Make setgroups(3) function optional
authorAlexander Barton <alex@barton.de>
Sat, 6 Jun 2015 20:19:47 +0000 (22:19 +0200)
committerAlexander Barton <alex@barton.de>
Sat, 6 Jun 2015 20:19:47 +0000 (22:19 +0200)
For example, Interix is missing this function, which prevented
ngIRCd to build on this platform. When setgroups(3) isn't available,
a warning message is issued when ngIRCd starts up.

configure.ng
src/ngircd/ngircd.c

index bd40694..34094a4 100644 (file)
@@ -221,8 +221,8 @@ AC_CHECK_FUNCS([ \
 # Optional functions
 AC_CHECK_FUNCS_ONCE([
        arc4random arc4random_stir gai_strerror getnameinfo inet_aton \
-       sigaction sigprocmask snprintf vsnprintf strdup strndup strlcpy strlcat \
-       strtok_r unsetenv waitpid])
+       setgroups sigaction sigprocmask snprintf strdup strlcat strlcpy \
+       strndup strtok_r unsetenv vsnprintf waitpid])
 
 WORKING_GETADDRINFO
 
index 1b20597..0e8acb5 100644 (file)
@@ -724,6 +724,7 @@ NGIRCd_Init(bool NGIRCd_NoDaemon)
                        if (real_errno != EPERM) 
                                goto out;
                }
+#ifdef HAVE_SETGROUPS
                if (setgroups(0, NULL) != 0) {
                        real_errno = errno;
                        Log(LOG_ERR, "Can't drop supplementary group IDs: %s!",
@@ -731,6 +732,10 @@ NGIRCd_Init(bool NGIRCd_NoDaemon)
                        if (real_errno != EPERM)
                                goto out;
                }
+#else
+               Log(LOG_WARNING,
+                   "Can't drop supplementary group IDs: setgroups(3) missing!");
+#endif
        }
 #endif