/* libmondo-files.c file manipulation
$Id: libmondo-files.c 30 2005-09-28 23:32:28Z bcornec $
.
04/16/04
- find_home_of_exe() really does return NULL now if file not found
03/22/04
- added mode_of_file()
10/02/03
- cleaned up grab_percentage_from_last_line_of_file()
09/18
- added int make_grub_install_scriptlet()
09/16
- cleaned up mkisofs feedback window
09/12
- fixed Teuton-hostile bug in size_of_all_biggiefiles_K()
09/05
- added size_of_partition_in_mountlist_K()
- size_of_all_biggiefiles_K() now calls get_phys_size_of_drive(fname)
07/02
- fixed calls to popup_and_get_string()
05/19
- added CP_BIN
05/05
- added Joshua Oreman's FreeBSD patches
05/04
- find_home_of_exe() now returns NULL if file not found
04/26
- if >4 media est'd, say one meeeellion
04/25
- fixed minor bug in find_home_of_exe()
04/24
- added lots of assert()'s and log_OS_error()'s
04/07
- fix find_home_of_exe()
- cleaned up code a bit
03/27
- copy_mondo_and_mindi_stuff --- if _homedir_/payload.tgz exists then untar it to CD
01/14/2003
- if backup media type == nfs then don't estimate no. of media reqd
11/25/2002
- don't log/echo estimated # of media required if >=50
10/01 - 11/09
- chmod uses 0x, not decimal :)
- added is_this_file_compressed()
- replace convoluted grep with wc (KP)
09/01 - 09/30
- only show "number of media" estimate if no -x
- run_program_and_log_output() now takes boolean operator to specify
whether it will log its activities in the event of _success_
08/01 - 08/31
- handle unknown media sizes
- cleaned up some log_it() calls
07/24
- created
*/
/**
* @file
* Functions to manipulate files.
*/
#include "my-stuff.h"
#include "mondostructures.h"
#include "libmondo-files.h"
#include "lib-common-externs.h"
#include "libmondo-tools-EXT.h"
#include "libmondo-gui-EXT.h"
#include "libmondo-devices-EXT.h"
#include "libmondo-fork-EXT.h"
#include "libmondo-string-EXT.h"
/*@unused@*/
//static char cvsid[] = "$Id: libmondo-files.c 30 2005-09-28 23:32:28Z bcornec $";
extern char err_log_lines[NOOF_ERR_LINES][MAX_STR_LEN];
extern int g_currentY;
extern char *g_mondo_home;
/**
* @addtogroup fileGroup
* @{
*/
/**
* Get an md5 checksum of the specified file.
* @param filename The file to checksum.
* @return The 32-character ASCII representation of the 128-bit checksum.
* @note The returned string points to static storage that will be overwritten with each call.
*/
char *
calc_checksum_of_file (char *filename)
{
/*@ buffers ******************************************************/
static char output[MAX_STR_LEN];
char command[MAX_STR_LEN*2];
char tmp[MAX_STR_LEN];
/*@ pointers *****************************************************/
char *p;
FILE *fin;
/*@ initialize pointers ******************************************/
p = output;
/*@***************************************************************/
assert_string_is_neither_NULL_nor_zerolength(filename);
if (does_file_exist (filename))
{
sprintf (command, "md5sum \"%s\"", filename);
fin = popen (command, "r");
if (fin)
{
(void) fgets (output, MAX_STR_LEN, fin);
p = strchr (output, ' ');
paranoid_pclose (fin);
}
}
else
{
sprintf (tmp, "File '%s' not found; cannot calc checksum", filename);
log_it (tmp);
}
if (p)
{
*p = '\0';
}
return (output);
}
/**
* Get a not-quite-unique representation of some of the file's @c stat properties.
* The returned string has the form size-mtime-ctime.
* @param curr_fname The file to generate the "checksum" for.
* @return The "checksum".
* @note The returned string points to static storage that will be overwritten with each call.
*/
char *
calc_file_ugly_minichecksum (char *curr_fname)
{
/*@ buffers ******************************************************/
static char curr_cksum[1000];
/*@ pointers *****************************************************/
/*@ structures ***************************************************/
struct stat buf;
/*@ initialize data ****************************************************/
curr_cksum[0] = '\0';
/*@***************************************************************/
assert_string_is_neither_NULL_nor_zerolength(curr_fname);
if (lstat (curr_fname, &buf))
{
return (curr_cksum); // empty
}
sprintf (curr_cksum, "%ld-%ld-%ld", (long) (buf.st_size),
(long) (buf.st_mtime), (long) (buf.st_ctime));
return (curr_cksum);
}
/**
* Get the number of lines in @p filename.
* @param filename The file to count lines in.
* @return The number of lines in @p filename.
