diff options
Diffstat (limited to 'src/global/mail_scan_dir.c')
| -rw-r--r-- | src/global/mail_scan_dir.c | 62 |
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); + } + } +} |