Git-Url:
http://git.frugalware.org/gitweb/gitweb.cgi?p=frugalwareutils.git;a=commitdiff;h=3350544f1de8dbc34aa04ccec5b3994c34e24c7c
commit 3350544f1de8dbc34aa04ccec5b3994c34e24c7c
Author: James Buren <r...@frugalware.org>
Date: Fri Feb 24 00:26:43 2012 -0600
initial draft of new libfwgrubconfig
diff --git a/libfwgrubconfig/new.c b/libfwgrubconfig/new.c
new file mode 100644
index 0000000..eec56cc
--- /dev/null
+++ b/libfwgrubconfig/new.c
@@ -0,0 +1,139 @@
+/*
+ * libfwgrubconfig.c for frugalwareutils
+ *
+ * Copyright (c) 2006, 2007, 2008, 2009, 2010, 2011 by Miklos Vajna
<vmik...@frugalware.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <regex.h>
+#include <unistd.h>
+#include <limits.h>
+#include "libfwgrubconfig.h"
+
+#define SPACE " \t\r\n\v\f"
+#define DIGIT "0123456789"
+#define FWGRUB_LOGDEV "/dev/tty4"
+
+static
+char *guess_mbr_device(void)
+{
+ FILE *f;
+ char line[LINE_MAX], *p;
+ int i, j;
+ regex_t re;
+ static char root[4096];
+
+ f = fopen("/proc/partitions","rb");
+
+ if(!f)
+ return 0;
+
+ if(regcomp(&re,"^[shv]d[a-z]$",REG_EXTENDED | REG_NOSUB | REG_NEWLINE))
+ {
+ fclose(f);
+
+ return 0;
+ }
+
+ for( i = 1, *root = 0 ; fgets(line,sizeof line,f) ; ++i )
+ {
+ if(i < 3)
+ continue;
+
+ p = line + strspn(line,SPACE);
+
+ for( j = 0 ; j < 3 ; ++j )
+ {
+ p += strspn(p,DIGIT);
+
+ p += strspn(p,SPACE);
+ }
+
+ if(!regexec(&re,p,0,0,0))
+ {
+ strcpy(root,"/dev/");
+ strcpy(root,p);
+ p = strchr(root,'\n');
+ if(p)
+ *p = 0;
+ break;
+ }
+ }
+
+ fclose(f);
+
+ regfree(&re);
+
+ if(!*root)
+ return 0;
+
+ return root;
+}
+
+/** Installs grub to a given target
+ * @param mode FWGRUB_INSTALL_MBR, FWGRUB_INSTALL_EFI
+ * @return 0 on succcess, 1 on error
+ */
+
+int fwgrub_install(enum fwgrub_install_mode mode)
+{
+ char cmd[4096], *mbr;
+ pid_t pid;
+ int status;
+
+ /* First, define the common parts of the install command. */
+ strcpy(cmd,"grub-install --recheck --no-floppy --boot-directory=/boot
");
+
+ /* Now, define additional arguments based on installation mode. */
+ switch(mode)
+ {
+ case FWGRUB_INSTALL_MBR:
+ mbr = guess_mbr_device();
+ if(!mbr)
+ return 1;
+ strcat(cmd,mbr);
+ break;
+
+ case FWGRUB_INSTALL_EFI:
+ strcat(cmd,"--root-directory=/boot/efi
--bootloader-id=frugalware");
+ if(mkdir("/boot/efi",0755))
+ return 1;
+ break;
+ }
+
+ /* Setup logging. */
+ strcat(cmd,FWGRUB_LOGDEV " 2>&1");
+
+ pid = fork();
+
+ if(!pid)
+ {
+ execl("/bin/sh","/bin/sh","-c",cmd,(void *) 0);
+
+ _exit(EXIT_FAILURE);
+ }
+ else if(id == -1)
+ return 1;
+
+ if(waitpid(pid,&status,0) == -1 || !WIFEXITED(status) ||
WEXITSTATUS(status))
+ return 1;
+
+ return 0;
+}
diff --git a/libfwgrubconfig/new.h b/libfwgrubconfig/new.h
new file mode 100644
index 0000000..f676d41
--- /dev/null
+++ b/libfwgrubconfig/new.h
@@ -0,0 +1,29 @@
+/*
+ * libfwgrubconfig.h for frugalwareutils
+ *
+ * Copyright (c) 2006 by Miklos Vajna <vmik...@frugalware.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+enum fwgrub_install_mode
+{
+ FWGRUB_INSTALL_MBR,
+ FWGRUB_INSTALL_EFI
+};
+
+int fwgrub_install(enum fwgrub_install_mode mode);
+void fwgrub_create_menu(FILE *fp);
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