ish/fs/path.h
2018-01-21 17:24:32 -08:00

26 lines
898 B
C

#ifndef PATH_H
#define PATH_H
#define AT_PWD (struct fd *) -2
// Normalizes the path specified and writes the result into the out buffer.
//
// Normalization means:
// - prepending the current or root directory
// - converting multiple slashes into one
// - resolving . and ..
// - resolving symlinks, skipping the last path component if the follow_links
// argument is true
// The result will always begin with a slash or be empty.
//
// If the normalized path plus the null terminator would be longer than
// MAX_PATH, _ENAMETOOLONG is returned. The out buffer is expected to be at
// least MAX_PATH in size.
//
// at is the file descriptor to use as a base to interpret relative paths. If
// at is AT_PWD, uses current->pwd (with appropriate locking).
int path_normalize(struct fd *at, const char *path, char *out, bool follow_links);
bool path_is_normalized(const char *path);
#endif