+#ifdef HAVE_PUTENV
+void unputenv(char *p) {
+ char *e = strchr(p, '=');
+ if(!e)
+ return;
+ int len = e - p;
+#ifndef HAVE_UNSETENV
+#ifdef HAVE_MINGW
+ // Windows requires putenv("FOO=") to unset %FOO%
+ len++;
+#endif
+#endif
+ char var[len + 1];
+ memcpy(var, p, len);
+ var[len] = 0;
+#ifdef HAVE_UNSETENV
+ unsetenv(var);
+#else
+ // We must keep what we putenv() around in memory.
+ // To do this without memory leaks, keep things in a list and reuse if possible.
+ static list_t list = {};
+ for(list_node_t *node = list.head; node; node = node->next) {
+ char *data = node->data;
+ if(!strcmp(data, var)) {
+ putenv(data);
+ return;
+ }
+ }
+ char *data = xstrdup(var);
+ list_insert_tail(&list, data);
+ putenv(data);
+#endif
+}
+#else
+void putenv(const char *p) {}
+void unputenv(const char *p) {}
+#endif
+
+bool execute_script(const char *name, char **envp) {
+#ifdef HAVE_SYSTEM
+ char *scriptname;
+ char *interpreter = NULL;
+ config_t *cfg_interpreter;
+ int status, len, i;
+
+ cfg_interpreter = lookup_config(config_tree, "ScriptsInterpreter");
+#ifndef HAVE_MINGW
+ len = xasprintf(&scriptname, "\"%s/%s\"", confbase, name);
+#else
+ if(cfg_interpreter)
+ len = xasprintf(&scriptname, "\"%s/%s\"", confbase, name);
+ else
+ len = xasprintf(&scriptname, "\"%s/%s.bat\"", confbase, name);
+#endif
+ if(len < 0)
+ return false;
+
+ scriptname[len - 1] = '\0';
+
+ /* First check if there is a script */
+ if(access(scriptname + 1, F_OK)) {
+ free(scriptname);
+ return true;
+ }
+
+ // Custom scripts interpreter
+ if(get_config_string(cfg_interpreter, &interpreter)) {
+ // Force custom scripts interpreter allowing execution of scripts on android without execution flag (such as on /sdcard)
+ free(scriptname);
+ len = xasprintf(&scriptname, "%s \"%s/%s\"", interpreter, confbase, name);
+ free(interpreter);
+ if(len < 0)
+ return false;
+ }
+
+ ifdebug(STATUS) logger(LOG_INFO, "Executing script %s", name);
+
+ /* Set environment */
+
+ for(i = 0; envp[i]; i++)
+ putenv(envp[i]);
+
+ scriptname[len - 1] = '\"';
+ status = system(scriptname);
+
+ free(scriptname);
+
+ /* Unset environment */
+
+ for(i = 0; envp[i]; i++)
+ unputenv(envp[i]);
+
+ if(status != -1) {
+#ifdef WEXITSTATUS
+ if(WIFEXITED(status)) { /* Child exited by itself */
+ if(WEXITSTATUS(status)) {
+ logger(LOG_ERR, "Script %s exited with non-zero status %d",
+ name, WEXITSTATUS(status));
+ return false;
+ }
+ } else if(WIFSIGNALED(status)) { /* Child was killed by a signal */
+ logger(LOG_ERR, "Script %s was killed by signal %d (%s)",
+ name, WTERMSIG(status), strsignal(WTERMSIG(status)));
+ return false;
+ } else { /* Something strange happened */
+ logger(LOG_ERR, "Script %s terminated abnormally", name);
+ return false;
+ }
+#endif
+ } else {
+ logger(LOG_ERR, "System call `%s' failed: %s", "system", strerror(errno));
+ return false;
+ }
+#endif
+ return true;
+}