getdirentries getdents - get directory entries in a file system independent format
The data in the buffer is a series of Vt dirent structures each containing the following entries:
u_int32_t d_fileno; u_int16_t d_reclen; u_int8_t d_type; u_int8_t d_namlen; char d_name[MAXNAMELEN + 1]; /* see below */
The Fa d_fileno entry is a number which is unique for each distinct file in the file system. Files that are linked by hard links (see link(2)) have the same Fa d_fileno . The Fa d_reclen entry is the length, in bytes, of the directory record. The Fa d_type entry is the type of the file pointed to by the directory record. The file type values are defined in Fa <sys/dirent.h> . The Fa d_name entry contains a null terminated file name. The Fa d_namlen entry specifies the length of the file name excluding the null byte. Thus the actual size of Fa d_name may vary from 1 to MAXNAMELEN + 1.
Entries may be separated by extra space. The Fa d_reclen entry may be used as an offset from the start of a Fa dirent structure to the next structure, if any.
The actual number of bytes transferred is returned.
The current position pointer associated with
is set to point to the next block of entries.
The pointer may not advance by the number of bytes returned by
or getdents (.);
A value of zero is returned when the end of the directory has been reached.
system call writes the position of the block read into the location pointed to by Fa basep . Alternatively, the current position pointer may be set and retrieved by lseek(2). The current position pointer should only be set to a value returned by lseek(2), a value returned in the location pointed to by Fa basep Fn ( getdirentries only) or zero.
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Created 1996-2021 by Maxim Chirkov
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