add man pages + add -n option to nobotgate-access

doc/nobotgate-access.1

@@ -0,0 +1,13 @@
+.TH nobotgate-access 3
+.SH NAME
+nobotgate-access \- respond with http
+.SH SYNOPSIS
+nobotgate-access [-c] PROG ARGS
+.SH DESCRIPTION
+nobotgate-access is meant to run under a superserver such
+as tcpserver(1) or inetd(8). It reads http request headers
+from stdin(unless \-n is given), prints http response
+OK headers and finally exec's into PROG where the first
+argument is set to PROG and the remaining to ARGS.
+.SH "SEE ALSO"
+nobotgate(1), tcpserver(1), inetd(8)

doc/nobotgate.1

@@ -0,0 +1,24 @@
+.TH nobotgate 3
+.SH NAME
+nobotgate \- block bots using http header authentication
+.SH SYNOPSIS
+nobotgate TOKENFILE VALID INVALID
+.SH DESCRIPTION
+nobotgate-access is meant to run under a superserver such
+as tcpserver(1) or inetd(8).
+It reads http request headers from stdin and tries find a
+HTTP Bearer token. If no token is found or the token is not
+listed in TOKENFILE, it exec's into INVALID.
+If a token is found and the token is listed in
+TOKENFILE, it exec's into VALID.
+.SH "TOKENFILE FORMAT"
+The tokenfile is parsed line by line. Empty lines are
+ignored.
+The token begins at line start and ends at the first space
+in the line(the space is not part of the token of course).
+.SH "EXAMPLE"
+An example tokenfile:
+  1234 this is bob's token
+  abc223-23cm ci/cd token
+.SH "SEE ALSO"
+nobotgate-access(1), tcpserver(1), inetd(8)

meson.build

@@ -26,3 +26,8 @@ executable('nobotgate', files(
 executable('nobotgate-access', files(
   './nobotgate-access.c',
 ), dependencies:deps, install:true)
+
+install_man([
+  './doc/nobotgate.1',
+  './doc/nobotgate-access.1',
+])

nobotgate-access.c

@@ -3,7 +3,9 @@
 #include <libowfat/str.h>
 #include <unistd.h>
 
-#define dieusage() die(100, argv0, " PROG ARGS");
+#define dieusage() die(100, argv0, " [-n] PROG ARGS");
+
+static int consume=1;
 
 static void consume_headers(void) {
   char buf[2048];
@@ -19,11 +21,20 @@ static void consume_headers(void) {
 int main(int argc, char **argv)
 {
   char *header;
-  (void)argc;
+  int i;
   errmsg_iam(*argv);
+  for (i=1;i<argc;i++) {
+    if (argv[i][0]!='-') break;
+    if (argv[i][1]=='-' && !argv[i][2]) break;
+    switch (argv[i][1]) {
+    case 'n': consume=0; break;
+    default: dieusage();
+    }
+  }
+  argc-=i;argv+=i;
 
   if (argc<2) dieusage();
-
+  if (consume)
     consume_headers();
 
   header = "HTTP/1.0 200 OK\r\n"