Add some .mk stubs to impersonate bsk .mk files to make writing our Makefiles easier. libeinfo, librc and rc now have their own seperate directories. More work is needed to tidy this up though.

1 files changed, 233 insertions, 0 deletions

diff --git a/src/rc/checkpath.c b/src/rc/checkpath.c
new file mode 100644
index 0000000..612a076
--- /dev/null
+++ b/src/rc/checkpath.c
@@ -0,0 +1,233 @@
+/*
+   checkpath.c
+   Checks for the existance of a file or directory and creates it
+   if necessary. It can also correct its ownership.
+   */
+
+/* 
+ * Copyright 2007 Roy Marples
+ * All rights reserved
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "builtins.h"
+#include "einfo.h"
+#include "rc-misc.h"
+
+static const char *applet;
+
+static int do_check (char *path, uid_t uid, gid_t gid, mode_t mode, int file)
+{
+	struct stat st;
+
+	memset (&st, 0, sizeof (struct stat));
+
+	if (stat (path, &st)) {
+		if (file) {
+			int fd;
+			einfo ("%s: creating file", path);
+			if ((fd = open (path, O_CREAT)) == -1) {
+				eerror ("%s: open: %s", applet, strerror (errno));
+				return (-1);
+			}
+			close (fd);	
+		} else {
+			einfo ("%s: creating directory", path);
+			if (! mode)
+				mode = S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH;
+			if (mkdir (path, mode)) {
+				eerror ("%s: mkdir: %s", applet, strerror (errno));
+				return (-1);
+			}
+			mode = 0;
+		}
+	} else {
+		if ((file && S_ISDIR (st.st_mode)) ||
+			(! file && ! S_ISDIR (st.st_mode)))
+		{
+			if (file)
+				eerror ("%s: is a directory", path);
+			else
+				eerror ("%s: is a file", path);
+			return (-1);
+		}
+	}
+	
+	if (mode && (st.st_mode & 0777) != mode) {
+		einfo ("%s: correcting mode", applet);
+		if (chmod (path, mode)) {
+			eerror ("%s: chmod: %s", applet, strerror (errno));
+			return (-1);
+		}
+	}
+
+	if (st.st_uid != uid || st.st_gid != gid) {
+		if (st.st_dev || st.st_ino)
+			einfo ("%s: correcting owner", path);
+		if (chown (path, uid, gid)) {
+			eerror ("%s: chown: %s", applet, strerror (errno));
+			return (-1);
+		}
+	}
+
+	return (0);
+}
+
+/* Based on busybox */
+static int parse_mode (mode_t *mode, char *text)
+{
+	/* Check for a numeric mode */
+	if ((*mode - '0') < 8) {
+		char *p;
+		unsigned long l = strtoul (text, &p, 8);
+		if (*p || l > 07777U) {
+			errno = EINVAL;
+			return (-1);
+		}
+		*mode = l;
+		return (0);
+	}
+
+	/* We currently don't check g+w type stuff */
+	errno = EINVAL;
+	return (-1);
+}
+
+static int parse_owner (struct passwd **user, struct group **group,
+						const char *owner)
+{
+	char *u = xstrdup (owner);
+	char *g = strchr (u, ':');
+	int id = 0;
+	int retval = 0;
+
+	if (g)
+		*g++ = '\0';
+
+	if (user && *u) {
+		if (sscanf (u, "%d", &id) == 1)
+			*user = getpwuid (id);
+		else	
+			*user = getpwnam (u);
+		if (! *user)
+			retval = -1;
+	}
+
+	if (group && g && *g) {
+		if (sscanf (g, "%d", &id) == 1)
+			*group = getgrgid (id);
+		else
+			*group = getgrnam (g);
+		if (! *group)
+			retval = -1;
+	}
+
+	free (u);
+	return (retval);
+}
+
+#include "_usage.h"
+#define extraopts "dir1 dir2 ..."
+#define getoptstring "fm:o:" getoptstring_COMMON
+static struct option longopts[] = {
+	{ "directory",      0, NULL, 'd'},
+	{ "file",           0, NULL, 'f'},
+	{ "mode",			1, NULL, 'm'},
+	{ "owner",          1, NULL, 'o'},
+	longopts_COMMON
+};
+static const char * const longopts_help[] = {
+	"Check if a directory",
+	"Check if a file",
+	"Mode to check",
+	"Owner to check (user:group)",
+	longopts_help_COMMON
+};
+#include "_usage.c"
+
+int checkpath (int argc, char **argv)
+{
+	int opt;
+	uid_t uid = geteuid();
+	gid_t gid = getgid();
+	mode_t mode = 0;
+	struct passwd *pw = NULL;
+	struct group *gr = NULL;
+	bool file = 0;
+	int retval = EXIT_SUCCESS;
+
+	applet = basename_c (argv[0]);
+
+	while ((opt = getopt_long (argc, argv, getoptstring,
+							   longopts, (int *) 0)) != -1)
+	{
+		switch (opt) {
+			case 'd':
+				file = 0;
+				break;
+			case 'f':
+				file = 1;
+				break;
+			case 'm':
+				if (parse_mode (&mode, optarg) != 0)
+					eerrorx ("%s: invalid mode `%s'", applet, optarg);
+				break;
+			case 'o':
+				if (parse_owner (&pw, &gr, optarg) != 0)
+					eerrorx ("%s: owner `%s' not found", applet, optarg);
+				break;
+
+				case_RC_COMMON_GETOPT
+		}
+	}
+
+	if (optind >= argc)
+		usage (EXIT_FAILURE);
+
+	if (pw) {
+		uid = pw->pw_uid;
+		gid = pw->pw_gid;
+	}
+	if (gr)
+		gid = gr->gr_gid;
+
+	while (optind < argc) {
+		if (do_check (argv[optind], uid, gid, mode, file))
+			retval = EXIT_FAILURE;
+		optind++;
+	}
+
+	exit (retval);
+}