More usage.h cleanups, with collateral changes to httpd. Specifically,

most of our CONFIG entries switch stuff on instead of off when enabled, so fix
the gratuitously reversed INETD thing.

3 files changed, 44 insertions, 102 deletions

diff --git a/include/usage.h b/include/usage.h
index 052f6fcc2..65a7874fa 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -975,36 +975,6 @@ USE_FEATURE_DATE_ISOFMT( \
 	"\t-n\t\tno call to sync()\n" \
 	"\t-f\t\tforce halt (don't go through init)"
 
-#ifdef CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF
-#define USAGE_SCAN_HWIF(a) a
-#else
-#define USAGE_SCAN_HWIF(a)
-#endif
-
-#ifdef CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
-#define USAGE_UNREGISTER_HWIF(a) a
-#else
-#define USAGE_UNREGISTER_HWIF(a)
-#endif
-
-#ifdef CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET
-#define USAGE_DRIVE_RESET(a) a
-#else
-#define USAGE_DRIVE_RESET(a)
-#endif
-
-#ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
-#define USAGE_TRISTATE_HWIF(a) a
-#else
-#define USAGE_TRISTATE_HWIF(a)
-#endif
-
-#ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
-#define USAGE_GETSET_DMA(a) a
-#else
-#define USAGE_GETSET_DMA(a)
-#endif
-
 #define hdparm_trivial_usage \
 	"[options] [device] .."
 #define hdparm_full_usage \
@@ -1015,7 +985,7 @@ USE_FEATURE_DATE_ISOFMT( \
 	"\t-B   set Advanced Power Management setting (1-255)\n" \
 	"\t-c   get/set IDE 32-bit IO setting\n" \
 	"\t-C   check IDE power mode status\n" \
-	USAGE_GETSET_DMA("\t-d   get/set using_dma flag\n") \
+	USE_FEATURE_HDPARM_HDIO_GETSET_DMA("\t-d   get/set using_dma flag\n") \
 	"\t-D   enable/disable drive defect-mgmt\n" \
 	"\t-f   flush buffer cache for device on exit\n" \
 	"\t-g   display drive geometry\n" \
@@ -1033,29 +1003,23 @@ USE_FEATURE_DATE_ISOFMT( \
 	"\t-q   change next setting quietly\n" \
 	"\t-Q   get/set DMA tagged-queuing depth (if supported)\n" \
 	"\t-r   get/set readonly flag (DANGEROUS to set)\n" \
-	USAGE_SCAN_HWIF("\t-R   register an IDE interface (DANGEROUS)\n") \
+	USE_FEATURE_HDPARM_HDIO_SCAN_HWIF("\t-R   register an IDE interface (DANGEROUS)\n") \
 	"\t-S   set standby (spindown) timeout\n" \
 	"\t-t   perform device read timings\n" \
 	"\t-T   perform cache read timings\n" \
 	"\t-u   get/set unmaskirq flag (0/1)\n" \
-	USAGE_UNREGISTER_HWIF("\t-U   un-register an IDE interface (DANGEROUS)\n") \
+	USE_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF("\t-U   un-register an IDE interface (DANGEROUS)\n") \
 	"\t-v   defaults; same as -mcudkrag for IDE drives\n" \
 	"\t-V   display program version and exit immediately\n" \
-	USAGE_DRIVE_RESET("\t-w   perform device reset (DANGEROUS)\n") \
+	USE_FEATURE_HDPARM_HDIO_DRIVE_RESET("\t-w   perform device reset (DANGEROUS)\n") \
 	"\t-W   set drive write-caching flag (0/1) (DANGEROUS)\n" \
-	USAGE_TRISTATE_HWIF("\t-x   tristate device for hotswap (0/1) (DANGEROUS)\n") \
+	USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF("\t-x   tristate device for hotswap (0/1) (DANGEROUS)\n") \
 	"\t-X   set IDE xfer mode (DANGEROUS)\n" \
 	"\t-y   put IDE drive in standby mode\n" \
 	"\t-Y   put IDE drive to sleep\n" \
 	"\t-Z   disable Seagate auto-powersaving mode\n" \
 	"\t-z   re-read partition table"
 