* @bug This function uses the shell and "wc -l"; it should probably be rewritten in C.
*/
long
count_lines_in_file (char *filename)
{
/*@ buffers ******************************************************/
char command[MAX_STR_LEN*2];
char incoming[MAX_STR_LEN];
char tmp[MAX_STR_LEN];
/*@ long *********************************************************/
long noof_lines = -1L;
/*@ pointers *****************************************************/
FILE *fin;
/*@ initialize [0] to null *********************************************/
incoming[0] = '\0';
assert_string_is_neither_NULL_nor_zerolength(filename);
if (!does_file_exist (filename))
{
sprintf (tmp,
"%s does not exist, so I cannot found the number of lines in it",
filename);
log_it (tmp);
return (0);
}
sprintf (command, "cat %s | wc -l", filename);
if (!does_file_exist(filename)) { return(-1); }
fin = popen (command, "r");
if (fin)
{
if (feof (fin))
{
noof_lines = 0;
}
else
{
(void) fgets (incoming, MAX_STR_LEN - 1, fin);
while (strlen (incoming) > 0
&& incoming[strlen (incoming) - 1] < 32)
{
incoming[strlen (incoming) - 1] = '\0';
}
noof_lines = atol (incoming);
}
paranoid_pclose (fin);
}
return (noof_lines);
}
/**
* Check for existence of given @p filename.
* @param filename The file to check for.
* @return TRUE if it exists, FALSE otherwise.
*/
bool
does_file_exist (char *filename)
{
/*@ structures ***************************************************/
struct stat buf;
/*@***************************************************************/
assert(filename!=NULL);
// assert_string_is_neither_NULL_nor_zerolength(filename);
if (lstat (filename, &buf))
{
log_msg(20, "%s does not exist", filename);
return (FALSE);
}
else
{
log_msg(20, "%s exists", filename);
return (TRUE);
}
}
/**
* Modify @p inout (a file containing a list of files) to only contain files
* that exist.
* @param inout The filelist to operate on.
* @note The original file is renamed beforehand, so it will not be accessible
* while the modification is in progress.
*/
void
exclude_nonexistent_files (char *inout)
{
char infname[MAX_STR_LEN];
char outfname[MAX_STR_LEN];
char tmp[MAX_STR_LEN];
char incoming[MAX_STR_LEN];
/*@ int **********************************************************/
int i;
/*@ pointers *****************************************************/
FILE *fin, *fout;
/*@ end vars ************************************************************/
assert_string_is_neither_NULL_nor_zerolength(inout);
sprintf (infname, "%s.in", inout);
sprintf (outfname, "%s", inout);
sprintf (tmp, "cp -f %s %s", inout, infname);
run_program_and_log_output (tmp, FALSE);
if (!(fin = fopen (infname, "r"))) { log_OS_error("Unable to openin infname"); return; }
if (!(fout = fopen (outfname, "w"))){log_OS_error("Unable to openout outfname"); return; }
for (fgets (incoming, MAX_STR_LEN, fin); !feof (fin);
fgets (incoming, MAX_STR_LEN, fin))
{
i = strlen (incoming) - 1;
if (i >= 0 && incoming[i] < 32)
{
incoming[i] = '\0';
}
if (does_file_exist (incoming))
{
fprintf (fout, "%s\n", incoming);
}
else
{
sprintf (tmp, "Excluding '%s'-nonexistent\n", incoming);
log_it (tmp);
}
}
paranoid_fclose (fout);
paranoid_fclose (fin);
unlink (infname);
}
/**
* Attempt to find the user's kernel by calling Mindi.
* If Mindi can't find the kernel, ask user. If @p kernel is not empty,
* don't do anything.
* @param kernel Where to put the found kernel.
* @return 0 for success, 1 for failure.
*/
int figure_out_kernel_path_interactively_if_necessary(char*kernel)
{
char tmp[MAX_STR_LEN];
if (!kernel[0])
{ strcpy(kernel, call_program_and_get_last_line_of_output("mindi --findkernel 2> /dev/null")); }
log_it("Calling Mindi with kernel path of '%s'", kernel);
while(!kernel[0])
{
if (!ask_me_yes_or_no("Kernel not found or invalid. Choose another?"))
{ return(1); }
if (!popup_and_get_string("Kernel path", "What is the full path and filename of your kernel, please?", kernel, MAX_STR_LEN/4))
{ fatal_error("Kernel not found. Please specify with the '-k' flag."); }
sprintf(tmp, "User says kernel is at %s", kernel);
log_it(tmp);
}
return(0);
}
/**
* Find location of specified executable in user's PATH.
* @param fname The basename of the executable to search for (e.g. @c afio).
* @return The full path to the executable, or "" if it does not exist, or NULL if @c file could not be found.
