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.\" the source, must acknowledge the copyright and authors of this work.
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readlinkat \- read value of a symbolic link relative to
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a directory file descriptor
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.B #include <fcntl.h> /* Definition of AT_* constants */
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.BI "int readlinkat(int " dirfd ", const char *" pathname ,
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.BI " char *" buf ", size_t " bufsiz );