--- parser3/src/main/pa_exec.C 2003/01/29 12:02:23 1.48.2.3 +++ parser3/src/main/pa_exec.C 2003/03/27 15:45:36 1.48.2.18.2.13 @@ -1,20 +1,19 @@ /** @file Parser: program executing for different OS-es. - Copyright(c) 2000,2001, 2003 ArtLebedev Group(http://www.artlebedev.com) + Copyright(c) 2000,2001-2003 ArtLebedev Group(http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) @todo setrlimit */ -static const char* IDENT_EXEC_C="$Date: 2003/01/29 12:02:23 $"; +static const char* IDENT_EXEC_C="$Date: 2003/03/27 15:45:36 $"; #include "pa_config_includes.h" #include "pa_exec.h" #include "pa_exception.h" #include "pa_common.h" -#include "pa_value_includes.h" #ifdef WIN32 # include @@ -112,19 +111,19 @@ error: return result; } -static void read_pipe(Pool& pool, StringPtr result, HANDLE hOutRead, const char *file_spec, - String::Untaint_lang lang){ +static void read_pipe(String& result, HANDLE hOutRead, String::Language lang){ while(true) { - char *buf=new(pool) char[MAX_STRING]; + char *buf=new(PointerFreeGC) char[MAX_STRING]; unsigned long size; - if(!ReadFile(hOutRead, buf, MAX_STRING, &size, NULL) || !size) + if(!ReadFile(hOutRead, buf, MAX_STRING-1, &size, NULL) || !size) break; - result->APPEND(buf, size, lang, file_spec, 0); - } + buf[size]=0; + result.append_help_length(buf, size, lang); + } } -static CharPtr buildCommand(CharPtr file_spec_cstr, const Array& argv) { - CharPtr result=file_spec_cstr; +static const char* buildCommand(const char* file_spec_cstr, const ArrayString& argv) { + const char* result=file_spec_cstr; if(FILE *f=fopen(file_spec_cstr, "r")) { try { char buf[MAX_STRING]; @@ -132,7 +131,7 @@ static CharPtr buildCommand(CharPtr file if(size>2) { buf[size]=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 begin++; if(char *end=strchr(begin, '\n')) { @@ -150,7 +149,7 @@ static CharPtr buildCommand(CharPtr file } { // appending argv String string(result); - for(int i=0; istring << key << "=" << value; + info->string.append_help_length("", 1, String::L_AS_IS); // zero byte #else - String string; - string << key << "=" << value; + StringBody body; + body << key << "=" << value; - **env=string.cstr(*info->pool, String::UL_UNSPECIFIED); (*env)++; + *(info->env_ref++)=body.cstrm(); #endif } /// @todonow unix part to smart_ptr -int pa_exec(Pool& pool, +PA_exec_result pa_exec( bool forced_allow, - ConstStringPtr file_spec, - HashStringString& env, - Array& argv, - ConstStringPtr in, StringPtr out, StringPtr err) { + const String& file_spec, + const HashStringString* env, + const ArrayString& argv, + String& in) { + PA_exec_result result; + #ifdef NO_PA_EXECS if(!forced_allow) throw Exception("parser.runtime", - file_spec, + &file_spec, "parser execs are disabled [recompile parser without --disable-execs configure option]"); #endif + // execve needs non const + char* file_spec_cstr=file_spec.cstrm(String::L_FILE_SPEC); #ifdef WIN32 PROCESS_INFORMATION pi; HANDLE hInWrite, hOutRead, hErrRead; - CharPtr file_spec_cstr=file_spec->cstr(String::UL_FILE_SPEC); - CharPtr cmd=buildCommand(file_spec_cstr, argv); - CharPtr env_cstr(0); - { // env + const char* cmd=buildCommand(file_spec.cstr(String::L_FILE_SPEC), argv); + char* env_cstr; + if(env) { String string; - env.for_each(append_env_pair, &string); - env_cstr=string.cstr(String::UL_UNSPECIFIED); + Append_env_pair_info info(string); + env->for_each(append_env_pair, &info); + env_cstr=info.string.cstrm(String::L_UNSPECIFIED); } if(DWORD error=CreateHiddenConsoleProcess(cmd, env_cstr, &pi, &hInWrite, &hOutRead, &hErrRead)) { char szErrorDesc[MAX_STRING]; - char *param="the file you tried to run"; + const char* param="the file you tried to run"; size_t error_size=FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_ARGUMENT_ARRAY , NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), - szErrorDesc, sizeof(szErrorDesc), ¶m); + szErrorDesc, sizeof(szErrorDesc), (va_list *)¶m); if(error_size>3) // ".