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/*
* Copyright (c) 2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <ldo/file.h>
/*
* Open a file and return an LDO file
* handle.
*
* @filename: Path of file.
* @flags: O_*
*/
struct ldo_file *
ldo_open(const char *filename, int flags)
{
struct stat sb;
struct ldo_file *lfp = NULL;
struct ldo_buffer *bp;
size_t file_size;
int retval;
if (lstat(filename, &sb) < 0) {
fprintf(stderr, "failed to stat '%s'\n", filename);
perror("lstat");
return NULL;
}
if ((lfp = malloc(sizeof(*lfp))) == NULL) {
fprintf(stderr, "lfp malloc failure (open %s)\n", filename);
return NULL;
}
if ((retval = open(filename, flags)) < 0) {
fprintf(stderr, "failed to open %s\n", filename);
perror("open");
free(lfp);
return NULL;
}
lfp->fd = retval;
lfp->file_size = sb.st_size;
lfp->data = ldo_allocz(lfp->file_size);
if (lfp->data == NULL) {
close(lfp->fd);
free(lfp);
return NULL;
}
bp = lfp->data;
read(lfp->fd, bp->data, lfp->file_size);
return lfp;
}
void
ldo_close(struct ldo_file *lfp)
{
close(lfp->fd);
ldo_free(lfp->data);
free(lfp);
}
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