* @note The returned string points to static storage that will be overwritten with each call.
* @bug The checks with @c file and @c dirname seem pointless. If @c incoming is "", then you're calling
* dirname 2\>/dev/null or file 2\>/dev/null | cut -d':' -f1 2\>/dev/null, which basically amounts
* to nothing.
*/
char *
find_home_of_exe (char *fname)
{
/*@ buffers **********************/
static char output[MAX_STR_LEN];
char *incoming;
char *command;
malloc_string(incoming);
malloc_string(command);
incoming[0] = '\0';
/*@********************************/
assert_string_is_neither_NULL_nor_zerolength(fname);
sprintf (command, "which %s 2> /dev/null", fname);
strcpy (incoming, call_program_and_get_last_line_of_output (command));
if (incoming[0] == '\0')
{
if (system("which file > /dev/null 2> /dev/null"))
{
paranoid_free(incoming);
paranoid_free(command);
output[0] = '\0'; return(NULL); // forget it :)
}
sprintf (command, "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null", incoming);
strcpy (incoming, call_program_and_get_last_line_of_output (command));
}
if (incoming[0] == '\0') // yes, it is == '\0' twice, not once :)
{
sprintf (command, "dirname %s 2> /dev/null", incoming);
strcpy (incoming, call_program_and_get_last_line_of_output (command));
}
strcpy (output, incoming);
if (output[0] != '\0' && does_file_exist(output))
{ log_msg(4, "find_home_of_exe () --- Found %s at %s", fname, incoming); }
else
{ output[0]='\0'; log_msg(4, "find_home_of_exe() --- Could not find %s", fname); }
paranoid_free(incoming);
paranoid_free(command);
if (!output[0]) { return(NULL); } else { return (output); }
}
/**
* Get the last sequence of digits surrounded by non-digits in the first 32k of
* a file.
* @param logfile The file to look in.
* @return The number found, or 0 if none.
*/
int
get_trackno_from_logfile (char *logfile)
{
/*@ pointers **********************************************************/
FILE *fin;
/*@ int ***************************************************************/
int trackno = 0;
size_t len = 0;
/*@ buffer *************************************************************/
char datablock[32701];
assert_string_is_neither_NULL_nor_zerolength(logfile);
if (!(fin = fopen (logfile, "r"))) { log_OS_error("Unable to open logfile"); fatal_error("Unable to open logfile to read trackno"); }
len = fread (datablock, 1, 32700, fin);
paranoid_fclose (fin);
if (len <= 0)
{
return (0);
}
for (; len > 0 && !isdigit (datablock[len - 1]); len--);
datablock[len--] = '\0';
for (; len > 0 && isdigit (datablock[len - 1]); len--);
trackno = atoi (datablock + len);
/*
sprintf(tmp,"datablock=%s; trackno=%d",datablock+len, trackno);
log_it(tmp);
*/
return (trackno);
}
/**
* Get a percentage from the last line of @p filename. We look for the string
* "% done" on the last line and, if we find it, grab the number before the last % sign.
* @param filename The file to get the percentage from.
* @return The percentage found, or 0 for error.
*/
int
grab_percentage_from_last_line_of_file (char *filename)
{
/*@ buffers ******************************************************/
char tmp[MAX_STR_LEN];
char lastline[MAX_STR_LEN];
char command[MAX_STR_LEN];
/*@ pointers *****************************************************/
char *p;
/*@ int's ********************************************************/
int i;
for(i=NOOF_ERR_LINES-1; i>=0 && !strstr(err_log_lines[i], "% Done") && !strstr(err_log_lines[i], "% done"); i--);
if (i<0)
{
sprintf(command, "tail -n3 %s | fgrep -i \"%c\" | tail -n1 | awk '{print $0;}'", filename, '%');
strcpy(lastline, call_program_and_get_last_line_of_output(command));
if (!lastline[0])
{
return(0);
}
}
else
{
strcpy(lastline, err_log_lines[i]);
}
p = strrchr(lastline, '%');
if (p) { *p='\0'; }
// log_msg(2, "lastline='%s', ", p, lastline);
if (!p)
{
return (0);
}
*p = '\0';
for (p --; *p != ' ' && p != lastline; p--);
if (p != lastline)
{
p++;
}
i = atoi (p);
sprintf(tmp,"'%s' --> %d",p,i);
// log_to_screen(tmp);
return (i);
}
/**
* Return the last line of @p filename.
* @param filename The file to get the last line of.
* @return The last line of the file.
* @note The returned string points to static storage that will be overwritten with each call.
