Move add_to_string to "quote.c" and make it extern.

diff --git a/quote.c b/quote.c
index a38786c177d090b36bcd13a13b08dbe42a2c2340..e3a4d4aef3478148ff89aebeba23e1cbf4202ba1 100644 (file)
--- a/quote.c
+++ b/quote.c
@@ -106,6 +106,35 @@ char *sq_quote_argv(const char** argv, int count)
        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;