45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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execvpe.cpp
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Loads a process image.
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*******************************************************************************/
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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// Note that the only PATH variable in Sortix is the one used here.
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extern "C" int execvpe(const char* filename, char* const* argv,
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char* const* envp)
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{
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if ( strchr(filename, '/') )
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return execve(filename, argv, envp);
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size_t filenamelen = strlen(filename);
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const char* PATH = "/bin";
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size_t pathlen = strlen(PATH);
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char* pathname = (char*) malloc(filenamelen + 1 + pathlen + 1);
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if ( !pathname ) { return -1; }
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stpcpy(stpcpy(stpcpy(pathname, PATH), "/"), filename);
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int result = execve(pathname, argv, envp);
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free(pathname);
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return result;
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}
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