7fb90fb89b
The getcwd syscall (so far?) can only handle path up to one page in size. There is no limit about directory hierarchy depth, though, and the POSIX getcwd is supposed to handle this. In that case fall back to the generic getcwd. Additionally, optimize the generic getcwd to use openat when possible to change the asymptotic performance from O(N^2) to O(n).
38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
#ifndef _DIRENT_H
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# include <dirstream.h>
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# include <dirent/dirent.h>
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# include <sys/stat.h>
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# include <stdbool.h>
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/* Now define the internal interfaces. */
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extern DIR *__opendir (__const char *__name);
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extern DIR *__fdopendir (int __fd);
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extern int __closedir (DIR *__dirp);
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extern struct dirent *__readdir (DIR *__dirp);
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extern struct dirent64 *__readdir64 (DIR *__dirp);
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extern int __readdir_r (DIR *__dirp, struct dirent *__entry,
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struct dirent **__result);
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extern int __readdir64_r (DIR *__dirp, struct dirent64 *__entry,
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struct dirent64 **__result);
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extern int __scandir64 (__const char * __dir,
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struct dirent64 *** __namelist,
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int (*__selector) (__const struct dirent64 *),
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int (*__cmp) (__const struct dirent64 **,
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__const struct dirent64 **));
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extern __ssize_t __getdents (int __fd, char *__buf, size_t __nbytes)
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internal_function;
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extern __ssize_t __getdents64 (int __fd, char *__buf, size_t __nbytes)
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internal_function;
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extern int __alphasort64 (const struct dirent64 **a, const struct dirent64 **b)
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__attribute_pure__;
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extern int __versionsort64 (const struct dirent64 **a,
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const struct dirent64 **b)
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__attribute_pure__;
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extern DIR *__alloc_dir (int fd, bool close_fd, int flags,
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const struct stat64 *statp)
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internal_function;
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libc_hidden_proto (rewinddir)
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#endif
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