When processing the `-S' option, work on a copy, so that the command

[libucw.git] / lib / conf.c

diff --git a/lib/conf.c b/lib/conf.c
index effdbd9c81d2e0b1b1692debf8fe9dc91ede4259..b29b768285fb8add587f7443ee155a78180e748c 100644 (file)
--- a/lib/conf.c
+++ b/lib/conf.c
@@ -331,6 +331,41 @@ void cf_read(byte *filename)
        cfdeffile = NULL;
 }
 
+static void cf_opt_S(void)
+{
+       byte *sect,*name,*value;
+       byte *c;
+       byte *msg=NULL;
+       byte arg[strlen(optarg)+1];
+
+       strcpy(arg, optarg);
+       name = arg;
+       c=strchr(name,'=');
+       if(!c){
+               msg="Missing argument";
+               sect=value="";
+       }else{
+               *c++=0;
+               value=c;
+
+               c=strchr(name,'.');
+               if(!c)
+                       sect="";
+               else{
+                       sect=name;
+                       *c++=0;
+                       name=c;
+               }
+
+               if (cfdeffile)
+                       cf_read(cfdeffile);
+               msg=cf_set_item(sect,name,value);
+       }
+       if(msg)
+               die("Invalid command line argument -S%s.%s=%s: %s",sect,name,value,msg);
+
+}
+
 int cf_getopt(int argc,char * const argv[],
                const char *shortopts,const struct option *longopts,
                int *longindex)
@@ -345,35 +380,7 @@ int cf_getopt(int argc,char * const argv[],
                                die("The -S and -C options must precede all other arguments");
                }
                if(res=='S'){
-                       byte *sect,*name,*value;
-                       byte *c;
-                       byte *msg=NULL;
-
-                       name=optarg;
-                       c=strchr(name,'=');
-                       if(!c){
-                               msg="Missing argument";
-                               sect=value="";
-                       }else{
-                               *c++=0;
-                               value=c;
-
-                               c=strchr(name,'.');
-                               if(!c)
-                                       sect="";
-                               else{
-                                       sect=name;
-                                       *c++=0;
-                                       name=c;
-                               }
-
-                               if (cfdeffile)
-                                       cf_read(cfdeffile);
-                               msg=cf_set_item(sect,name,value);
-                       }
-                       if(msg)
-                               die("Invalid command line argument -S%s.%s=%s: %s",sect,name,value,msg);
-
+                       cf_opt_S();
                }else if(res=='C'){
                        cf_read(optarg);
                }else{