static notmuch_bool_t
sync_dir (const char *dir)
{
- notmuch_bool_t ret;
- int fd;
+ int fd, r;
fd = open (dir, O_RDONLY);
if (fd == -1) {
- fprintf (stderr, "Error: open() dir failed: %s\n", strerror (errno));
+ fprintf (stderr, "Error: open %s: %s\n", dir, strerror (errno));
return FALSE;
}
- ret = (fsync (fd) == 0);
- if (! ret) {
- fprintf (stderr, "Error: fsync() dir failed: %s\n", strerror (errno));
- }
+
+ r = fsync (fd);
+ if (r)
+ fprintf (stderr, "Error: fsync %s: %s\n", dir, strerror (errno));
+
close (fd);
- return ret;
+
+ return r == 0;
}
/*
}
}
-/* Make the given directory, succeeding if it already exists. */
+/*
+ * Make the given directory and its parents as necessary, using the
+ * given mode. Return TRUE on success, FALSE otherwise. Partial
+ * results are not cleaned up on errors.
+ */
static notmuch_bool_t
-make_directory (char *path, int mode)
+mkdir_recursive (const void *ctx, const char *path, int mode)
{
- notmuch_bool_t ret;
- char *slash;
+ struct stat st;
+ int r;
+ char *parent = NULL, *slash;
- if (mkdir (path, mode) != 0)
- return (errno == EEXIST);
+ /* First check the common case: directory already exists. */
+ r = stat (path, &st);
+ if (r == 0) {
+ if (! S_ISDIR (st.st_mode)) {
+ fprintf (stderr, "Error: '%s' is not a directory: %s\n",
+ path, strerror (EEXIST));
+ return FALSE;
+ }
- /* Sync the parent directory for durability. */
- ret = TRUE;
- slash = strrchr (path, '/');
- if (slash) {
- *slash = '\0';
- ret = sync_dir (path);
- *slash = '/';
+ return TRUE;
+ } else if (errno != ENOENT) {
+ fprintf (stderr, "Error: stat '%s': %s\n", path, strerror (errno));
+ return FALSE;
}
- return ret;
-}
-
-/* Make the given directory including its parent directories as necessary.
- * Return TRUE on success, FALSE on error. */
-static notmuch_bool_t
-make_directory_and_parents (char *path, int mode)
-{
- struct stat st;
- char *start;
- char *end;
- notmuch_bool_t ret;
- /* First check the common case: directory already exists. */
- if (stat (path, &st) == 0)
- return S_ISDIR (st.st_mode) ? TRUE : FALSE;
-
- for (start = path; *start != '\0'; start = end + 1) {
- /* start points to the first unprocessed character.
- * Find the next slash from start onwards. */
- end = strchr (start, '/');
-
- /* If there are no more slashes then all the parent directories
- * have been made. Now attempt to make the whole path. */
- if (end == NULL)
- return make_directory (path, mode);
-
- /* Make the path up to the next slash, unless the current
- * directory component is actually empty. */
- if (end > start) {
- *end = '\0';
- ret = make_directory (path, mode);
- *end = '/';
- if (! ret)
- return FALSE;
+ /* mkdir parents, if any */
+ slash = strrchr (path, '/');
+ if (slash && slash != path) {
+ parent = talloc_strndup (ctx, path, slash - path);
+ if (! parent) {
+ fprintf (stderr, "Error: %s\n", strerror (ENOMEM));
+ return FALSE;
}
+
+ if (! mkdir_recursive (ctx, parent, mode))
+ return FALSE;
}
- return TRUE;
+ if (mkdir (path, mode)) {
+ fprintf (stderr, "Error: mkdir '%s': %s\n", path, strerror (errno));
+ return FALSE;
+ }
+
+ return parent ? sync_dir (parent) : TRUE;
}
-/* Create the given maildir folder, i.e. dir and its subdirectories
- * 'cur', 'new', 'tmp'. */
+/*
+ * Create the given maildir folder, i.e. maildir and its
+ * subdirectories cur/new/tmp. Return TRUE on success, FALSE
+ * otherwise. Partial results are not cleaned up on errors.
