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rewinddir(3c) [opensolaris man page]

rewinddir(3C)						   Standard C Library Functions 					     rewinddir(3C)

NAME
rewinddir - reset position of directory stream to the beginning of a directory SYNOPSIS
#include <sys/types.h> #include <dirent.h> void rewinddir(DIR *dirp); DESCRIPTION
The rewinddir() function resets the position of the directory stream to which dirp refers to the beginning of the directory. It also causes the directory stream to refer to the current state of the corresponding directory, as a call to opendir(3C) would have done. If dirp does not refer to a directory stream, the effect is undefined. After a call to the fork(2) function, either the parent or child (but not both) may continue processing the directory stream using read- dir(3C), rewinddir() or seekdir(3C). If both the parent and child processes use these functions, the result is undefined. RETURN VALUES
The rewinddir() function does not return a value. ERRORS
No errors are defined. USAGE
The rewinddir() function should be used in conjunction with opendir(), readdir(), and closedir(3C) to examine the contents of the direc- tory. This method is recommended for portability. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
fork(2), closedir(3C), opendir(3C), readdir(3C), seekdir(3C), attributes(5), standards(5) SunOS 5.11 14 Aug 2002 rewinddir(3C)

Check Out this Related Man Page

DIRECTORY(3)						     Library Functions Manual						      DIRECTORY(3)

NAME
opendir, readdir, telldir, seekdir, rewinddir, closedir - directory operations SYNOPSIS
#include <sys/types.h> #include <sys/dir.h> DIR *opendir(filename) char *filename; struct direct *readdir(dirp) DIR *dirp; long telldir(dirp) DIR *dirp; seekdir(dirp, loc) DIR *dirp; long loc; rewinddir(dirp) DIR *dirp; closedir(dirp) DIR *dirp; DESCRIPTION
Opendir opens the directory named by filename and associates a directory stream with it. Opendir returns a pointer to be used to identify the directory stream in subsequent operations. The pointer NULL is returned if filename cannot be accessed, or if it cannot malloc(3) enough memory to hold the whole thing. Readdir returns a pointer to the next directory entry. It returns NULL upon reaching the end of the directory or detecting an invalid seekdir operation. Telldir returns the current location associated with the named directory stream. Seekdir sets the position of the next readdir operation on the directory stream. The new position reverts to the one associated with the directory stream when the telldir operation was performed. Values returned by telldir are good only for the lifetime of the DIR pointer from which they are derived. If the directory is closed and then reopened, the telldir value may be invalidated due to undetected direc- tory compaction. It is safe to use a previous telldir value immediately after a call to opendir and before any calls to readdir. Rewinddir resets the position of the named directory stream to the beginning of the directory. Closedir closes the named directory stream and frees the structure associated with the DIR pointer. Sample code which searchs a directory for entry ``name'' is: len = strlen(name); dirp = opendir("."); for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) if (dp->d_namlen == len && !strcmp(dp->d_name, name)) { closedir(dirp); return FOUND; } closedir(dirp); return NOT_FOUND; SEE ALSO
open(2), close(2), read(2), lseek(2), dir(5) 4.2 Berkeley Distribution September 24, 1985 DIRECTORY(3)

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