63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/*++
|
|
/* 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);
|
|
}
|
|
}
|
|
}
|