+ */
static notmuch_bool_t
-maildir_create_folder (void *ctx, const char *dir)
+maildir_create_folder (const void *ctx, const char *maildir)
{
+ const char *subdirs[] = { "cur", "new", "tmp" };
const int mode = 0700;
char *subdir;
- char *tail;
+ unsigned int i;
- /* Create 'cur' directory, including parent directories. */
- subdir = talloc_asprintf (ctx, "%s/cur", dir);
- if (! subdir) {
- fprintf (stderr, "Out of memory.\n");
- return FALSE;
+ for (i = 0; i < ARRAY_SIZE (subdirs); i++) {
+ subdir = talloc_asprintf (ctx, "%s/%s", maildir, subdirs[i]);
+ if (! subdir) {
+ fprintf (stderr, "Error: %s\n", strerror (ENOMEM));
+ return FALSE;
+ }
+
+ if (! mkdir_recursive (ctx, subdir, mode))
+ return FALSE;
}
- if (! make_directory_and_parents (subdir, mode))
- return FALSE;
- tail = subdir + strlen (subdir) - 3;
+ return TRUE;
+}
- /* Create 'new' directory. */
- strcpy (tail, "new");
- if (! make_directory (subdir, mode))
- return FALSE;
+/*
+ * Generate a temporary file basename, no path, do not create an
+ * actual file. Return the basename, or NULL on errors.
+ */
+static char *
+tempfilename (const void *ctx)
+{
+ char *filename;
+ char hostname[256];
+ struct timeval tv;
+ pid_t pid;
- /* Create 'tmp' directory. */
- strcpy (tail, "tmp");
- if (! make_directory (subdir, mode))
- return FALSE;
+ /* We follow the Dovecot file name generation algorithm. */
+ pid = getpid ();
+ safe_gethostname (hostname, sizeof (hostname));
+ gettimeofday (&tv, NULL);
- talloc_free (subdir);
- return TRUE;
+ filename = talloc_asprintf (ctx, "%ld.M%ldP%d.%s",
+ tv.tv_sec, tv.tv_usec, pid, hostname);
+ if (! filename)
+ fprintf (stderr, "Error: %s\n", strerror (ENOMEM));
+
+ return filename;
}
/* Open a unique file in the 'tmp' sub-directory of dir.
maildir_open_tmp_file (void *ctx, const char *dir,
char **tmppath, char **newpath, char **newdir)
{
- pid_t pid;
- char hostname[256];
- struct timeval tv;
char *filename;
int fd = -1;
- /* We follow the Dovecot file name generation algorithm. */
- pid = getpid ();
- safe_gethostname (hostname, sizeof (hostname));
do {
- gettimeofday (&tv, NULL);
- filename = talloc_asprintf (ctx, "%ld.M%ldP%d.%s",
- tv.tv_sec, tv.tv_usec, pid, hostname);
- if (! filename) {
- fprintf (stderr, "Out of memory\n");
+ filename = tempfilename (ctx);
+ if (! filename)
return -1;
- }
*tmppath = talloc_asprintf (ctx, "%s/tmp/%s", dir, filename);
if (! *tmppath) {
return fd;
}
-/* Copy the contents of standard input (fdin) into fdout.
- * Returns TRUE if a non-empty file was written successfully.
- * Otherwise, return FALSE. */
+/*
+ * Copy fdin to fdout, return TRUE on success, and FALSE on errors and
+ * empty input.
+ */
static notmuch_bool_t
-copy_stdin (int fdin, int fdout)
+copy_fd (int fdout, int fdin)
{
notmuch_bool_t empty = TRUE;
cleanup_path = tmppath;
- if (! copy_stdin (fdin, fdout))
+ if (! copy_fd (fdout, fdin))
goto FAIL;
if (fsync (fdout) != 0) {
fprintf (stderr, "Out of memory\n");
return EXIT_FAILURE;
}
- if (create_folder && ! maildir_create_folder (config, maildir)) {
- fprintf (stderr, "Error: creating maildir %s: %s\n",
- maildir, strerror (errno));
+ if (create_folder && ! maildir_create_folder (config, maildir))
return EXIT_FAILURE;
- }
}
/* Setup our handler for SIGINT. We do not set SA_RESTART so that copying
projects / notmuch / blobdiff