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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140//// spawnlp.cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//// Defines the -lp and -lpe flavors of the _exec() and _spawn() functions. See// the comments in spawnv.cpp for details of the various flavors of these// functions.//#include <corecrt_internal.h>#include <corecrt_internal_traits.h>#include <stddef.h>#include <process.h>#include <stdarg.h>
template <typename Character>static intptr_t __cdecl common_spawnlp( bool const pass_environment, int const mode, Character const* const file_name, Character const* const arguments, va_list varargs ) throw(){ typedef __crt_char_traits<Character> traits;
_VALIDATE_RETURN(file_name != nullptr, EINVAL, -1); _VALIDATE_RETURN(file_name[0] != '\0', EINVAL, -1); _VALIDATE_RETURN(arguments != nullptr, EINVAL, -1); _VALIDATE_RETURN(arguments[0] != '\0', EINVAL, -1);
Character* arguments_buffer[64]; Character** const captured_arguments = traits::capture_argv( &varargs, arguments, &arguments_buffer[0], 64);
_VALIDATE_RETURN_NOEXC(captured_arguments != nullptr, ENOMEM, -1);
__crt_unique_heap_ptr<Character*> const captured_arguments_cleanup( captured_arguments == arguments_buffer ? nullptr : captured_arguments);
Character const* const* const environment = pass_environment ? va_arg(varargs, Character const* const*) : nullptr;
return traits::tspawnvpe(mode, file_name, captured_arguments, environment);}
extern "C" intptr_t _execlp( char const* const file_name, char const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(false, _P_OVERLAY, file_name, arguments, varargs);}
extern "C" intptr_t _execlpe( char const* const file_name, char const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(true, _P_OVERLAY, file_name, arguments, varargs);}
extern "C" intptr_t _spawnlp( int const mode, char const* const file_name, char const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(false, mode, file_name, arguments, varargs);}
extern "C" intptr_t _spawnlpe( int const mode, char const* const file_name, char const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(true, mode, file_name, arguments, varargs);}
extern "C" intptr_t _wexeclp( wchar_t const* const file_name, wchar_t const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(false, _P_OVERLAY, file_name, arguments, varargs);}
extern "C" intptr_t _wexeclpe( wchar_t const* const file_name, wchar_t const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(true, _P_OVERLAY, file_name, arguments, varargs);}
extern "C" intptr_t _wspawnlp( int const mode, wchar_t const* const file_name, wchar_t const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(false, mode, file_name, arguments, varargs);}
extern "C" intptr_t _wspawnlpe( int const mode, wchar_t const* const file_name, wchar_t const* const arguments, ...){ va_list varargs; va_start(varargs, arguments); return common_spawnlp(true, mode, file_name, arguments, varargs);}