+/* Avoid potentially exposing a password in a string about to be logged */
+
+uschar *
+expand_hide_passwords(uschar * s)
+{
+return ( ( Ustrstr(s, "failed to expand") != NULL
+ || Ustrstr(s, "expansion of ") != NULL
+ )
+ && ( Ustrstr(s, "mysql") != NULL
+ || Ustrstr(s, "pgsql") != NULL
+ || Ustrstr(s, "redis") != NULL
+ || Ustrstr(s, "sqlite") != NULL
+ || Ustrstr(s, "ldap:") != NULL
+ || Ustrstr(s, "ldaps:") != NULL
+ || Ustrstr(s, "ldapi:") != NULL
+ || Ustrstr(s, "ldapdn:") != NULL
+ || Ustrstr(s, "ldapm:") != NULL
+ ) )
+ ? US"Temporary internal error" : s;
+}
+
+
+/* Read given named file into big_buffer. Use for keying material etc.
+The content will have an ascii NUL appended.
+
+Arguments:
+ filename as it says
+
+Return: pointer to buffer, or NULL on error.
+*/
+
+uschar *
+expand_file_big_buffer(const uschar * filename)
+{
+int fd, off = 0, len;
+
+if ((fd = open(CS filename, O_RDONLY)) < 0)
+ {
+ log_write(0, LOG_MAIN | LOG_PANIC, "unable to open file for reading: %s",
+ filename);
+ return NULL;
+ }
+
+do
+ {
+ if ((len = read(fd, big_buffer + off, big_buffer_size - 2 - off)) < 0)
+ {
+ (void) close(fd);
+ log_write(0, LOG_MAIN|LOG_PANIC, "unable to read file: %s", filename);
+ return NULL;
+ }
+ off += len;
+ }
+while (len > 0);
+
+(void) close(fd);
+big_buffer[off] = '\0';
+return big_buffer;
+}
+
+
+
+/*************************************************
+* Error-checking for testsuite *
+*************************************************/
+typedef struct {
+ uschar * region_start;
+ uschar * region_end;
+ const uschar *var_name;
+ const uschar *var_data;
+} err_ctx;
+
+static void
+assert_variable_notin(uschar * var_name, uschar * var_data, void * ctx)
+{
+err_ctx * e = ctx;
+if (var_data >= e->region_start && var_data < e->region_end)
+ {
+ e->var_name = CUS var_name;
+ e->var_data = CUS var_data;
+ }
+}
+
+void
+assert_no_variables(void * ptr, int len, const char * filename, int linenumber)
+{
+err_ctx e = { .region_start = ptr, .region_end = US ptr + len,
+ .var_name = NULL, .var_data = NULL };
+int i;
+var_entry * v;
+
+/* check acl_ variables */
+tree_walk(acl_var_c, assert_variable_notin, &e);
+tree_walk(acl_var_m, assert_variable_notin, &e);
+
+/* check auth<n> variables */
+for (i = 0; i < AUTH_VARS; i++) if (auth_vars[i])
+ assert_variable_notin(US"auth<n>", auth_vars[i], &e);
+
+/* check regex<n> variables */
+for (i = 0; i < REGEX_VARS; i++) if (regex_vars[i])
+ assert_variable_notin(US"regex<n>", regex_vars[i], &e);
+
+/* check known-name variables */
+for (v = var_table; v < var_table + var_table_size; v++)
+ if (v->type == vtype_stringptr)
+ assert_variable_notin(US v->name, *(USS v->value), &e);
+
+/* check dns and address trees */
+tree_walk(tree_dns_fails, assert_variable_notin, &e);
+tree_walk(tree_duplicates, assert_variable_notin, &e);
+tree_walk(tree_nonrecipients, assert_variable_notin, &e);
+tree_walk(tree_unusable, assert_variable_notin, &e);
+
+if (e.var_name)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE,
+ "live variable '%s' destroyed by reset_store at %s:%d\n- value '%.64s'",
+ e.var_name, filename, linenumber, e.var_data);
+}
+
+
git://git.exim.org / exim.git / blobdiff