Nagios Support Forum

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On 08/24/2010 11:30 PM, Jochen Bern wrote:
> Having that said, and after seeing too many people unable to do $ARGn$
> substitution correctly in their head or with pen and paper, I wrote a
> patch for config.c which makes the links display the appropriate
> "expansion" right away.

Update:
-- Improved Command Expansion
-- Non-$ARGn$ macros and $$'s are now color coded, too
-- Better coverage of error cases
-- Reused expand=3D parameter to add functionality to other display_*()s'
output (mostly "list only object with that name", but services and
service dependencies match *host* names, for decently-sized lists)
-- Changed a bunch of hyperlinks so as to use that functionality

(From a debugging perspective, the best approach would IMHO be to have
expand-to-execute and expand-to-inspect done by the *exact same* macro
handling functions. However, the preexisting macro expanders don't have
a debug mode, and config.cgi would need to do a *lot* of majick to get a
reasonable list of $HOST*$ and $SERVICE*$ macros' values for a full
expansion, so that's rather unlikely to happen ...)

Kind regards,
J. Bern
--=20
Jochen Bern, Systemingenieur --- LINworks GmbH
Postfach 100121, 64201 Darmstadt | Robert-Koch-Str. 9, 64331 Weiterstadt
PGP (1024D/4096g) FP =3D D18B 41B1 16C0 11BA 7F8C DCF7 E1D5 FAF4 444E 1C2=
7
Tel. +49 6151 9067-231, Zentr. -0, Fax -299 - Amtsg. Darmstadt HRB 85202
Unternehmenssitz Weiterstadt, Gesch=E4ftsf=FChrer Metin Dogan, Oliver Mic=
hel

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--- config.c.orig 2009-05-15 16:02:47.000000000 +0200
+++ config.c 2010-08-25 13:21:51.000000000 +0200
@@ -65,6 +65,7 @@
#define DISPLAY_HOSTDEPENDENCIES 11
#define DISPLAY_HOSTESCALATIONS 12
#define DISPLAY_SERVICEGROUPS 15
+#define DISPLAY_COMMAND_EXPANSION 16211

void document_header(int);
void document_footer(void);
@@ -84,6 +85,7 @@
void display_serviceescalations(void);
void display_hostdependencies(void);
void display_hostescalations(void);
+void display_command_expansion(void);

void unauthorized_message(void);

@@ -91,6 +93,10 @@
authdata current_authdata;

int display_type=DISPLAY_NONE;
+char to_expand[MAX_COMMAND_BUFFER];
+char *command_args[MAX_COMMAND_ARGUMENTS];
+int arg_count[MAX_COMMAND_ARGUMENTS];
+char hashed_color[8];

int embedded=FALSE;

@@ -217,6 +223,10 @@
case DISPLAY_HOSTESCALATIONS:
display_context_help(CONTEXTHELP_CONFIG_HOSTESCALATIONS);
break;
+ case DISPLAY_COMMAND_EXPANSION:
+ /* Reusing DISPLAY_COMMANDS help until further notice */
+ display_context_help(CONTEXTHELP_CONFIG_COMMANDS);
+ break;
default:
display_context_help(CONTEXTHELP_CONFIG_MENU);
break;
@@ -266,6 +276,9 @@
case DISPLAY_HOSTESCALATIONS:
display_hostescalations();
break;
+ case DISPLAY_COMMAND_EXPANSION:
+ display_command_expansion();
+ break;
default:
display_options();
break;
@@ -340,6 +353,7 @@
int x;

variables=getcgivars();
+ to_expand[0]='\0';

for(x=0;variables[x]!=NULL;x++){

@@ -382,12 +396,26 @@
display_type=DISPLAY_HOSTDEPENDENCIES;
else if(!strcmp(variables[x],"hostescalations"))
display_type=DISPLAY_HOSTESCALATIONS;
+ else if(!strcmp(variables[x],"command"))
+ display_type=DISPLAY_COMMAND_EXPANSION;

/* we found the embed option */
else if(!strcmp(variables[x],"embedded"))
embedded=TRUE;
}

+ /* we found the string-to-expand argument */
+ else if(!strcmp(variables[x],"expand")){
+ x++;
+ if(variables[x]==NULL){
+ error=TRUE;
+ break;
+ }
+ strncpy(to_expand,variables[x],MAX_COMMAND_BUFFER);
+ to_expand[MAX_COMMAND_BUFFER-1]='\0';
+ }
+
+
/* we received an invalid argument */
else
error=TRUE;
@@ -420,7 +448,8 @@
return;
}

- printf("Hosts</

...[email truncated]...


This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]