diff options
Diffstat (limited to 'newlib/libc/sys/linux/scandir64.c')
| -rw-r--r-- | newlib/libc/sys/linux/scandir64.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/newlib/libc/sys/linux/scandir64.c b/newlib/libc/sys/linux/scandir64.c deleted file mode 100644 index b21b42342..000000000 --- a/newlib/libc/sys/linux/scandir64.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright (c) 1983 Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)scandir.c 5.10 (Berkeley) 2/23/91"; -#endif /* LIBC_SCCS and not lint */ - -/* - * Scan the directory dirname calling select to make a list of selected - * directory entries then sort using qsort and compare routine dcomp. - * Returns the number of entries and a pointer to a list of pointers to - * struct dirent64 (through namelist). Returns -1 if there were any errors. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <dirent.h> -#include <stdlib.h> -#include <string.h> -#include <sys/lock.h> - -extern struct dirent64 *__readdir64 (DIR *); - -/* - * The DIRSIZ macro gives the minimum record length which will hold - * the directory entry. This requires the amount of space in struct dirent64 - * without the d_name field, plus enough space for the name with a terminating - * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary. - */ -#undef DIRSIZ -#ifdef _DIRENT_HAVE_D_NAMLEN -#define DIRSIZ(dp) \ - ((sizeof (struct dirent64) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3)) -#else -#define DIRSIZ(dp) \ - ((sizeof (struct dirent64) - (MAXNAMLEN+1)) + ((strlen((dp)->d_name)+1 + 3) &~ 3)) -#endif - -#ifndef __P -#define __P(args) () -#endif - -int -scandir64(dirname, namelist, select, dcomp) - const char *dirname; - struct dirent64 ***namelist; - int (*select) __P((struct dirent64 *)); - int (*dcomp) __P((const void *, const void *)); -{ - register struct dirent64 *d, *p, **names; - register size_t nitems; - struct stat64 stb; - long arraysz; - DIR *dirp; - - if ((dirp = opendir(dirname)) == NULL) - return(-1); -#ifdef HAVE_DD_LOCK - __lock_acquire_recursive(dirp->dd_lock); -#endif - if (fstat64(dirp->dd_fd, &stb) < 0) { -#ifdef HAVE_DD_LOCK - __lock_release_recursive(dirp->dd_lock); -#endif - return(-1); - } - - /* - * estimate the array size by taking the size of the directory file - * and dividing it by a multiple of the minimum size entry. - */ - arraysz = (stb.st_size / 24); - names = (struct dirent64 **)malloc(arraysz * sizeof(struct dirent64 *)); - if (names == NULL) { -#ifdef HAVE_DD_LOCK - __lock_release_recursive(dirp->dd_lock); -#endif - return(-1); - } - - nitems = 0; - while ((d = __readdir64(dirp)) != NULL) { - if (select != NULL && !(*select)(d)) - continue; /* just selected names */ - /* - * Make a minimum size copy of the data - */ - p = (struct dirent64 *)malloc(DIRSIZ(d)); - if (p == NULL) { -#ifdef HAVE_DD_LOCK - __lock_release_recursive(dirp->dd_lock); -#endif - return(-1); - } - p->d_ino = d->d_ino; - p->d_reclen = d->d_reclen; -#ifdef _DIRENT_HAVE_D_NAMLEN - p->d_namlen = d->d_namlen; - bcopy(d->d_name, p->d_name, p->d_namlen + 1); -#else - strcpy(p->d_name, d->d_name); -#endif - /* - * Check to make sure the array has space left and - * realloc the maximum size. - */ - if (++nitems >= arraysz) { - if (fstat64(dirp->dd_fd, &stb) < 0) { -#ifdef HAVE_DD_LOCK - __lock_release_recursive(dirp->dd_lock); -#endif - return(-1); /* just might have grown */ - } - arraysz = stb.st_size / 12; - names = (struct dirent64 **)realloc((char *)names, - arraysz * sizeof(struct dirent64 *)); - if (names == NULL) { -#ifdef HAVE_DD_LOCK - __lock_release_recursive(dirp->dd_lock); -#endif - return(-1); - } - } - names[nitems-1] = p; - } - closedir(dirp); - if (nitems && dcomp != NULL) - qsort(names, nitems, sizeof(struct dirent64 *), dcomp); - *namelist = names; -#ifdef HAVE_DD_LOCK - __lock_release_recursive(dirp->dd_lock); -#endif - return(nitems); -} - -/* - * Alphabetic order comparison routine for those who want it. - */ -int -alphasort64(d1, d2) - const struct dirent64 **d1; - const struct dirent64 **d2; -{ - return(strcmp((*d1)->d_name, (*d2)->d_name)); -} - |