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--- ./usr/include/bits/struct_file.h.orig 2019-06-10 09:40:35.872857650 +1000
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+++ ./usr/include/bits/struct_file.h 2019-06-10 09:55:10.890308649 +1000
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@@ -31,14 +31,79 @@
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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+#if defined(__LP64__)
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+struct __sbuf {
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+ unsigned char* _base;
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+ size_t _size;
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+};
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+#else
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+struct __sbuf {
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+ unsigned char *_base;
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+ int _size;
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+};
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+#endif
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+#if defined(__LP64__)
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+typedef int64_t _struct_file_off_t;
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+#else
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+typedef __kernel_off_t _struct_file_off_t;
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+#endif
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+
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/** The opaque structure implementing `FILE`. Do not make any assumptions about its content. */
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struct __sFILE {
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+ unsigned char *_p; /* current position in (some) buffer */
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+ int _r; /* read space left for getc() */
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+ int _w; /* write space left for putc() */
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#if defined(__LP64__)
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- char __private[152];
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+ int _flags; /* flags, below; this FILE is free if 0 */
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+ int _file; /* fileno, if Unix descriptor, else -1 */
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#else
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- char __private[84];
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+ short _flags; /* flags, below; this FILE is free if 0 */
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+ short _file; /* fileno, if Unix descriptor, else -1 */
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#endif
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-} __attribute__((aligned(sizeof(void*))));
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+ struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
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+ int _lbfsize; /* 0 or -_bf._size, for inline putc */
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+
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+ /* operations */
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+ void *_cookie; /* cookie passed to io functions */
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+ int (*_close)(void *);
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+ int (*_read)(void *, char *, int);
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+ _struct_file_off_t (*_seek)(void *, _struct_file_off_t, int);
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+ int (*_write)(void *, const char *, int);
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+
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+ /* extension data, to avoid further ABI breakage */
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+ struct __sbuf _ext;
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+ /* data for long sequences of ungetc() */
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+ unsigned char *_up; /* saved _p when _p is doing ungetc data */
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+ int _ur; /* saved _r when _r is counting ungetc data */
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+
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+ /* tricks to meet minimum requirements even when malloc() fails */
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+ unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
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+ unsigned char _nbuf[1]; /* guarantee a getc() buffer */
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+
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+ /* separate buffer for fgetln() when line crosses buffer boundary */
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+ struct __sbuf _lb; /* buffer for fgetln() */
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+
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+ /* Unix stdio files get aligned to block boundaries on fseek() */
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+ int _blksize; /* stat.st_blksize (may be != _bf._size) */
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+ _struct_file_off_t _offset; /* current lseek offset */
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+};
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+#define __SLBF 0x0001 /* line buffered */
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+#define __SNBF 0x0002 /* unbuffered */
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+#define __SRD 0x0004 /* OK to read */
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+#define __SWR 0x0008 /* OK to write */
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+ /* RD and WR are never simultaneously asserted */
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+#define __SRW 0x0010 /* open for reading & writing */
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+#define __SEOF 0x0020 /* found EOF */
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+#define __SERR 0x0040 /* found error */
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+#define __SMBF 0x0080 /* _buf is from malloc */
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+#define __SAPP 0x0100 /* fdopen()ed in append mode */
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+#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
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+#define __SOPT 0x0400 /* do fseek() optimization */
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+#define __SNPT 0x0800 /* do not do fseek() optimization */
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+#define __SOFF 0x1000 /* set iff _offset is in fact correct */
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+#define __SMOD 0x2000 /* true => fgetln modified _p text */
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+#define __SALC 0x4000 /* allocate string space dynamically */
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+#define __SIGN 0x8000 /* ignore this file in _fwalk */
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__END_DECLS
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