pid<0?"fork":"pipe", str?str:"<unknown>", errno); |
| } | |
| #endif | #endif |
| return result; | return result; |