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27 lines
617 B
27 lines
617 B
#include <dirent.h>
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#include <errno.h>
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#include <stddef.h>
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#include "__dirent.h"
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#include "syscall.h"
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typedef char dirstream_buf_alignment_check[1-2*(int)(
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offsetof(struct __dirstream, buf) % sizeof(off_t))];
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struct dirent *readdir(DIR *dir)
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{
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struct dirent *de;
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if (dir->buf_pos >= dir->buf_end) {
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int len = __syscall(SYS_getdents, dir->fd, dir->buf, sizeof dir->buf);
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if (len <= 0) {
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if (len < 0 && len != -ENOENT) errno = -len;
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return 0;
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}
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dir->buf_end = len;
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dir->buf_pos = 0;
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}
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de = (void *)(dir->buf + dir->buf_pos);
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dir->buf_pos += de->d_reclen;
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dir->tell = de->d_off;
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return de;
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}
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