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#define FDOP_CLOSE 1
#define FDOP_DUP2 2
#define FDOP_OPEN 3
#define FDOP_CHDIR 4
#define FDOP_FCHDIR 5
struct fdop {
struct fdop *next, *prev;
int cmd, fd, srcfd, oflag;
mode_t mode;
char path[];
};
#define malloc __libc_malloc
#define calloc __libc_calloc
#define realloc undef
#define free __libc_free
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