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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:49:25 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:49:25 +0000 |
commit | 464df1d5e5ab1322e2dd0a7796939fff1aeefa9a (patch) | |
tree | 6a403684e0978f0287d7f0ec0e5aab1fd31a59e1 /lib/e2p/iod.c | |
parent | Initial commit. (diff) | |
download | e2fsprogs-upstream/1.47.0.tar.xz e2fsprogs-upstream/1.47.0.zip |
Adding upstream version 1.47.0.upstream/1.47.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/e2p/iod.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/lib/e2p/iod.c b/lib/e2p/iod.c new file mode 100644 index 0000000..6a030dd --- /dev/null +++ b/lib/e2p/iod.c @@ -0,0 +1,76 @@ +/* + * iod.c - Iterate a function on each entry of a directory + * + * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr> + * Laboratoire MASI, Institut Blaise Pascal + * Universite Pierre et Marie Curie (Paris VI) + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU Library + * General Public License, version 2. + * %End-Header% + */ + +/* + * History: + * 93/10/30 - Creation + */ + +#include "config.h" +#include "e2p.h" +#if HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <stdlib.h> +#include <string.h> + +int iterate_on_dir (const char * dir_name, + int (*func) (const char *, struct dirent *, void *), + void * private) +{ + DIR * dir; + struct dirent *de, *dep; + int max_len = -1, len, ret = 0; + +#if HAVE_PATHCONF && defined(_PC_NAME_MAX) + max_len = pathconf(dir_name, _PC_NAME_MAX); +#endif + if (max_len == -1) { +#ifdef _POSIX_NAME_MAX + max_len = _POSIX_NAME_MAX; +#else +#ifdef NAME_MAX + max_len = NAME_MAX; +#else + max_len = 256; +#endif /* NAME_MAX */ +#endif /* _POSIX_NAME_MAX */ + } + max_len += sizeof(struct dirent); + + de = malloc(max_len+1); + if (!de) + return -1; + memset(de, 0, max_len+1); + + dir = opendir (dir_name); + if (dir == NULL) { + free(de); + return -1; + } + while ((dep = readdir (dir))) { +#ifdef HAVE_RECLEN_DIRENT + len = dep->d_reclen; + if (len > max_len) + len = max_len; +#else + len = sizeof(struct dirent); +#endif + memcpy(de, dep, len); + if ((*func)(dir_name, de, private)) + ret++; + } + free(de); + closedir(dir); + return ret; +} |