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49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of LibMaxsi.
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LibMaxsi is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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LibMaxsi is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details.
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You should have received a copy of the GNU Lesser General Public License
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along with LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
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vexecle.cpp
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Loads a process image.
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*******************************************************************************/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <unistd.h>
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extern "C" int vexecle(const char* pathname, va_list args)
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{
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va_list iter;
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va_copy(iter, args);
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size_t numargs = 0;
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while ( va_arg(iter, const char*) ) { numargs++; }
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va_end(iter);
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numargs--; // envp
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char** argv = (char**) malloc(sizeof(char*) * (numargs+1));
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if ( !argv ) { return -1; }
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for ( size_t i = 0; i < numargs; i++ )
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{
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argv[i] = (char*) va_arg(args, const char*);
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}
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argv[numargs] = NULL;
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char* const* envp = va_arg(args, char* const*);
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int result = execve(pathname, argv, envp);
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free(argv);
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return result;
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}
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