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#include <string.h>
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#include "cramfs_common.h"
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#include "../include/bitops.h"
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u32 u32_toggle_endianness(int big_endian, u32 what)
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uint32_t u32_toggle_endianness(int big_endian, uint32_t what)
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return big_endian == HOST_IS_BIG_ENDIAN ? what : swab32(what);
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super->fsid.crc = swab32(super->fsid.crc);
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super->fsid.edition = swab32(super->fsid.edition);
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super->fsid.blocks = swab32(super->fsid.blocks);
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super->fsid.files = swab32(super->fsid.files);
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super->fsid.files = swab32(super->fsid.files);
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void inode_toggle_endianness(int input_big_endian, int output_big_endian, struct cramfs_inode *inode_in, struct cramfs_inode *inode_out)
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void inode_toggle_endianness(int input_big_endian, int output_big_endian,
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struct cramfs_inode *inode_in,
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struct cramfs_inode *inode_out)
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if (input_big_endian == output_big_endian) {
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memmove(inode_out, inode_in, sizeof(*inode_out));
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unsigned char inode_out_buf[sizeof(*inode_in)];
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unsigned char *inode_in_buf = (unsigned char*)inode_in;
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inode_out_buf[1] = inode_in_buf[0];
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inode_out_buf[2] = inode_in_buf[3]; /* 16 bit: uid */
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inode_out_buf[3] = inode_in_buf[2];
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inode_out_buf[3] = inode_in_buf[2];
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inode_out_buf[4] = inode_in_buf[6]; /* 24 bit: size */
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inode_out_buf[5] = inode_in_buf[5];
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inode_out_buf[7] = inode_in_buf[7]; /* 8 bit: gid width */
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/* Stop the madness! Outlaw C bitfields! They are unportable and nasty!
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See for yourself what a mess this is: */
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* Stop the madness! Outlaw C bitfields! They are unportable
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* and nasty! See for yourself what a mess this is:
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if (output_big_endian) {
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inode_out_buf[ 8] = ( (inode_in_buf[ 8]&0x3F) << 2 ) |
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inode_out_buf[ 8] = ( (inode_in_buf[ 8]&0x3F) << 2 ) |
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( (inode_in_buf[11]&0xC0) >> 6 );
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inode_out_buf[ 9] = ( (inode_in_buf[11]&0x3F) << 2 ) |
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inode_out_buf[11] = ( (inode_in_buf[ 9]&0x3F) << 2 ) |
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( (inode_in_buf[ 8]&0xC0) >> 6 );
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inode_out_buf[ 8] = ( (inode_in_buf[ 8]&0xFD) >> 2 ) |
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inode_out_buf[ 8] = ( (inode_in_buf[ 8]&0xFD) >> 2 ) |
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( (inode_in_buf[11]&0x03) << 6 );
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inode_out_buf[ 9] = ( (inode_in_buf[11]&0xFD) >> 2 ) |
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inode_out_buf[ 9] = ( (inode_in_buf[11]&0xFD) >> 2 ) |
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( (inode_in_buf[10]&0x03) << 6 );
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inode_out_buf[10] = ( (inode_in_buf[10]&0xFD) >> 2 ) |
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inode_out_buf[10] = ( (inode_in_buf[10]&0xFD) >> 2 ) |
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( (inode_in_buf[ 9]&0x03) << 6 );
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inode_out_buf[11] = ( (inode_in_buf[ 9]&0xFD) >> 2 ) |
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inode_out_buf[11] = ( (inode_in_buf[ 9]&0xFD) >> 2 ) |
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( (inode_in_buf[ 8]&0x03) << 6 );
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memmove(inode_out, inode_out_buf, sizeof(*inode_out));
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void inode_to_host(int from_big_endian, struct cramfs_inode *inode_in, struct cramfs_inode *inode_out)
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void inode_to_host(int from_big_endian, struct cramfs_inode *inode_in,
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struct cramfs_inode *inode_out)
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inode_toggle_endianness(from_big_endian, HOST_IS_BIG_ENDIAN, inode_in, inode_out);
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inode_toggle_endianness(from_big_endian, HOST_IS_BIG_ENDIAN, inode_in,
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void inode_from_host(int to_big_endian, struct cramfs_inode *inode_in, struct cramfs_inode *inode_out)
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void inode_from_host(int to_big_endian, struct cramfs_inode *inode_in,
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struct cramfs_inode *inode_out)
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inode_toggle_endianness(HOST_IS_BIG_ENDIAN, to_big_endian, inode_in, inode_out);
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inode_toggle_endianness(HOST_IS_BIG_ENDIAN, to_big_endian, inode_in,