-#ifdef CONFIG_FEATURE_FANCY_HEAD
-#define USAGE_FANCY_HEAD(a) a
-#else
-#define USAGE_FANCY_HEAD(a)
-#endif
-
 #define head_trivial_usage \
 	"[OPTION]... [FILE]..."
 #define head_full_usage \
@@ -1064,7 +1028,7 @@ USE_FEATURE_DATE_ISOFMT( \
 	"file name. With no FILE, or when FILE is -, read standard input.\n\n" \
 	"Options:\n" \
 	"\t-n NUM\t\tPrint first NUM lines instead of first 10" \
-	USAGE_FANCY_HEAD( \
+	USE_FEATURE_FANCY_HEAD( \
 	"\n\t-c NUM\t\toutput the first NUM bytes\n" \
 	"\t-q\t\tnever output headers giving file names\n" \
 	"\t-v\t\talways output headers giving file names" )
@@ -1111,44 +1075,22 @@ USE_FEATURE_DATE_ISOFMT( \
 	"$ hostname\n" \
 	"sage\n"
 
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
-#  define USAGE_HTTPD_BASIC_AUTH(a) a
-#  ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
-#    define USAGE_HTTPD_AUTH_MD5(a) a
-#  else
-#    define USAGE_HTTPD_AUTH_MD5(a)
-#  endif
-#else
-#  define USAGE_HTTPD_BASIC_AUTH(a)
-#  define USAGE_HTTPD_AUTH_MD5(a)
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
-#  define USAGE_HTTPD_STANDALONE(a)
-#  define USAGE_HTTPD_SETUID(a)
-#else
-#  define USAGE_HTTPD_STANDALONE(a) a
-#  ifdef CONFIG_FEATURE_HTTPD_SETUID
-#    define USAGE_HTTPD_SETUID(a) a
-#  else
-#    define USAGE_HTTPD_SETUID(a)
-#  endif
-#endif
 #define httpd_trivial_usage \
 	"[-c <conf file>]" \
-	USAGE_HTTPD_STANDALONE(" [-p <port>]") \
-	USAGE_HTTPD_SETUID(" [-u user]") \
-	USAGE_HTTPD_BASIC_AUTH(" [-r <realm>]") \
-	USAGE_HTTPD_AUTH_MD5(" [-m pass]") \
+	USE_FEATURE_HTTPD_WITHOUT_INETD(" [-p <port>]") \
+	USE_FEATURE_HTTPD_SETUID(" [-u user]") \
+	USE_FEATURE_HTTPD_BASIC_AUTH(" [-r <realm>]") \
+	USE_FEATURE_HTTPD_AUTH_MD5(" [-m pass]") \
 	" [-h home]" \
 	" [-d/-e <string>]"
 #define httpd_full_usage \
 	"Listens for incoming http server requests.\n\n" \
 	"Options:\n" \
 	"\t-c FILE\t\tSpecifies configuration file. (default httpd.conf)\n" \
-	USAGE_HTTPD_STANDALONE("\t-p PORT\tServer port (default 80)\n") \
-	USAGE_HTTPD_SETUID("\t-u USER\tSet uid to USER after listening privileges port\n") \
-	USAGE_HTTPD_BASIC_AUTH("\t-r REALM\tAuthentication Realm for Basic Authentication\n") \
-	USAGE_HTTPD_AUTH_MD5("\t-m PASS\t\tCrypt PASS with md5 algorithm\n") \
+	USE_FEATURE_HTTPD_WITHOUT_INETD("\t-p PORT\tServer port (default 80)\n") \
+	USE_FEATURE_HTTPD_SETUID("\t-u USER\tSet uid to USER after listening privileges port\n") \
+	USE_FEATURE_HTTPD_BASIC_AUTH("\t-r REALM\tAuthentication Realm for Basic Authentication\n") \
+	USE_FEATURE_HTTPD_AUTH_MD5("\t-m PASS\t\tCrypt PASS with md5 algorithm\n") \
 	"\t-h HOME  \tSpecifies http HOME directory (default ./)\n" \
 	"\t-e STRING\tHtml encode STRING\n" \
 	"\t-d STRING\tURL decode STRING"
diff --git a/networking/Config.in b/networking/Config.in
index 61d03aaf0..94e59ead1 100644
--- a/networking/Config.in
+++ b/networking/Config.in
@@ -61,18 +61,18 @@ config CONFIG_HTTPD
 	help
 	  Serve web pages via an HTTP server.
 
