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#include <fcntl.h>
#include <string.h>
int __fmodeflags(const char *mode)
{
int flags;
if (strchr(mode, '+')) flags = O_RDWR;
else if (*mode == 'r') flags = O_RDONLY;
else flags = O_WRONLY;
if (strchr(mode, 'x')) flags |= O_EXCL;
if (strchr(mode, 'e')) flags |= O_CLOEXEC;
if (*mode != 'r') flags |= O_CREAT;
if (*mode == 'w') flags |= O_TRUNC;
if (*mode == 'a') flags |= O_APPEND;
return flags;
}
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