return buf;
}
+/*
+ * Append a string to a string buffer, with or without shell quoting.
+ * Return true if the buffer overflowed.
+ */
+int add_to_string(char **ptrp, int *sizep, const char *str, int quote)
+{
+ char *p = *ptrp;
+ int size = *sizep;
+ int oc;
+ int err = 0;
+
+ if (quote)
+ oc = sq_quote_buf(p, size, str);
+ else {
+ oc = strlen(str);
+ memcpy(p, str, (size <= oc) ? size - 1 : oc);
+ }
+
+ if (size <= oc) {
+ err = 1;
+ oc = size - 1;
+ }
+
+ *ptrp += oc;
+ **ptrp = '\0';
+ *sizep -= oc;
+ return err;
+}
+
char *sq_dequote(char *arg)
{
char *dst = arg;