-config CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
-	bool "Support using httpd only from inetd"
+config CONFIG_FEATURE_HTTPD_WITHOUT_INETD
+	bool "Support using httpd as a daemon (not from inetd)"
 	default n
 	depends on CONFIG_HTTPD
 	help
-	  This option disables uid and port options for the httpd applet
-	  but requires inetd server daemon.
+	  This option enables uid and port options for the httpd applet,
+	  and eliminates the need to be called from the inetd server daemon.
 
 config CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
 	bool "Support reloading the global config file using hup signal"
 	default n
-	depends on CONFIG_HTTPD && !CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+	depends on CONFIG_HTTPD && CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 	help
 	  This option enables processing of SIGHUP to reload cached
 	  configuration settings.
@@ -80,7 +80,7 @@ config CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
 config CONFIG_FEATURE_HTTPD_SETUID
 	bool "Enable support -u <user> option"
 	default n
-	depends on CONFIG_HTTPD && !CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+	depends on CONFIG_HTTPD && CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 	help
 	  This option allows the server to run as a specific user
 	  rather than defaulting to the user that starts the server.
diff --git a/networking/httpd.c b/networking/httpd.c
index 97bec6e4b..73a9461fa 100644
--- a/networking/httpd.c
+++ b/networking/httpd.c
@@ -183,7 +183,7 @@ typedef struct
   Htaccess *mime_a;             /* config mime types */
 #endif
 
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
   int accepted_socket;
 # define a_c_r config->accepted_socket
 # define a_c_w config->accepted_socket
@@ -776,7 +776,7 @@ static void addEnv(const char *name_before_underline,
   }
 }
 
-#if defined(CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV) || !defined(CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY)
+#if defined(CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV) || defined(CONFIG_FEATURE_HTTPD_WITHOUT_INETD)
 /* set environs SERVER_PORT and REMOTE_PORT */
 static void addEnvPort(const char *port_name)
 {
@@ -848,7 +848,7 @@ static void decodeBase64(char *Data)
 #endif
 
 
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 /****************************************************************************
  *
  > $Function: openServer()
@@ -885,7 +885,7 @@ static int openServer(void)
   signal(SIGCHLD, SIG_IGN);   /* prevent zombie (defunct) processes */
   return fd;
 }
-#endif  /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif  /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
 
 /****************************************************************************
  *
@@ -1163,7 +1163,7 @@ static int sendCgi(const char *url,
 		}
 	    }
       }
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
       config->accepted_socket = 1;      /* send to stdout */
 #endif
       sendHeaders(HTTP_NOT_FOUND);
@@ -1728,7 +1728,7 @@ FORBIDDEN:      /* protect listing /cgi-bin */
 			config->last_mod = sb.st_mtime;
 		}
 		sendFile(test);
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 		/* unset if non inetd looped */
 		config->ContentLength = -1;
 #endif
@@ -1741,7 +1741,7 @@ FORBIDDEN:      /* protect listing /cgi-bin */
   } while (0);
 
 
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 /* from inetd don`t looping: freeing, closing automatic from exit always */
 # if DEBUG
   fprintf(stderr, "closing socket\n");
@@ -1754,7 +1754,7 @@ FORBIDDEN:      /* protect listing /cgi-bin */
   free(config->remoteuser);
 #endif
 # endif
-#endif  /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif  /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
   shutdown(a_c_w, SHUT_WR);
 
   /* Properly wait for remote to closed */
@@ -1768,9 +1768,9 @@ FORBIDDEN:      /* protect listing /cgi-bin */
   } while (retval > 0 && (read (a_c_r, buf, sizeof (config->buf)) > 0));
 
   shutdown(a_c_r, SHUT_RD);
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
   close(config->accepted_socket);
-#endif  /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif  /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
 }
 
 /****************************************************************************
@@ -1788,7 +1788,7 @@ FORBIDDEN:      /* protect listing /cgi-bin */
  * $Return: (int) . . . . Always 0.
  *
  ****************************************************************************/
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 static int miniHttpd(int server)
 {
   fd_set readfd, portfd;
@@ -1874,7 +1874,7 @@ static int miniHttpd(void)
   handleIncoming();
   return 0;
 }
-#endif  /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif  /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
 
