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/readdir.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/readdir.c')
-rw-r--r-- | libc/misc/dirent/readdir.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/libc/misc/dirent/readdir.c b/libc/misc/dirent/readdir.c new file mode 100644 index 000000000..a755ed24d --- /dev/null +++ b/libc/misc/dirent/readdir.c @@ -0,0 +1,69 @@ +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <dirent.h> +#include "dirstream.h" + +extern int getdents __P ((unsigned int fd, struct dirent *dirp, unsigned int count)); + + +struct dirent *readdir(DIR * dir) +{ + int result; + struct dirent *de; + + if (!dir) { + errno = EBADF; + return NULL; + } + + /* Are we running an old kernel? */ + if (dir->dd_getdents == no_getdents) { + abort(); + } + + if (dir->dd_size <= dir->dd_nextloc) { + /* read dir->dd_max bytes of directory entries. */ + result = getdents(dir->dd_fd, dir->dd_buf, dir->dd_max); + + /* We assume we have getdents (). */ + dir->dd_getdents = have_getdents; + if (result <= 0) { + result = -result; + if (result > 0) { + /* Are we right? */ + if (result == ENOSYS) { + dir->dd_getdents = no_getdents; + abort(); + } + errno = result; + } + + return NULL; + } + + dir->dd_size = result; + dir->dd_nextloc = 0; + } + + de = (struct dirent *) (((char *) dir->dd_buf) + dir->dd_nextloc); + + /* Am I right? H.J. */ + dir->dd_nextloc += de->d_reclen; + + /* We have to save the next offset here. */ + dir->dd_nextoff = de->d_off; + + /* convert */ + dir->dd_buf->d_ino = de->d_ino; + dir->dd_buf->d_off = de->d_off; + dir->dd_buf->d_reclen = de->d_reclen; + dir->dd_buf->d_type = 0; + if (strlen((char *) &de->d_type) > 10) + de->d_name[10] = 0; + strcpy(dir->dd_buf->d_name, (char *) &de->d_name); + errno = 0; + + return dir->dd_buf; +} |