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49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/* (C) 2008 Philippe Vachon <philippe@cowpig.ca>
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* Licensed under the GNU General Public License v2
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*/
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#include <types.h>
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#include <ciloio.h>
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/* Platform-specific file I/O operations */
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#include <platio.h>
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struct file cilo_open(const char *filename)
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{
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struct file fp;
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if (!platio_find_file(filename)) {
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fp.code = -1;
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return fp;
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}
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platio_file_open(&fp, filename);
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return fp;
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}
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int32_t cilo_read(void *pbuf, uint32_t size, uint32_t nmemb, struct file *fp)
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{
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return platio_read(pbuf, size, nmemb, fp);
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}
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int32_t cilo_seek(struct file *fp, uint32_t offset, uint8_t whence)
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{
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switch (whence) {
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case SEEK_SET:
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if (offset > fp->file_len) fp->file_pos = fp->file_len;
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else fp->file_pos = offset;
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break;
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case SEEK_CUR:
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if (offset + fp->file_pos > fp->file_len) fp->file_pos = fp->file_len;
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else fp->file_pos += offset;
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break;
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case SEEK_END:
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fp->file_pos = fp->file_len;
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break;
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default:
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return 0;
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}
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return 0;
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}
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