X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_cgi.c;h=f6a5908c4ec5f5ae695057bbc7f6f13fe4e255a4;hb=2e031f6159ca944a9bda3bb8f3bfcdd178d564e0;hp=e79ecb7c1bee78fa1d6ad49a52cbe4b1167cac3e;hpb=5837606887a6d81e8b1f7588525cb1c8783fb62b;p=rrdtool.git

diff --git a/src/rrd_cgi.c b/src/rrd_cgi.c
index e79ecb7..f6a5908 100644
--- a/src/rrd_cgi.c
+++ b/src/rrd_cgi.c
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * RRDtool 1.0.33  Copyright Tobias Oetiker, 1997 - 2000
+ * RRDtool 1.1.x  Copyright Tobias Oetiker, 1997 - 2002
  *****************************************************************************
  * rrd_cgi.c  RRD Web Page Generator
  *****************************************************************************/
@@ -211,8 +211,13 @@ char* rrdsetenv(long argc, char **args){
 char* rrdgetenv(long argc, char **args){
   if (argc != 1) {
     return stralloc("[ERROR: getenv faild because it did not get 1 argument only]");
-  };
-  return stralloc(getenv(args[0]));
+  }
+  else if (getenv(args[0]) == NULL) {
+    return stralloc("");
+  }
+  else {
+    return stralloc(getenv(args[0]));
+  }
 }
 
 char* rrdgoodfor(long argc, char **args){
@@ -454,7 +459,7 @@ char* scanargs(char *aLine, long *argc, char ***args)
   getP = aLine;
   putP = aLine;
   while (*getP && !( !Quote  && (braket == 0) && ((*getP) == '>'))){
-    if (*getP < ' ') *getP = ' '; /*remove all special chars*/
+    if ((unsigned)*getP < ' ') *getP = ' '; /*remove all special chars*/
     switch (*getP) {
     case ' ': 
       if (Quote){