Add extra-opts argument parsing with tests

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1961 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 155 insertions, 0 deletions

diff --git a/lib/extra_opts.c b/lib/extra_opts.c
new file mode 100644
index 00000000..3a0ce045
--- /dev/null
+++ b/lib/extra_opts.c
@@ -0,0 +1,155 @@
+/*****************************************************************************
+* 
+* Nagios-plugins extra_opts library
+* 
+* License: GPL
+* Copyright (c) 2007 Nagios Plugins Development Team
+* 
+* Last Modified: $Date: 2008-03-15 18:42:01 -0400 (Sat, 15 Mar 2008) $
+* 
+* 
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+* 
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+* 
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* 
+* $Id: parse_ini.c 1950 2008-03-15 22:42:01Z dermoth $
+* 
+*****************************************************************************/
+
+#include "common.h"
+#include "extra_opts.h"
+#include "parse_ini.h"
+#include "utils_base.h"
+#include <ctype.h>
+
+/* FIXME: copied from utils.h; we should move a bunch of libs! */
+int
+is_option (char *str)
+{
+	if (!str)
+		return 0;
+	else if (strspn (str, "-") == 1 || strspn (str, "-") == 2)
+		return 1;
+	else
+		return 0;
+}
+
+/* this is the externally visible function used by plugins */
+/* Shouldn't se modify directly **argv (passed as a char ***) and argc
+ * (as int *) ?
+ */
+char **np_extra_opts(int argc, char **argv, const char *plugin_name, int *argc_new){
+	np_arg_list *extra_args=NULL, *ea_tmp1=NULL, *ea_tmp2=NULL;
+	char **argv_new=NULL;
+	char *argptr=NULL;
+	int i, j, optfound, ea_num=argc;
+
+	if(argc<2) {
+		/* No arguments provided */
+		*argc_new=argc;
+		argv_new=argv;
+		return argv_new;
+	}
+
+	for(i=1; i<argc; i++){
+		argptr=NULL;
+		optfound=0;
+
+		/* Do we have an extra-opts parameter? */
+		if(strncmp(argv[i], "--extra-opts=", 13)==0){
+			/* It is a single argument with value */
+			argptr=argv[i]+13;
+			/* Delete the extra opts argument */
+			for(j=i;j<argc;j++) argv[j]=argv[j+1];
+			i--;
+			argc--;
+		}else if(strcmp(argv[i], "--extra-opts")==0){
+			if(!is_option(argv[i+1])){
+				/* It is a argument with separate value */
+				argptr=argv[i+1];
+				/* Delete the extra-opts argument/value */
+				for(j=i;j<argc-1;j++) argv[j]=argv[j+2];
+				i-=2;
+				argc-=2;
+				ea_num--;
+			}else{
+				/* It has no value */
+				optfound=1;
+				/* Delete the extra opts argument */
+				for(j=i;j<argc;j++) argv[j]=argv[j+1];
+				i--;
+				argc--;
+			}
+		}
+
+		if(argptr||optfound){
+			/* Process ini section, returning a linked list of arguments */
+			ea_tmp1=np_get_defaults(argptr, plugin_name);
+			if(ea_tmp1==NULL) {
+				/* no extra args? */
+				ea_num--;
+				continue;
+			}
+
+			/* append the list to extra_args */
+			if(extra_args==NULL){
+				extra_args=ea_tmp2=ea_tmp1;
+				while(ea_tmp2->next) {
+					ea_tmp2=ea_tmp2->next;
+					ea_num++;
+				}
+			}else{
+				ea_tmp2=extra_args;
+				while(ea_tmp2->next) {
+					ea_tmp2=ea_tmp2->next;
+					ea_num++;
+				}
+				ea_tmp2->next=ea_tmp1;
+			}
+			ea_tmp1=ea_tmp2=NULL;
+		}
+		/* lather, rince, repeat */
+	}
+
+	if(ea_num==argc && extra_args==NULL){
+		/* No extra-opts */
+		*argc_new=argc;
+		argv_new=argv;
+		return argv_new;
+	}
+
+	/* done processing arguments. now create a new argc/argv set... */
+	argv_new=(char**)malloc((ea_num+1)*sizeof(char**));
+	if(argv_new==NULL) die(STATE_UNKNOWN, _("malloc() failed!\n"));
+
+	/* starting with program name (Should we strdup or just use the poiter?) */
+	argv_new[0]=strdup(argv[0]);
+	*argc_new=1;
+	/* then parsed ini opts (frying them up in the same run) */
+	while(extra_args){
+		argv_new[*argc_new]=strdup(extra_args->arg);
+		*argc_new+=1;
+		ea_tmp1=extra_args;
+		extra_args=extra_args->next;
+		free(ea_tmp1);
+	}
+	/* finally the rest of the argv array (Should we strdup or just use the poiter?) */
+	for (i=1; i<argc; i++){
+		argv_new[*argc_new]=strdup(argv[i]);
+		*argc_new+=1;
+	}
+	/* and terminate. */
+	argv_new[*argc_new]=NULL;
+
+	return argv_new;
+}
+