101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997
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* Sleepycat Software. All rights reserved.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)os_dir.c 10.13 (Sleepycat) 10/28/97";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#if HAVE_DIRENT_H
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# include <dirent.h>
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# define NAMLEN(dirent) strlen((dirent)->d_name)
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#else
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# define dirent direct
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# define NAMLEN(dirent) (dirent)->d_namlen
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# if HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# if HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# if HAVE_NDIR_H
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# include <ndir.h>
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# endif
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#endif
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#endif
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#include "db_int.h"
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#include "common_ext.h"
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/*
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* __os_dirlist --
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* Return a list of the files in a directory.
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*
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* PUBLIC: int __os_dirlist __P((const char *, char ***, int *));
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*/
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int
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__os_dirlist(dir, namesp, cntp)
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const char *dir;
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char ***namesp;
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int *cntp;
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{
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struct dirent *dp;
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DIR *dirp;
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int arraysz, cnt;
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char **names;
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if ((dirp = opendir(dir)) == NULL)
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return (errno);
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names = NULL;
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for (arraysz = cnt = 0; (dp = readdir(dirp)) != NULL; ++cnt) {
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if (cnt >= arraysz) {
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arraysz += 100;
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names = (char **)(names == NULL ?
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__db_malloc(arraysz * sizeof(names[0])) :
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__db_realloc(names, arraysz * sizeof(names[0])));
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if (names == NULL)
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goto nomem;
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}
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if ((names[cnt] = (char *)__db_strdup(dp->d_name)) == NULL)
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goto nomem;
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}
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(void)closedir(dirp);
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*namesp = names;
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*cntp = cnt;
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return (0);
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nomem: if (names != NULL)
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__os_dirfree(names, cnt);
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return (ENOMEM);
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}
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/*
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* __os_dirfree --
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* Free the list of files.
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*
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* PUBLIC: void __os_dirfree __P((char **, int));
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*/
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void
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__os_dirfree(names, cnt)
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char **names;
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int cnt;
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{
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while (cnt > 0)
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__db_free(names[--cnt]);
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__db_free(names);
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}
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