sendmail: work around (bogus) gcc warning

diff --git a/networking/sendmail.c b/networking/sendmail.c
index e6af3d4..c605d7c 100644 (file)
--- a/networking/sendmail.c
+++ b/networking/sendmail.c
@@ -255,7 +255,8 @@ static void pop3_message(const char *filename)
 }
 #endif
 
-static char *parse_url(char *url, char **user, char **pass)
+// NB: parse_url can modify url[] (despite const), but only if '@' is there
+static const char *parse_url(const char *url, const char **user, const char **pass)
 {
        // parse [user[:pass]@]host
        // return host
@@ -284,8 +285,8 @@ int sendgetmail_main(int argc UNUSED_PARAM, char **argv)
 {
        llist_t *opt_attachments = NULL;
        char *opt_from;
-       char *opt_user;
-       char *opt_pass;
+       const char *opt_user;
+       const char *opt_pass;
        enum {
                OPT_w = 1 << 0,         // network timeout
                OPT_H = 1 << 1,         // [user:password@]server[:port]
@@ -344,7 +345,7 @@ int sendgetmail_main(int argc UNUSED_PARAM, char **argv)
        // fetch username and password, if any
        // NB: parse_url modifies opt_connect[] ONLY if '@' is there.
        // Thus "127.0.0.1" won't be modified, an is ok that it is RO.
-       opt_connect = parse_url((char*)opt_connect, &opt_user, &opt_pass);
+       opt_connect = parse_url(opt_connect, &opt_user, &opt_pass);
 //     bb_error_msg("H[%s] U[%s] P[%s]", opt_connect, opt_user, opt_pass);
 
        // username must be defined!
@@ -405,7 +406,7 @@ int sendgetmail_main(int argc UNUSED_PARAM, char **argv)
                // set sender
                // NOTE: if password has not been specified
                // then no authentication is possible
-               code = (opt_pass) ? -1 : 250;
+               code = (opt_pass ? -1 : 250);
                // first try softly without authentication
                while (250 != smtp_checkp("MAIL FROM:<%s>", opt_from, code)) {
                        // MAIL FROM failed -> authentication needed