diff options
author | Eric Andersen <andersen@codepoet.org> | 2001-03-19 22:49:36 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2001-03-19 22:49:36 +0000 |
commit | 8bdc62b0890760ebe6ddd70f2841b5136fbf7cb0 (patch) | |
tree | 4c1d6888d0bc4b3e1ce914faccd5063c77b41a1d /libc/misc/dirent/telldir.c | |
parent | 025490cb327377cf26993dfd839fcd0c81f5ce7e (diff) |
Move the dirent stuff. I suppose it is system dependant, but then
it really should be grouped together too. And it needed to be grouped
more then it needed to be in sysdeps/linux/common
Diffstat (limited to 'libc/misc/dirent/telldir.c')
-rw-r--r-- | libc/misc/dirent/telldir.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/libc/misc/dirent/telldir.c b/libc/misc/dirent/telldir.c new file mode 100644 index 000000000..33e163aba --- /dev/null +++ b/libc/misc/dirent/telldir.c @@ -0,0 +1,35 @@ +#include <errno.h> +#include <unistd.h> +#include "dirstream.h" + + +off_t telldir(DIR * dir) +{ + off_t offset; + + if (!dir) { + errno = EBADF; + return -1; + } + + switch (dir->dd_getdents) { + case no_getdents: + /* We are running the old kernel. This is the starting offset + of the next readdir(). */ + offset = lseek(dir->dd_fd, 0, SEEK_CUR); + break; + + case unknown: + /* readdir () is not called yet. but seekdir () may be called. */ + case have_getdents: + /* The next entry. */ + offset = dir->dd_nextoff; + break; + + default: + errno = EBADF; + offset = -1; + } + + return offset; +} |