Rewrite the core parts in C. We now provide librc so other programs can

query runlevels, services and state without using bash. We also provide
libeinfo so other programs can easily use our informational functions.

As such, we have dropped the requirement of using bash as the init script
shell. We now use /bin/sh and have strived to make the scripts as portable
as possible. Shells that work are bash and dash. busybox works provided
you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
should disable find too.
zsh and ksh do not work at this time.

Networking support is currently being re-vamped also as it was heavily bash
array based. As such, a new config format is available like so
config_eth0="1.2.3.4/24 5.6.7.8/16"
or like so
config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"

We will still support the old bash array format provided that /bin/sh IS
a link it bash.

ChangeLog for baselayout-1 can be found in our SVN repo.

1 files changed, 146 insertions, 0 deletions

diff --git a/src/fstabinfo.c b/src/fstabinfo.c
new file mode 100644
index 00000000..6f45cc70
--- /dev/null
+++ b/src/fstabinfo.c
@@ -0,0 +1,146 @@
+/*
+   fstabinfo.c
+   Gets information about /etc/fstab.
+
+   Copyright 2007 Gentoo Foundation
+   */
+
+#include <errno.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Yay for linux and it's non liking of POSIX functions.
+   Okay, we could use getfsent but the man page says use getmntent instead
+   AND we don't have getfsent on uclibc or dietlibc for some odd reason. */
+#ifdef __linux__
+#define HAVE_GETMNTENT
+#include <mntent.h>
+#define GET_ENT getmntent (fp)
+#define GET_ENT_FILE(_name) getmntfile (fp, _name)
+#define END_ENT endmntent (fp)
+#define ENT_DEVICE(_ent) ent->mnt_fsname
+#define ENT_FILE(_ent) ent->mnt_dir
+#define ENT_TYPE(_ent) ent->mnt_type
+#define ENT_OPTS(_ent) ent->mnt_opts
+#define ENT_PASS(_ent) ent->mnt_passno
+#else
+#define HAVE_GETFSENT
+#include <fstab.h>
+#define GET_ENT getfsent ()
+#define GET_ENT_FILE(_name) getfsfile (_name)
+#define END_ENT endfsent ()
+#define ENT_DEVICE(_ent) ent->fs_spec
+#define ENT_TYPE(_ent) ent->fs_vfstype
+#define ENT_FILE(_ent) ent->fs_file
+#define ENT_OPTS(_ent) ent->fs_mntops
+#define ENT_PASS(_ent) ent->fs_passno
+#endif
+
+#include "einfo.h"
+
+#ifdef HAVE_GETMNTENT
+static struct mntent *getmntfile (FILE *fp, const char *file)
+{
+  struct mntent *ent;
+
+  while ((ent = getmntent (fp)))
+   if (strcmp (file, ent->mnt_dir) == 0)
+     return (ent);
+
+  return (NULL);
+}
+#endif
+
+int main (int argc, char **argv)
+{
+  int i;
+#ifdef HAVE_GETMNTENT
+  FILE *fp;
+  struct mntent *ent;
+#else
+  struct fstab *ent;
+#endif
+  int result = EXIT_FAILURE;
+  char *p;
+  char *token;
+  int n = 0;
+
+  for (i = 1; i < argc; i++)
+    {
+#ifdef HAVE_GETMNTENT
+      fp = setmntent ("/etc/fstab", "r");
+#endif
+
+      if (strcmp (argv[i], "--fstype") == 0 && i + 1 < argc)
+	{
+	  i++;
+	  p = argv[i];
+	  while ((token = strsep (&p, ",")))
+	    while ((ent = GET_ENT))
+	     if (strcmp (token, ENT_TYPE (ent)) == 0)
+	       printf ("%s\n", ENT_FILE (ent));
+	  result = EXIT_SUCCESS;
+	}
+
+      if (strcmp (argv[i], "--mount-cmd") == 0 && i + 1 < argc)
+	{
+	  i++;
+	  if ((ent = GET_ENT_FILE (argv[i])) == NULL)
+	    continue;
+	  printf ("-o %s -t %s %s %s\n", ENT_OPTS (ent), ENT_TYPE (ent),
+		  ENT_DEVICE (ent), ENT_FILE (ent));
+	  result = EXIT_SUCCESS;
+	}
+
+      if (strcmp (argv[i], "--opts") == 0 && i + 1 < argc)
+	{
+	  i++;
+	  if ((ent = GET_ENT_FILE (argv[i])) == NULL)
+	    continue;
+	  printf ("%s\n", ENT_OPTS (ent));
+	  result = EXIT_SUCCESS;
+	}
+	  
+      if (strcmp (argv[i], "--passno") == 0 && i + 1 < argc)
+	{
+	  i++;
+	  switch (argv[i][0])
+	    {
+	    case '=':
+	    case '<':
+	    case '>':
+	      if (sscanf (argv[i] + 1, "%d", &n) != 1)
+		eerrorx ("%s: invalid passno %s", argv[0], argv[i] + 1);
+
+	      while ((ent = GET_ENT))
+		{
+		  if (((argv[i][0] == '=' && n == ENT_PASS (ent)) ||
+		       (argv[i][0] == '<' && n > ENT_PASS (ent)) ||
+		       (argv[i][0] == '>' && n < ENT_PASS (ent))) &&
+		      strcmp (ENT_FILE (ent), "none") != 0)
+		    printf ("%s\n", ENT_FILE (ent));
+		}
+
+	    default:
+	      if ((ent = GET_ENT_FILE (argv[i])) == NULL)
+		continue;
+	      printf ("%d\n", ENT_PASS (ent));
+	      result = EXIT_SUCCESS;
+	    }
+	}
+
+      END_ENT;
+
+      if (result != EXIT_SUCCESS)
+	{
+	  eerror ("%s: unknown option `%s'", basename (argv[0]), argv[i]);
+	  break;
+	}
+ 
+    }
+
+  exit (result);
+}
+