\r\n" szErrorDesc[error_size-3]=0; throw Exception(0, - file_spec, + &file_spec, "exec failed - %s (%ld). Consider adding shbang line (#!x:\\interpreter\\command line)", error_size?szErrorDesc:"", (long)error); } else { - CharPtr in_cstr=in->cstr(); + const char* in_cstr=in.cstr(); DWORD written_size; - WriteFile(hInWrite, in_cstr, in->size(), &written_size, NULL); + WriteFile(hInWrite, in_cstr, in.length(), &written_size, NULL); // EOF for stupid text reads // normally they should read CONTENT_LENGTH bytes, // without this char WriteFile(hInWrite, "\x1A", 1, &written_size, NULL); CloseHandle(hInWrite); - read_pipe(pool, out, hOutRead, file_spec_cstr, String::UL_AS_IS); + read_pipe(result.out, hOutRead, String::L_AS_IS); CloseHandle(hOutRead); - read_pipe(pool, err, hErrRead, file_spec_cstr, String::UL_TAINTED); + read_pipe(result.err, hErrRead, String::L_TAINTED); CloseHandle(hErrRead); /* from http://www.apache.org/websrc/cvsweb.cgi/apache-1.3/src/main/util_script.c?rev=1.151&content-type=text/vnd.viewcvs-markup @@ -378,16 +384,15 @@ from http://www.apache.org/websrc/cvsweb #else int pipe_write, pipe_read, pipe_err; - char *file_spec_cstr=file_spec.cstr(String::UL_FILE_SPEC); #ifdef PA_SAFE_MODE if(!forced_allow) { struct stat finfo; if(stat(file_spec_cstr, &finfo)!=0) throw Exception("file.missing", - &file_spec, - "stat failed: %s (%d), actual filename '%s'", - strerror(errno), errno, file_spec_cstr); + &file_spec, + "stat failed: %s (%d), actual filename '%s'", + strerror(errno), errno, file_spec_cstr); if(finfo.st_uid/*foreign?*/!=geteuid() && finfo.st_gid/*foreign?*/!=getegid()) @@ -398,26 +403,25 @@ from http://www.apache.org/websrc/cvsweb } #endif - char *argv_cstrs[1+10+1]={file_spec_cstr, 0}; - if(argv) { - const int argv_size=argv->size(); - const int argv_max=sizeof(argv_cstrs)/sizeof(argv_cstrs[0])-1-1; - if(argv_size>argv_max) - throw Exception("parser.runtime", - &file_spec, - "too many arguments (%d > max %d)", argv_size, argv_max); - for(int i=0; iget_string(i)->cstr(); - argv_cstrs[1+argv_size]=0; - } - char **env_cstrs=0; + char* argv_cstrs[1+10+1]={file_spec_cstr, 0}; + const int argv_size=argv.count(); + const int argv_max=sizeof(argv_cstrs)/sizeof(argv_cstrs[0])-1-1; + if(argv_size>argv_max) + throw Exception("parser.runtime", + &file_spec, + "too many arguments (%d > max %d)", argv_size, argv_max); + for(int i=0; icstrm(); + argv_cstrs[1+argv_size]=0; + + char **env_cstrs; if(env) { - env_cstrs= - (char **)env->pool().malloc(sizeof(char *)*(env->size()+1/*0*/)); - char **env_ref=env_cstrs; - env->for_each(append_env_pair, &env_ref); - *env_ref=0; - } + env_cstrs=new(PointerFreeGC) char *[env->count()+1/*0*/]; + Append_env_pair_info info={env_cstrs}; + env->for_each(append_env_pair, &info); + *info.env_ref=0; + } else + env_cstrs=0; pid_t pid=execve_piped( file_spec_cstr, @@ -425,21 +429,22 @@ from http://www.apache.org/websrc/cvsweb &pipe_write, &pipe_read, &pipe_err); if(pid>0) { // in child - const char *in_cstr=in.cstr(); - if(*in_cstr) // there is some in data - write(pipe_write, in_cstr, in.size()); + if(in.length()) {// there is some in data + const char* in_cstr=in.cstr(); + write(pipe_write, in_cstr, in.length()); + } close(pipe_write); - read_pipe(out, pipe_read, file_spec_cstr, String::UL_AS_IS); + read_pipe(result.out, pipe_read, String::L_AS_IS); close(pipe_read); - read_pipe(err, pipe_err, file_spec_cstr, String::UL_TAINTED); + read_pipe(result.err, pipe_err, String::L_TAINTED); close(pipe_err); - return get_exit_status(pid); // negative may mean "-errno[execl()]" + result.status=get_exit_status(pid); // negative may mean "-errno[execl()]" } else throw Exception(0, &file_spec, "%s error: %s (%d)", pid<0?"fork":"pipe", strerror(errno), errno); #endif - return 0; + return result; }