From 0e5b2871ca6456b01d4bf037a6e68badf1ff1a41 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henryk=20Pl=C3=B6tz?= <henryk@ploetzli.ch>
Date: Fri, 3 Oct 2014 19:58:52 +0200
Subject: Initial commit of djbdns-1.05.tar.gz Source was
 http://cr.yp.to/djbdns/djbdns-1.05.tar.gz, SHA1
 2efdb3a039d0c548f40936aa9cb30829e0ce8c3d

---
 generic-conf.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 generic-conf.c

(limited to 'generic-conf.c')

diff --git a/generic-conf.c b/generic-conf.c
new file mode 100644
index 0000000..db4aa1d
--- /dev/null
+++ b/generic-conf.c
@@ -0,0 +1,99 @@
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "strerr.h"
+#include "buffer.h"
+#include "open.h"
+#include "generic-conf.h"
+
+static const char *fatal;
+static const char *dir;
+static const char *fn;
+
+static int fd;
+static char buf[1024];
+static buffer ss;
+
+void init(const char *d,const char *f)
+{
+  dir = d;
+  fatal = f;
+  umask(022);
+  if (mkdir(dir,0700) == -1)
+    strerr_die4sys(111,fatal,"unable to create ",dir,": ");
+  if (chmod(dir,03755) == -1)
+    strerr_die4sys(111,fatal,"unable to set mode of ",dir,": ");
+  if (chdir(dir) == -1)
+    strerr_die4sys(111,fatal,"unable to switch to ",dir,": ");
+}
+
+void fail(void)
+{
+  strerr_die6sys(111,fatal,"unable to create ",dir,"/",fn,": ");
+}
+
+void makedir(const char *s)
+{
+  fn = s;
+  if (mkdir(fn,0700) == -1) fail();
+}
+
+void start(const char *s)
+{
+  fn = s;
+  fd = open_trunc(fn);
+  if (fd == -1) fail();
+  buffer_init(&ss,buffer_unixwrite,fd,buf,sizeof buf);
+}
+
+void outs(const char *s)
+{
+  if (buffer_puts(&ss,s) == -1) fail();
+}
+
+void out(const char *s,unsigned int len)
+{
+  if (buffer_put(&ss,s,len) == -1) fail();
+}
+
+void copyfrom(buffer *b)
+{
+  if (buffer_copy(&ss,b) < 0) fail();
+}
+
+void finish(void)
+{
+  if (buffer_flush(&ss) == -1) fail();
+  if (fsync(fd) == -1) fail();
+  close(fd);
+}
+
+void perm(int mode)
+{
+  if (chmod(fn,mode) == -1) fail();
+}
+
+void owner(int uid,int gid)
+{
+  if (chown(fn,uid,gid) == -1) fail();
+}
+
+void makelog(const char *user,int uid,int gid)
+{
+  makedir("log");
+  perm(02755);
+  makedir("log/main");
+  owner(uid,gid);
+  perm(02755);
+  start("log/status");
+  finish();
+  owner(uid,gid);
+  perm(0644);
+
+  start("log/run");
+  outs("#!/bin/sh\nexec");
+  outs(" setuidgid "); outs(user);
+  outs(" multilog t ./main\n");
+  finish();
+  perm(0755);
+}
-- 
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