[PATCH 2/4] qh: Fall for peer pressure from myself, and implement some help

[robin.sonefors at op5.com]

From: Robin Sonefors <robin.sonefors at op5.com>

This is still quite sparse, as it's intended as inline help and hints,
rather than as complete documentation, but it should still prove
helpful.

Signed-off-by: Robin Sonefors <robin.sonefors at op5.com>
---
 base/nerd.c          |  7 +++++++
 base/query-handler.c | 15 +++++++++++++++
 base/workers.c       | 10 ++++++++++
 3 files changed, 32 insertions(+)

diff --git a/base/nerd.c b/base/nerd.c
index 897a5da..05a0953 100644
--- a/base/nerd.c
+++ b/base/nerd.c
@@ -400,6 +400,13 @@ static int nerd_qh_handler(int sd, char *request, unsigned int len)
 	struct nerd_channel *chan;
 	int action;
 
+	if (!strcmp(request, "--help")) {
+		nsock_printf_nul(sd, "Manage subscriptions to NERD channels.\n"
+			"Valid commands are 'subscribe' and 'unsubscribe' to a specified channel.\n"
+			"Valid channels are 'hostchecks', 'servicechecks' and 'opathchecks'.");
+		return 0;
+	}
+
 	while(request[len] == 0 || request[len] == '\n')
 		request[len--] = 0;
 	chan_name = strchr(request, ' ');
diff --git a/base/query-handler.c b/base/query-handler.c
index f9c0604..bf6117a 100644
--- a/base/query-handler.c
+++ b/base/query-handler.c
@@ -23,6 +23,11 @@ static dkhash_table *qh_table;
 /* the echo service. stupid, but useful for testing */
 static int qh_echo(int sd, char *buf, unsigned int len)
 {
+	if (!strcmp(buf, "--help")) {
+		nsock_printf_nul(sd,
+			"Query handler that simply echoes back what you send it.");
+		return 0;
+	}
 	(void)write(sd, buf, len);
 	return 0;
 }
@@ -286,6 +291,16 @@ static int qh_core(int sd, char *buf, unsigned int len)
 {
 	char *space;
 
+	if (!strcmp(buf, "--help")) {
+		nsock_printf_nul(sd, "Query handler for manipulating nagios core.\n"
+			"Available commands:\n"
+			"  loadctl           Print information about current load control settings\n"
+			"  loadctl <options> Configure nagios load control.\n"
+			"                    The options are the same parameters and format as\n"
+			"                    returned above."
+		);
+		return 0;
+	}
 	if ((space = memchr(buf, ' ', len)))
 		*(space++) = 0;
 	if (!space && !strcmp(buf, "loadctl")) {
diff --git a/base/workers.c b/base/workers.c
index 0f315d5..d74f1d2 100644
--- a/base/workers.c
+++ b/base/workers.c
@@ -722,6 +722,16 @@ static int wproc_query_handler(int sd, char *buf, unsigned int len)
 {
 	char *space, *rbuf = NULL;
 
+	if (!strcmp(buf, "--help")) {
+		nsock_printf_nul(sd, "Control worker processes.\n"
+			"Valid commands:\n"
+			"  wpstats            Print general job information\n"
+			"  register <options> Register a new worker\n"
+			"                     <options> can be name, pid, max_jobs and/or plugin.\n"
+			"                     There can be many plugin args.");
+		return 0;
+	}
+
 	if ((space = memchr(buf, ' ', len)) != NULL)
 		*space = 0;
 
-- 
1.7.11.7


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