 #ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
 static void sighup_handler(int sig)
@@ -1899,7 +1899,7 @@ enum httpd_opts_nums {
 	USE_FEATURE_HTTPD_BASIC_AUTH(r_opt_realm,)
 	USE_FEATURE_HTTPD_AUTH_MD5(m_opt_md5,)
 	USE_FEATURE_HTTPD_SETUID(u_opt_setuid,)
-	SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(p_opt_port,)
+	USE_FEATURE_HTTPD_WITHOUT_INETD(p_opt_port,)
 };
 
 static const char httpd_opts[]="c:d:h:"
@@ -1907,7 +1907,7 @@ static const char httpd_opts[]="c:d:h:"
 	USE_FEATURE_HTTPD_BASIC_AUTH("r:")
 	USE_FEATURE_HTTPD_AUTH_MD5("m:")
 	USE_FEATURE_HTTPD_SETUID("u:")
-	SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY("p:");
+	USE_FEATURE_HTTPD_WITHOUT_INETD("p:");
 
 #define OPT_CONFIG_FILE (1<<c_opt_config_file)
 #define OPT_DECODE_URL  (1<<d_opt_decode_url)
@@ -1925,8 +1925,8 @@ static const char httpd_opts[]="c:d:h:"
 #define OPT_SETUID      USE_FEATURE_HTTPD_SETUID((1<<u_opt_setuid)) \
 			SKIP_FEATURE_HTTPD_SETUID(0)
 
-#define OPT_PORT        SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY((1<<p_opt_port)) \
-			USE_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(0)
+#define OPT_PORT        USE_FEATURE_HTTPD_WITHOUT_INETD((1<<p_opt_port)) \
+			SKIP_FEATURE_HTTPD_WITHOUT_INETD(0)
 
 
 int httpd_main(int argc, char *argv[])
@@ -1935,8 +1935,8 @@ int httpd_main(int argc, char *argv[])
   const char *home_httpd = home;
   char *url_for_decode;
   USE_FEATURE_HTTPD_ENCODE_URL_STR(const char *url_for_encode;)
-  SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(const char *s_port;)
-  SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(int server;)
+  USE_FEATURE_HTTPD_WITHOUT_INETD(const char *s_port;)
+  USE_FEATURE_HTTPD_WITHOUT_INETD(int server;)
 
   USE_FEATURE_HTTPD_SETUID(const char *s_uid;)
   USE_FEATURE_HTTPD_SETUID(long uid = -1;)
@@ -1948,7 +1948,7 @@ int httpd_main(int argc, char *argv[])
   config->realm = "Web Server Authentication";
 #endif
 
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
   config->port = 80;
 #endif
 
@@ -1960,7 +1960,7 @@ int httpd_main(int argc, char *argv[])
 			USE_FEATURE_HTTPD_BASIC_AUTH(, &(config->realm))
 			USE_FEATURE_HTTPD_AUTH_MD5(, &pass)
 			USE_FEATURE_HTTPD_SETUID(, &s_uid)
-			SKIP_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY(, &s_port)
+			USE_FEATURE_HTTPD_WITHOUT_INETD(, &s_port)
 	);
 
   if(opt & OPT_DECODE_URL) {
@@ -1979,7 +1979,7 @@ int httpd_main(int argc, char *argv[])
       return 0;
   }
 #endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
     if(opt & OPT_PORT)
 	config->port = bb_xgetlarg(s_port, 10, 1, 0xffff);
 #ifdef CONFIG_FEATURE_HTTPD_SETUID
@@ -1996,7 +1996,7 @@ int httpd_main(int argc, char *argv[])
 #endif
 
   bb_xchdir(home_httpd);
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
   server = openServer();
 # ifdef CONFIG_FEATURE_HTTPD_SETUID
   /* drop privileges */
@@ -2014,7 +2014,7 @@ int httpd_main(int argc, char *argv[])
 	clearenv();
 	if(p)
 		setenv("PATH", p, 1);
-# ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+# ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 	addEnvPort("SERVER");
 # endif
    }
@@ -2026,7 +2026,7 @@ int httpd_main(int argc, char *argv[])
   parse_conf(default_path_httpd_conf, FIRST_PARSE);
 #endif
 
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
 # if !DEBUG
   bb_xdaemon(1, 0);     /* don`t change curent directory */
 # endif