diff --git a/AUTHORS.md b/AUTHORS.md
index 241bef9..ad8df7f 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -11,6 +11,7 @@ patches or pull requests, in chronological order of their first contribution:
 -   Wayne Jensen ([wjjensen](https://github.com/wjjensen))
 -   Rory McNamara ([psychomario](https://github.com/psychomario))
 -   Alexander Neumann ([fd0](https://github.com/fd0))
+-   Adam Jacob Muller ([AdamJacobMuller](https://github.com/AdamJacobMuller))
 
 Many more individuals have contributed by reporting bugs or feature requests.
 See [issue tracker on Github][1], `NEWS.md` and `git log` for details.
diff --git a/NEWS.md b/NEWS.md
index cf082fc..77e54af 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,6 +1,8 @@
 
 ### SSLsplit develop
 
+-   Added separate src/dst host and port format specifiers %S, %p, %D and %q
+    to -F (pull req #74 by @AdamJacobMuller).
 -   Filenames generated by -S and -F %d and %s changed from [host]:port to
     host,port format and using underscore instead of colon in IPv6 addresses
     in order to be NTFS clean (issue #69).
diff --git a/log.c b/log.c
index 3591a76..97d0d2e 100644
--- a/log.c
+++ b/log.c
@@ -386,6 +386,14 @@ log_content_format_pathspec(const char *logspec,
 				elem = addrbuf;
 				elem_len = strlen(addrbuf);
 				break;
+			case 'D':
+				elem = dsthost;
+				elem_len = strlen(dsthost);
+				break;
+			case 'p':
+				elem = dstport;
+				elem_len = strlen(dstport);
+				break;
 			case 's':
 				if (snprintf(addrbuf, sizeof(addrbuf),
 				             "%s,%s", srchost, srcport) < 0) {
@@ -395,6 +403,14 @@ log_content_format_pathspec(const char *logspec,
 				elem = addrbuf;
 				elem_len = strlen(addrbuf);
 				break;
+			case 'S':
+				elem = srchost;
+				elem_len = strlen(srchost);
+				break;
+			case 'q':
+				elem = srcport;
+				elem_len = strlen(srcport);
+				break;
 			case 'x':
 				if (exec_path) {
 					char *match = exec_path;
diff --git a/main.c b/main.c
index e4a0423..50ecff3 100644
--- a/main.c
+++ b/main.c
@@ -154,7 +154,11 @@ main_usage(void)
 "  -F pathspec content log: full data to sep files with %% subst (excl. -L/-S):\n"
 "              %%T - initial connection time as an ISO 8601 UTC timestamp\n"
 "              %%d - destination host and port\n"
+"              %%D - destination host\n"
+"              %%p - destination port\n"
 "              %%s - source host and port\n"
+"              %%S - source host\n"
+"              %%q - source port\n"
 #ifdef HAVE_LOCAL_PROCINFO
 "              %%x - base name of local process        (requires -i)\n"
 "              %%X - full path to local process        (requires -i)\n"
diff --git a/sslsplit.1 b/sslsplit.1
index fe9d5e6..821604c 100644
--- a/sslsplit.1
+++ b/sslsplit.1
@@ -394,10 +394,22 @@ The initial connection time as an ISO 8601 UTC timestamp.
 The destination host and port, separated by a comma, IPv6 addresses using
 underscore instead of colon.
 .TP
+.I %D
+The destination host, IPv6 addresses using underscore instead of colon.
+.TP
+.I %p
+The destination port.
+.TP
 .I %s
 The source host and port, separated by a comma, IPv6 addresses using
 underscore instead of colon.
 .TP
+.I %S
+The source host, IPv6 addresses using underscore instead of colon.
+.TP
+.I %q
+The source port.
+.TP
 .I %x
 The name of the local process.
 Requires \fB-i\fP to be used.
@@ -685,7 +697,8 @@ SSLsplit was written by Daniel Roethlisberger <daniel@roe.ch>.
 
 The following individuals have contributed code or documentation, in
 chronological order of their first contribution:
-Steve Wills, Landon Fuller, Wayne Jensen, Rory McNamara and Alexander Neumann.
+Steve Wills, Landon Fuller, Wayne Jensen, Rory McNamara, Alexander Neumann and
+Adam Jacob Muller.
 .SH BUGS
 Use Github for submission of bug reports or patches:
 .LP