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add macros for use with d_type extension field in dirent
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@ -34,6 +34,20 @@ int dirfd(DIR *);
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int alphasort(const struct dirent **, const struct dirent **);
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int scandir(const char *, struct dirent ***, int (*)(const struct dirent *), int (*)(const struct dirent **, const struct dirent **));
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#ifdef _GNU_SOURCE
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#define DT_UNKNOWN 0
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#define DT_FIFO 1
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#define DT_CHR 2
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#define DT_DIR 4
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#define DT_BLK 6
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#define DT_REG 8
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#define DT_LNK 10
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#define DT_SOCK 12
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#define DT_WHT 14
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#define IFTODT(x) ((x)>>12 & 017)
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#define DTTOIF(x) ((x)<<12)
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#endf
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#ifdef __cplusplus
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extern }
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#endif
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