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-rw-r--r--source3/web/cgi.c15
-rw-r--r--source3/web/swat.c40
2 files changed, 35 insertions, 20 deletions
diff --git a/source3/web/cgi.c b/source3/web/cgi.c
index b764b6d628..d289613b4b 100644
--- a/source3/web/cgi.c
+++ b/source3/web/cgi.c
@@ -223,6 +223,7 @@ void cgi_load_variables(void)
browser. Also doesn't allow for variables[] containing multiple variables
with the same name and the same or different values.
***************************************************************************/
+
const char *cgi_variable(const char *name)
{
int i;
@@ -234,6 +235,20 @@ const char *cgi_variable(const char *name)
}
/***************************************************************************
+ Version of the above that can't return a NULL pointer.
+***************************************************************************/
+
+const char *cgi_variable_nonull(const char *name)
+{
+ const char *var = cgi_variable(name);
+ if (var) {
+ return var;
+ } else {
+ return "";
+ }
+}
+
+/***************************************************************************
tell a browser about a fatal error in the http processing
***************************************************************************/
static void cgi_setup_error(const char *err, const char *header, const char *info)
diff --git a/source3/web/swat.c b/source3/web/swat.c
index a0dc0f4d31..d1fd0b4f9b 100644
--- a/source3/web/swat.c
+++ b/source3/web/swat.c
@@ -515,7 +515,7 @@ static void commit_parameters(int snum)
while ((parm = lp_next_parameter(snum, &i, 1))) {
slprintf(label, sizeof(label)-1, "parm_%s", make_parm_name(parm->label));
- if ((v = cgi_variable(label))) {
+ if ((v = cgi_variable(label)) != NULL) {
if (parm->flags & FLAG_HIDE) continue;
commit_parameter(snum, parm, v);
}
@@ -678,10 +678,10 @@ static void wizard_page(void)
}
if (cgi_variable("Commit")){
- SerType = atoi(cgi_variable("ServerType"));
- winstype = atoi(cgi_variable("WINSType"));
+ SerType = atoi(cgi_variable_nonull("ServerType"));
+ winstype = atoi(cgi_variable_nonull("WINSType"));
have_home = lp_servicenumber(HOMES_NAME);
- HomeExpo = atoi(cgi_variable("HomeExpo"));
+ HomeExpo = atoi(cgi_variable_nonull("HomeExpo"));
/* Plain text passwords are too badly broken - use encrypted passwords only */
lp_do_parameter( GLOBAL_SECTION_SNUM, "encrypt passwords", "Yes");
@@ -714,7 +714,7 @@ static void wizard_page(void)
break;
case 2:
lp_do_parameter( GLOBAL_SECTION_SNUM, "wins support", "No" );
- lp_do_parameter( GLOBAL_SECTION_SNUM, "wins server", cgi_variable("WINSAddr"));
+ lp_do_parameter( GLOBAL_SECTION_SNUM, "wins server", cgi_variable_nonull("WINSAddr"));
break;
}
@@ -839,7 +839,7 @@ static void globals_page(void)
}
if ( cgi_variable("ViewMode") )
- mode = atoi(cgi_variable("ViewMode"));
+ mode = atoi(cgi_variable_nonull("ViewMode"));
if ( cgi_variable("BasicMode"))
mode = 0;
if ( cgi_variable("AdvMode"))
@@ -915,7 +915,7 @@ static void shares_page(void)
printf("<table>\n");
if ( cgi_variable("ViewMode") )
- mode = atoi(cgi_variable("ViewMode"));
+ mode = atoi(cgi_variable_nonull("ViewMode"));
if ( cgi_variable("BasicMode"))
mode = 0;
