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readlink — ?????ܥ??å????󥯤??ͤ??ɤ߼???

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Standard C Library (libc, -lc)

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<unistd.h> int readlink(const char *path, char *buf, int bufsiz)

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readlink() ?????ƥॳ?????ϡ? bufsiz ???????Ǥ????Хåե? buf ???˥????ܥ??å??????? path ?????Ƥ????֤??ޤ??? readlink() ?????ƥॳ?????? buf ???????? NUL ʸ?????ɲä??ޤ?????

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?ƤӽФ????????˴?λ???????硢?Хåե????????֤???ʸ???????֤??ޤ??? ???顼?????????????? -1 ???֤??????顼?????ɤ????????Х??ѿ? errno ?????ꤵ???ޤ???

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readlink() ?????ƥॳ?????ϼ??ξ????˼??Ԥ??ޤ?:

[ENOTDIR]

?ѥ??ι??????????˥ǥ??쥯?ȥ??ʳ??Τ??Τ??ޤޤ??Ƥ??ޤ???

[ENAMETOOLONG]

?ѥ?̾?ι??????Ǥ? 255 ʸ?????ۤ??Ƥ??뤫?? ?ޤ??ϥѥ?̾???Τ? 1023 ʸ?????ۤ??Ƥ??ޤ???

[ENOENT]

???ꤵ?줿?ե????뤬¸?ߤ??ޤ?????

[EACCES]

???ꤵ?줿?ѥ??ˤϡ??????????Ĥ????Ƥ??ʤ??ǥ??쥯?ȥ꤬?ޤޤ??Ƥ??ޤ???

[ELOOP]

?ѥ?̾???Ѵ??????Ȥ??˸??Ф??줿?????ܥ??å????󥯤?¿?????ޤ???

[EINVAL]

?????Υե????뤬?????ܥ??å????󥯤ǤϤ????ޤ?????

[EIO]

?ե????륷???ƥफ???ɤ߼????֤??????ϥ??顼??ȯ?????ޤ?????

[EFAULT]

buf ?????????ץ??????˳??????Ƥ??줿???ɥ쥹???֤??ϰϳ????ؤ??Ƥ??ޤ???

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lstat(2), stat(2), symlink(2), symlink(7)

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readlink() ?????ƥॳ?????? 4.2BSD ???о줷?ޤ?????