[PATCH 03/18] insert: open Maildir tmp file
Peter Wang
novalazy at gmail.com
Wed Jul 25 06:42:32 PDT 2012
Open a unique file in the Maildir tmp directory.
The new message is not yet copied into the file.
---
notmuch-insert.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 79 insertions(+), 1 deletions(-)
diff --git a/notmuch-insert.c b/notmuch-insert.c
index 21424cf..f01a6f2 100644
--- a/notmuch-insert.c
+++ b/notmuch-insert.c
@@ -20,12 +20,86 @@
#include "notmuch-client.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+static notmuch_bool_t
+safe_gethostname (char *hostname, size_t hostname_size)
+{
+ if (gethostname (hostname, hostname_size) == -1) {
+ strncpy (hostname, "unknown", hostname_size);
+ }
+ hostname[hostname_size - 1] = '\0';
+
+ return (strchr (hostname, '/') == NULL);
+}
+
+static int
+maildir_open_tmp (void *ctx, const char *dir, char **tmppath, char **newpath)
+{
+ pid_t pid;
+ char hostname[256];
+ struct timeval tv;
+ char *filename;
+ int fd = -1;
+
+ /* This is the file name format used by Dovecot. */
+ pid = getpid ();
+ if (! safe_gethostname (hostname, sizeof (hostname))) {
+ fprintf (stderr, "Error: invalid host name.\n");
+ return -1;
+ }
+ gettimeofday (&tv, NULL);
+ filename = talloc_asprintf (ctx, "%ld.M%ldP%d.%s",
+ tv.tv_sec, tv.tv_usec, pid, hostname);
+
+ *tmppath = talloc_asprintf (ctx, "%s/tmp/%s", dir, filename);
+
+ do {
+ fd = open (*tmppath, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, 0666);
+ } while (fd == -1 && errno == EEXIST);
+
+ if (fd != -1) {
+ *newpath = talloc_asprintf (ctx, "%s/new/%s", dir, filename);
+ }
+ else {
+ fprintf (stderr, "Error: opening %s: %s\n",
+ *tmppath, strerror (errno));
+ talloc_free (*tmppath);
+ }
+
+ talloc_free (filename);
+
+ return fd;
+}
+
+static notmuch_bool_t
+insert_message (void *ctx, notmuch_database_t *notmuch, int fdin,
+ const char *dir)
+{
+ char *tmppath;
+ char *newpath;
+ int fdout;
+
+ fdout = maildir_open_tmp (ctx, dir, &tmppath, &newpath);
+ if (fdout < 0) {
+ return FALSE;
+ }
+
+ close (fdout);
+ unlink (tmppath);
+ return FALSE;
+}
+
int
notmuch_insert_command (void *ctx, int argc, char *argv[])
{
notmuch_config_t *config;
notmuch_database_t *notmuch;
const char *db_path;
+ char *maildir;
+ notmuch_bool_t ret;
config = notmuch_config_open (ctx, NULL, NULL);
if (config == NULL)
@@ -33,11 +107,15 @@ notmuch_insert_command (void *ctx, int argc, char *argv[])
db_path = notmuch_config_get_database_path (config);
+ maildir = talloc_asprintf (ctx, "%s", db_path);
+
if (notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))
return 1;
+ ret = insert_message (ctx, notmuch, STDIN_FILENO, maildir);
+
notmuch_database_destroy (notmuch);
- return 1;
+ return (ret) ? 0 : 1;
}
--
1.7.4.4
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