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Make sure prodos.h structs are Packed

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Use __attribute__((packed)) for gcc, so make sure these
structures are byte aligned

Signed-off-by: Michel Pollet <buserror@gmail.com>
This commit is contained in:
Michel Pollet 2020-06-30 14:17:43 +01:00
parent a1b3cf67a3
commit 9a02196605
1 changed files with 12 additions and 6 deletions
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18
src/prodos.h
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@ -19,25 +19,31 @@
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef __linux__
#define PACKED __attribute__((packed))
#else
#define PACKED
#endif
typedef struct l2byte_st L2byte;
struct l2byte_st {
byte low;
byte hi;
};
} PACKED;
typedef struct l3byte_st L3byte;
struct l3byte_st {
byte low;
byte hi;
byte higher;
};
} PACKED;
typedef L2byte Block;
typedef struct pro_time_st Pro_time;
struct pro_time_st {
byte times[4];
};
} PACKED;
typedef struct file_entry_st File_entry;
struct file_entry_st {
@ -63,7 +69,7 @@ struct file_entry_st {
Pro_time last_mod;
/* 0x25 */
Block header_pointer;
};
} PACKED;
STRUCT(Vol_hdr) {
/* 0x4 */
@ -86,14 +92,14 @@ STRUCT(Vol_hdr) {
Block bit_map;
/* 0x29 */
L2byte total_blocks;
};
} PACKED;
typedef struct directory_st Directory;
struct directory_st {
Block prev_blk;
Block next_blk;
File_entry file_entries[13];
};
} PACKED;
STRUCT(ProDisk) {
int fd;