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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
commitb5896ba9f6047e7031e2bdee0622d543e11a6734 (patch)
treefd7b460593a2fee1be579bec5697e6d887ea3421 /src/global/mail_scan_dir.c
parentInitial commit. (diff)
downloadpostfix-upstream/3.4.23.tar.xz
postfix-upstream/3.4.23.zip
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/global/mail_scan_dir.c')
-rw-r--r--src/global/mail_scan_dir.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/src/global/mail_scan_dir.c b/src/global/mail_scan_dir.c
new file mode 100644
index 0000000..f011536
--- /dev/null
+++ b/src/global/mail_scan_dir.c
@@ -0,0 +1,62 @@
+/*++
+/* NAME
+/* mail_scan_dir 3
+/* SUMMARY
+/* mail queue directory scanning support
+/* SYNOPSIS
+/* #include <mail_scan_dir.h>
+/*
+/* char *mail_scan_dir_next(scan)
+/* SCAN_DIR *scan;
+/* DESCRIPTION
+/* The \fBmail_scan_dir_next\fR() routine is a wrapper around
+/* scan_dir_next() that understands the structure of a Postfix
+/* mail queue. The result is a queue ID or a null pointer.
+/* SEE ALSO
+/* scan_dir(3) directory scanner
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <scan_dir.h>
+
+/* Global library. */
+
+#include <mail_scan_dir.h>
+
+/* mail_scan_dir_next - return next queue file */
+
+char *mail_scan_dir_next(SCAN_DIR *scan)
+{
+ char *name;
+
+ /*
+ * Exploit the fact that mail queue subdirectories have one-letter names,
+ * so we don't have to stat() every file in sight. This is a win because
+ * many dirent implementations do not return file type information.
+ */
+ for (;;) {
+ if ((name = scan_dir_next(scan)) == 0) {
+ if (scan_dir_pop(scan) == 0)
+ return (0);
+ } else if (strlen(name) == 1) {
+ scan_dir_push(scan, name);
+ } else {
+ return (name);
+ }
+ }
+}