if ( cgi_variable("AdvMode"))
@@ -1029,7 +1029,7 @@ static void chg_passwd(void)
int local_flags = 0;
/* Make sure users name has been specified */
- if (strlen(cgi_variable(SWAT_USER)) == 0) {
+ if (strlen(cgi_variable_nonull(SWAT_USER)) == 0) {
printf("<p>%s\n", _(" Must specify \"User Name\" "));
return;
}
@@ -1044,27 +1044,27 @@ static void chg_passwd(void)
* If current user is not root, make sure old password has been specified
* If REMOTE change, even root must provide old password
*/
- if (((!am_root()) && (strlen( cgi_variable(OLD_PSWD)) <= 0)) ||
- ((cgi_variable(CHG_R_PASSWD_FLAG)) && (strlen( cgi_variable(OLD_PSWD)) <= 0))) {
+ if (((!am_root()) && (strlen( cgi_variable_nonull(OLD_PSWD)) <= 0)) ||
+ ((cgi_variable(CHG_R_PASSWD_FLAG)) && (strlen( cgi_variable_nonull(OLD_PSWD)) <= 0))) {
printf("<p>%s\n", _(" Must specify \"Old Password\" "));
return;
}
/* If changing a users password on a remote hosts we have to know what host */
- if ((cgi_variable(CHG_R_PASSWD_FLAG)) && (strlen( cgi_variable(RHOST)) <= 0)) {
+ if ((cgi_variable(CHG_R_PASSWD_FLAG)) && (strlen( cgi_variable_nonull(RHOST)) <= 0)) {
printf("<p>%s\n", _(" Must specify \"Remote Machine\" "));
return;
}
/* Make sure new passwords have been specified */
- if ((strlen( cgi_variable(NEW_PSWD)) <= 0) ||
- (strlen( cgi_variable(NEW2_PSWD)) <= 0)) {
+ if ((strlen( cgi_variable_nonull(NEW_PSWD)) <= 0) ||
+ (strlen( cgi_variable_nonull(NEW2_PSWD)) <= 0)) {
printf("<p>%s\n", _(" Must specify \"New, and Re-typed Passwords\" "));
return;
}
/* Make sure new passwords was typed correctly twice */
- if (strcmp(cgi_variable(NEW_PSWD), cgi_variable(NEW2_PSWD)) != 0) {
+ if (strcmp(cgi_variable_nonull(NEW_PSWD), cgi_variable_nonull(NEW2_PSWD)) != 0) {
printf("<p>%s\n", _(" Re-typed password didn't match new password "));
return;
}
@@ -1091,17 +1091,17 @@ static void chg_passwd(void)
rslt = change_password(host,
- cgi_variable(SWAT_USER),
- cgi_variable(OLD_PSWD), cgi_variable(NEW_PSWD),
+ cgi_variable_nonull(SWAT_USER),
+ cgi_variable_nonull(OLD_PSWD), cgi_variable_nonull(NEW_PSWD),
local_flags);
if(cgi_variable(CHG_S_PASSWD_FLAG)) {
printf("<p>");
if (rslt == True) {
- printf(_(" The passwd for '%s' has been changed."), cgi_variable(SWAT_USER));
+ printf(_(" The passwd for '%s' has been changed."), cgi_variable_nonull(SWAT_USER));
printf("\n");
} else {
- printf(_(" The passwd for '%s' has NOT been changed."), cgi_variable(SWAT_USER));
+ printf(_(" The passwd for '%s' has NOT been changed."), cgi_variable_nonull(SWAT_USER));
printf("\n");
}
}
@@ -1121,7 +1121,7 @@ static void passwd_page(void)
* changed the User box text to another users name, remember it.
*/
if (cgi_variable(SWAT_USER)) {
- new_name = cgi_variable(SWAT_USER);
+ new_name = cgi_variable_nonull(SWAT_USER);
}
if (!new_name) new_name = "";
@@ -1265,7 +1265,7 @@ static void printers_page(void)
printf("<FORM name=\"swatform\" method=post>\n");
if ( cgi_variable("ViewMode") )
- mode = atoi(cgi_variable("ViewMode"));
+ mode = atoi(cgi_variable_nonull("ViewMode"));
if ( cgi_variable("BasicMode"))
mode = 0;
if ( cgi_variable("AdvMode"))
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