#include "log.h"
#include "osl.h"
#include "error.h"
-#include "fd.h"
+#include "util.h"
#include "osl_core.h"
#include "fsck.cmdline.h"
return 0;
}
+/**
+ * A wrapper for fchdir().
+ *
+ * \param fd An open file descriptor.
+ *
+ * \return Standard.
+ */
+static inline int __fchdir(int fd)
+{
+ if (fchdir(fd) < 0)
+ return -ERRNO_TO_ERROR(errno);
+ return 1;
+}
+
+/**
+ * Wrapper for chdir(2).
+ *
+ * \param path The specified directory.
+ *
+ * \return Standard.
+ */
+_static_inline_ int __chdir(const char *path)
+{
+ if (chdir(path) >= 0)
+ return 1;
+ return -ERRNO_TO_ERROR(errno);
+}
+
+/**
+ * Save the cwd and open a given directory.
+ *
+ * \param dirname Path to the directory to open.
+ * \param dir Result pointer.
+ * \param cwd File descriptor of the current working directory.
+ *
+ * \return Standard.
+ *
+ * Opening the current directory (".") and calling fchdir() to return is
+ * usually faster and more reliable than saving cwd in some buffer and calling
+ * chdir() afterwards.
+ *
+ * If \a cwd is not \p NULL "." is opened and the resulting file descriptor is
+ * stored in \a cwd. If the function returns success, and \a cwd is not \p
+ * NULL, the caller must close this file descriptor (probably after calling
+ * fchdir(*cwd)).
+ *
+ * On errors, the function undos everything, so the caller needs neither close
+ * any files, nor change back to the original working directory.
+ *
+ * \sa getcwd(3).
+ *
+ */
+static int fsck_opendir(const char *dirname, DIR **dir, int *cwd)
+{
+ int ret;
+
+ if (cwd) {
+ ret = osl_open(".", O_RDONLY, 0);
+ if (ret < 0)
+ return ret;
+ *cwd = ret;
+ }
+ ret = __chdir(dirname);
+ if (ret < 0)
+ goto close_cwd;
+ *dir = opendir(".");
+ if (*dir)
+ return 1;
+ ret = -ERRNO_TO_ERROR(errno);
+/* Ignore return value of fchdir() and close(). We're busted anyway. */
+ if (cwd)
+ fchdir(*cwd);
+close_cwd:
+ if (cwd)
+ close(*cwd);
+ return ret;
+}
+
+
+
/**
* Traverse the given directory recursively.
*
{
DIR *dir;
struct dirent *entry;
- int cwd_fd, ret2, ret = para_opendir(dirname, &dir, &cwd_fd);
+ int cwd_fd, ret2, ret = fsck_opendir(dirname, &dir, &cwd_fd);
if (ret < 0)
return ret == -ERRNO_TO_ERROR(EACCES)? 1 : ret;
ret = 1;
out:
closedir(dir);
- ret2 = para_fchdir(cwd_fd);
+ ret2 = __fchdir(cwd_fd);
if (ret2 < 0 && ret >= 0)
ret = ret2;
close(cwd_fd);
DEBUG_LOG("unmapping index\n");
osl_munmap(t->index_map.data, t->index_map.size);
filename = index_filename(t->desc);
- ret = para_truncate(filename, t->row_index_size
+ ret = truncate_file(filename, t->row_index_size
* t->num_invalid_rows);
free(filename);
if (ret < 0)
{
DIR *dir;
struct dirent *entry;
- int cwd_fd, ret2, ret = para_opendir(db_dir, &dir, &cwd_fd);
+ int cwd_fd, ret2, ret = fsck_opendir(db_dir, &dir, &cwd_fd);
if (ret < 0)
return ret;
break;
}
closedir(dir);
- ret2 = para_fchdir(cwd_fd);
+ ret2 = __fchdir(cwd_fd);
if (ret2 < 0 && ret >= 0)
ret = ret2;
close(cwd_fd);