www-cgi/: Centralize environment variable filtering.

[userv-utils.git] / www-cgi / ucgitarget.c

diff --git a/www-cgi/ucgitarget.c b/www-cgi/ucgitarget.c
index 96372353c19cbf441151a942bbe1d5be6d4e4b3b..a4b5690d3bc9d3d53f725c947f977f797439c5f9 100644 (file)
--- a/www-cgi/ucgitarget.c
+++ b/www-cgi/ucgitarget.c
@@ -32,12 +32,17 @@
 
 #include "ucgi.h"
 
+static void setenvar(const char *fulln,
+                    const char *en, const char *ep, void *p) {
+  xsetenv(en, ep, 1);
+  unsetenv(fulln);
+}
+
 int main(int argc, const char **argv) {
-  char *uservarn, *scriptpath, *newvar;
-  const char *nextslash, *lastslash, *pathi, *ev, *ev2, *en, *scriptdir, *av;
-  const char *const *ep;
+  char *scriptpath, *newvar;
+  const char *nextslash, *lastslash, *pathi, *ev, *ev2, *scriptdir, *av;
   const char **arguments;
-  size_t scriptdirlen, scriptpathlen, l, uservarnl;
+  size_t scriptdirlen, scriptpathlen, l;
   struct stat stab;
   int r, nargs;
 
@@ -55,17 +60,7 @@ int main(int argc, const char **argv) {
   scriptdir= newvar;
   scriptdirlen= strlen(scriptdir);
 
-  uservarn= 0;
-  uservarnl= 0;
-  for (ep= envok; (en= *ep); ep++) {
-    l= strlen(en)+11;
-    if (uservarnl<l) { uservarn= xrealloc(uservarn,l); uservarnl= l; }
-    sprintf(uservarn,"USERV_U_E_%s",en);
-    ev= getenv(uservarn); if (!ev) continue;
-    if (strlen(ev) > MAX_ENVVAR_VALUE) error("environment variable too long");
-    if (setenv(en,ev,1)) syserror("setenv");
-    unsetenv(uservarn);
-  }
+  filter_environment(0, "USERV_U_E_", envok, setenvar, 0);
 
   scriptpath= 0;
   pathi= getenv("PATH_INFO");