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diff --git a/man3/scandir.3 b/man3/scandir.3 deleted file mode 100644 index eeab256..0000000 --- a/man3/scandir.3 +++ /dev/null @@ -1,310 +0,0 @@ -'\" t -.\" Copyright (C) 1993 David Metcalfe (david@prism.demon.co.uk) -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.\" References consulted: -.\" Linux libc source code -.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) -.\" 386BSD man pages -.\" Modified Sat Jul 24 18:26:16 1993 by Rik Faith (faith@cs.unc.edu) -.\" Modified Thu Apr 11 17:11:33 1996 by Andries Brouwer (aeb@cwi.nl): -.\" Corrected type of compar routines, as suggested by -.\" Miguel Barreiro (enano@avalon.yaix.es). Added example. -.\" Modified Sun Sep 24 20:15:46 2000 by aeb, following Petter Reinholdtsen. -.\" Modified 2001-12-26 by aeb, following Joey. Added versionsort. -.\" -.\" The pieces on scandirat(3) were copyright and licensed as follows. -.\" -.\" Copyright (c) 2012, Mark R. Bannister <cambridge@users.sourceforge.net> -.\" based on text in mkfifoat.3 Copyright (c) 2006, Michael Kerrisk -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.TH scandir 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -scandir, scandirat, alphasort, versionsort \- scan -a directory for matching entries -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include <dirent.h> -.P -.BI "int scandir(const char *restrict " dirp , -.BI " struct dirent ***restrict " namelist , -.BI " int (*" filter ")(const struct dirent *)," -.BI " int (*" compar ")(const struct dirent **," -.B " const struct dirent **));" -.P -.BI "int alphasort(const struct dirent **" a ", const struct dirent **" b ); -.BI "int versionsort(const struct dirent **" a ", const struct dirent **" b ); -.P -.BR "#include <fcntl.h>" " /* Definition of AT_* constants */" -.B #include <dirent.h> -.P -.BI "int scandirat(int " dirfd ", const char *restrict " dirp , -.BI " struct dirent ***restrict " namelist , -.BI " int (*" filter ")(const struct dirent *)," -.BI " int (*" compar ")(const struct dirent **," -.B " const struct dirent **));" -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR scandir (), -.BR alphasort (): -.nf - /* Since glibc 2.10: */ _POSIX_C_SOURCE >= 200809L - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.P -.BR versionsort (): -.nf - _GNU_SOURCE -.fi -.P -.BR scandirat (): -.nf - _GNU_SOURCE -.fi -.SH DESCRIPTION -The -.BR scandir () -function scans the directory \fIdirp\fP, calling -\fIfilter\fP() on each directory entry. -Entries for which -\fIfilter\fP() returns nonzero are stored in strings allocated via -.BR malloc (3), -sorted using -.BR qsort (3) -with the comparison -function \fIcompar\fP(), and collected in array \fInamelist\fP -which is allocated via -.BR malloc (3). -If \fIfilter\fP is NULL, all entries are selected. -.P -The -.BR alphasort () -and -.BR versionsort () -functions can be used as the comparison function -.IR compar (). -The former sorts directory entries using -.BR strcoll (3), -the latter using -.BR strverscmp (3) -on the strings \fI(*a)\->d_name\fP and \fI(*b)\->d_name\fP. -.SS scandirat() -The -.BR scandirat () -function operates in exactly the same way as -.BR scandir (), -except for the differences described here. -.P -If the pathname given in -.I dirp -is relative, then it is interpreted relative to the directory -referred to by the file descriptor -.I dirfd -(rather than relative to the current working directory of -the calling process, as is done by -.BR scandir () -for a relative pathname). -.P -If -.I dirp -is relative and -.I dirfd -is the special value -.BR AT_FDCWD , -then -.I dirp -is interpreted relative to the current working -directory of the calling process (like -.BR scandir ()). -.P -If -.I dirp -is absolute, then -.I dirfd -is ignored. -.P -See -.BR openat (2) -for an explanation of the need for -.BR scandirat (). -.SH RETURN VALUE -The -.BR scandir () -function returns the number of directory entries -selected. -On error, \-1 is returned, with -.I errno -set to indicate the error. -.P -The -.BR alphasort () -and -.BR versionsort () -functions return an integer less than, equal to, -or greater than zero if the first argument is considered to be -respectively less than, equal to, or greater than the second. -.SH ERRORS -.TP -.B EBADF -.RB ( scandirat ()) -.I dirp -is relative but -.I dirfd -is neither -.B AT_FDCWD -nor a valid file descriptor. -.TP -.B ENOENT -The path in \fIdirp\fR does not exist. -.TP -.B ENOMEM -Insufficient memory to complete the operation. -.TP -.B ENOTDIR -The path in \fIdirp\fR is not a directory. -.TP -.B ENOTDIR -.RB ( scandirat ()) -.I dirp -is a relative pathname and -.I dirfd -is a file descriptor referring to a file other than a directory. -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR scandir (), -.BR scandirat () -T} Thread safety MT-Safe -T{ -.na -.nh -.BR alphasort (), -.BR versionsort () -T} Thread safety MT-Safe locale -.TE -.SH STANDARDS -.TP -.BR alphasort () -.TQ -.BR scandir () -POSIX.1-2008. -.TP -.BR versionsort () -.TQ -.BR scandirat () -GNU. -.SH HISTORY -.TP -.BR alphasort () -.TQ -.BR scandir () -4.3BSD, POSIX.1-2008. -.TP -.BR versionsort () -glibc 2.1. -.TP -.BR scandirat () -glibc 2.15. -.\" .P -.\" The functions -.\" .BR scandir () -.\" and -.\" .BR alphasort () -.\" are from 4.3BSD, and have been available under Linux since libc4. -.\" Libc4 and libc5 use the more precise prototype -.\" .sp -.\" .nf -.\" int alphasort(const struct dirent ** a, -.\" const struct dirent **b); -.\" .fi -.\" .sp -.\" but glibc 2.0 returns to the imprecise BSD prototype. -.SH NOTES -Since glibc 2.1, -.BR alphasort () -calls -.BR strcoll (3); -earlier it used -.BR strcmp (3). -.P -Before glibc 2.10, the two arguments of -.BR alphasort () -and -.BR versionsort () -were typed as -.IR "const void\ *" . -When -.BR alphasort () -was standardized in POSIX.1-2008, -the argument type was specified as the type-safe -.IR "const struct dirent\ **", -and glibc 2.10 changed the definition of -.BR alphasort () -(and the nonstandard -.BR versionsort ()) -to match the standard. -.SH EXAMPLES -The program below prints a list of the files in the current directory -in reverse order. -.\" -.SS Program source -\& -.\" SRC BEGIN (scandir.c) -.EX -#define _DEFAULT_SOURCE -#include <dirent.h> -#include <stdio.h> -#include <stdlib.h> -\& -int -main(void) -{ - struct dirent **namelist; - int n; -\& - n = scandir(".", &namelist, NULL, alphasort); - if (n == \-1) { - perror("scandir"); - exit(EXIT_FAILURE); - } -\& - while (n\-\-) { - printf("%s\en", namelist[n]\->d_name); - free(namelist[n]); - } - free(namelist); -\& - exit(EXIT_SUCCESS); -} -.EE -.\" SRC END -.SH SEE ALSO -.BR closedir (3), -.BR fnmatch (3), -.BR opendir (3), -.BR readdir (3), -.BR rewinddir (3), -.BR seekdir (3), -.BR strcmp (3), -.BR strcoll (3), -.BR strverscmp (3), -.BR telldir (3) |