55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/*
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* Copyright (c) 2011, 2012, 2013, 2014 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* stdio/fdio_install_path.c
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* Opens a FILE from a path.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "fdio.h"
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bool fdio_install_path(FILE* fp, const char* path, const char* mode)
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{
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int mode_flags = fparsemode(mode);
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if ( mode_flags < 0 )
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return false;
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if ( !(mode_flags & (FILE_MODE_READ | FILE_MODE_WRITE)) )
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return errno = EINVAL, false;
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int open_flags = 0;
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if ( mode_flags & FILE_MODE_READ ) open_flags |= O_READ;
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if ( mode_flags & FILE_MODE_WRITE ) open_flags |= O_WRITE;
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if ( mode_flags & FILE_MODE_APPEND ) open_flags |= O_APPEND;
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if ( mode_flags & FILE_MODE_CREATE ) open_flags |= O_CREATE;
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if ( mode_flags & FILE_MODE_TRUNCATE ) open_flags |= O_TRUNC;
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if ( mode_flags & FILE_MODE_EXCL ) open_flags |= O_EXCL;
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if ( mode_flags & FILE_MODE_CLOEXEC ) open_flags |= O_CLOEXEC;
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int fd = open(path, open_flags, 0666);
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if ( fd < 0 )
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return false;
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if ( !fdio_install_fd(fp, fd, mode) )
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return close(fd), false;
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return true;
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}
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