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-rw-r--r--lib/extra_opts.c155
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1/*****************************************************************************
2*
3* Nagios-plugins extra_opts library
4*
5* License: GPL
6* Copyright (c) 2007 Nagios Plugins Development Team
7*
8* Last Modified: $Date: 2008-03-15 18:42:01 -0400 (Sat, 15 Mar 2008) $
9*
10*
11* This program is free software: you can redistribute it and/or modify
12* it under the terms of the GNU General Public License as published by
13* the Free Software Foundation, either version 3 of the License, or
14* (at your option) any later version.
15*
16* This program is distributed in the hope that it will be useful,
17* but WITHOUT ANY WARRANTY; without even the implied warranty of
18* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19* GNU General Public License for more details.
20*
21* You should have received a copy of the GNU General Public License
22* along with this program. If not, see <http://www.gnu.org/licenses/>.
23*
24* $Id: parse_ini.c 1950 2008-03-15 22:42:01Z dermoth $
25*
26*****************************************************************************/
27
28#include "common.h"
29#include "extra_opts.h"
30#include "parse_ini.h"
31#include "utils_base.h"
32#include <ctype.h>
33
34/* FIXME: copied from utils.h; we should move a bunch of libs! */
35int
36is_option (char *str)
37{
38 if (!str)
39 return 0;
40 else if (strspn (str, "-") == 1 || strspn (str, "-") == 2)
41 return 1;
42 else
43 return 0;
44}
45
46/* this is the externally visible function used by plugins */
47/* Shouldn't se modify directly **argv (passed as a char ***) and argc
48 * (as int *) ?
49 */
50char **np_extra_opts(int argc, char **argv, const char *plugin_name, int *argc_new){
51 np_arg_list *extra_args=NULL, *ea_tmp1=NULL, *ea_tmp2=NULL;
52 char **argv_new=NULL;
53 char *argptr=NULL;
54 int i, j, optfound, ea_num=argc;
55
56 if(argc<2) {
57 /* No arguments provided */
58 *argc_new=argc;
59 argv_new=argv;
60 return argv_new;
61 }
62
63 for(i=1; i<argc; i++){
64 argptr=NULL;
65 optfound=0;
66
67 /* Do we have an extra-opts parameter? */
68 if(strncmp(argv[i], "--extra-opts=", 13)==0){
69 /* It is a single argument with value */
70 argptr=argv[i]+13;
71 /* Delete the extra opts argument */
72 for(j=i;j<argc;j++) argv[j]=argv[j+1];
73 i--;
74 argc--;
75 }else if(strcmp(argv[i], "--extra-opts")==0){
76 if(!is_option(argv[i+1])){
77 /* It is a argument with separate value */
78 argptr=argv[i+1];
79 /* Delete the extra-opts argument/value */
80 for(j=i;j<argc-1;j++) argv[j]=argv[j+2];
81 i-=2;
82 argc-=2;
83 ea_num--;
84 }else{
85 /* It has no value */
86 optfound=1;
87 /* Delete the extra opts argument */
88 for(j=i;j<argc;j++) argv[j]=argv[j+1];
89 i--;
90 argc--;
91 }
92 }
93
94 if(argptr||optfound){
95 /* Process ini section, returning a linked list of arguments */
96 ea_tmp1=np_get_defaults(argptr, plugin_name);
97 if(ea_tmp1==NULL) {
98 /* no extra args? */
99 ea_num--;
100 continue;
101 }
102
103 /* append the list to extra_args */
104 if(extra_args==NULL){
105 extra_args=ea_tmp2=ea_tmp1;
106 while(ea_tmp2->next) {
107 ea_tmp2=ea_tmp2->next;
108 ea_num++;
109 }
110 }else{
111 ea_tmp2=extra_args;
112 while(ea_tmp2->next) {
113 ea_tmp2=ea_tmp2->next;
114 ea_num++;
115 }
116 ea_tmp2->next=ea_tmp1;
117 }
118 ea_tmp1=ea_tmp2=NULL;
119 }
120 /* lather, rince, repeat */
121 }
122
123 if(ea_num==argc && extra_args==NULL){
124 /* No extra-opts */
125 *argc_new=argc;
126 argv_new=argv;
127 return argv_new;
128 }
129
130 /* done processing arguments. now create a new argc/argv set... */
131 argv_new=(char**)malloc((ea_num+1)*sizeof(char**));
132 if(argv_new==NULL) die(STATE_UNKNOWN, _("malloc() failed!\n"));
133
134 /* starting with program name (Should we strdup or just use the poiter?) */
135 argv_new[0]=strdup(argv[0]);
136 *argc_new=1;
137 /* then parsed ini opts (frying them up in the same run) */
138 while(extra_args){
139 argv_new[*argc_new]=strdup(extra_args->arg);
140 *argc_new+=1;
141 ea_tmp1=extra_args;
142 extra_args=extra_args->next;
143 free(ea_tmp1);
144 }
145 /* finally the rest of the argv array (Should we strdup or just use the poiter?) */
146 for (i=1; i<argc; i++){
147 argv_new[*argc_new]=strdup(argv[i]);
148 *argc_new+=1;
149 }
150 /* and terminate. */
151 argv_new[*argc_new]=NULL;
152
153 return argv_new;
154}
155