1 files changed, 41 insertions, 0 deletions
diff --git a/test/src/checkaccess.c b/test/src/checkaccess.c
new file mode 100644
index 000000000..926daa0fe
--- /dev/null
+++ b/test/src/checkaccess.c
@@ -0,0 +1,41 @@
+/* $Cambridge: exim/test/src/checkaccess.c,v 1.1 2006/02/06 16:24:05 ph10 Exp $ */
+
+/* This is a baby program that is run as root from the runtest script. It is
+passed the Exim uid and gid as arguments, and the name of a file in the
+test-suite directory. It gives up all supplementary groups, changes to the
+given uid/gid, and then tries to read the file. The yield is 0 if that is
+successful, and non-zero otherwise (use different values to aid debugging). See
+comments in the exim.c source file about the use of setgroups() for getting rid
+of extraneous groups. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include <stdio.h>
+
+
+int main(int argc, char **argv)
+{
+int fd;
+gid_t group_list[10];
+struct passwd *pw = getpwnam(argv[2]);
+struct group *gr = getgrnam(argv[3]);
+
+if (pw == NULL) return 1;
+if (gr == NULL) return 2;
+if (setgroups(0, NULL) != 0 && setgroups(1, group_list) != 0) return 4;
+if (setgid(gr->gr_gid) != 0) return 5;
+if (setuid(pw->pw_uid) != 0) return 6;
+
+fd = open(argv[1], O_RDONLY);
+if (fd < 0) return 7;
+
+close(fd);
+return 0;
+}
+
+/* End */