*/
char *
last_line_of_file (char *filename)
{
/*@ buffers ******************************************************/
static char output[MAX_STR_LEN];
static char command[MAX_STR_LEN*2];
static char tmp[MAX_STR_LEN];
/*@ pointers *****************************************************/
FILE *fin;
/*@ end vars *****************************************************/
if (!does_file_exist (filename))
{
sprintf (tmp, "Tring to get last line of nonexistent file (%s)",
filename);
log_it (tmp);
output[0] = '\0';
return (output);
}
sprintf (command, "cat %s | tail -n1", filename);
fin = popen (command, "r");
(void) fgets (output, MAX_STR_LEN, fin);
paranoid_pclose (fin);
while (strlen (output) > 0 && output[strlen (output) - 1] < 32)
{
output[strlen (output) - 1] = '\0';
}
return (output);
}
/**
* Get the length of @p filename in bytes.
* @param filename The file to get the length of.
* @return The length of the file, or -1 for error.
*/
long long
length_of_file (char *filename)
{
/*@ pointers ****************************************************/
FILE *fin;
/*@ long long **************************************************/
long long length;
fin = fopen (filename, "r");
if (!fin)
{
log_it("filename=%s", filename);
log_OS_error("Unable to openin filename");
return (-1);
}
fseek (fin, 0, SEEK_END);
length = ftell (fin);
paranoid_fclose (fin);
return (length);
}
/**
* ?????
* @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
*/
int
make_checksum_list_file (char *filelist, char *cksumlist, char *comppath)
{
/*@ pointers *****************************************************/
FILE *fin;
FILE *fout;
/*@ int ********************************************************/
int percentage;
int i;
int counter = 0;
/*@ buffer *******************************************************/
char stub_fname[1000];
char curr_fname[1000];
char curr_cksum[1000];
char tmp[1000];
/*@ long [long] **************************************************/
long long filelist_length;
long curr_pos;
long start_time;
long current_time;
long time_taken;
long time_remaining;
/*@ end vars ****************************************************/
start_time = get_time ();
filelist_length = length_of_file (filelist);
sprintf (tmp, "filelist = %s; cksumlist = %s", filelist, cksumlist);
log_it (tmp);
fin = fopen (filelist, "r");
if (fin == NULL)
{
log_OS_error ("Unable to fopen-in filelist");
log_to_screen ("Can't open filelist");
return (1);
}
fout = fopen (cksumlist, "w");
if (fout == NULL)
{
log_OS_error ("Unable to openout cksumlist");
paranoid_fclose (fin);
log_to_screen ("Can't open checksum list");
return (1);
}
for (fgets (stub_fname, 999, fin); !feof (fin);
fgets (stub_fname, 999, fin))
{
if (stub_fname[(i = strlen (stub_fname) - 1)] < 32)
{
stub_fname[i] = '\0';
}
sprintf (tmp, "%s%s", comppath, stub_fname);
strcpy (curr_fname, tmp + 1);
strcpy (curr_cksum, calc_file_ugly_minichecksum (curr_fname));
fprintf (fout, "%s\t%s\n", curr_fname, curr_cksum);
if (counter++ > 12)
{
current_time = get_time ();
counter = 0;
curr_fname[37] = '\0';
curr_pos = ftell (fin) / 1024;
percentage = (int) (curr_pos * 100 / filelist_length);
time_taken = current_time - start_time;
if (percentage == 0)
{
/* printf("%0d%% done \r",percentage); */
}
else
{
time_remaining =
time_taken * 100 / (long) (percentage) - time_taken;
sprintf (tmp,
"%02d%% done %02d:%02d taken %02d:%02d remaining %-37s\r",
percentage, (int) (time_taken / 60),
(int) (time_taken % 60), (int) (time_remaining / 60),
(int) (time_remaining % 60), curr_fname);
log_to_screen (tmp);
}
sync ();
}
}
paranoid_fclose (fout);
paranoid_fclose (fin);
log_it ("Done.");
return (0);
}
/**
* Create the directory @p outdir_fname and all parent directories. Equivalent to mkdir -p.
* @param outdir_fname The directory to create.
* @return The return value of @c mkdir.
*/
int make_hole_for_dir (char*outdir_fname)
{
char tmp[MAX_STR_LEN*2];
int res=0;
assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
sprintf(tmp, "mkdir -p %s", outdir_fname);
res = system(tmp);
return(res);
}
/**
* Create the parent directories of @p outfile_fname.
* @param outfile_fname The file to make a "hole" for.
* @return 0, always.
* @bug Return value unnecessary.
*/
int
make_hole_for_file (char *outfile_fname)
{
/*@ buffer *******************************************************/
char command[MAX_STR_LEN*2];
/*@ int *********************************************************/
int res = 0;
/*@ end vars ****************************************************/
assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
assert(!strstr(outfile_fname, MNT_CDROM));
assert(!strstr(outfile_fname, "/dev/cdrom"));
sprintf (command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
res += system (command);
sprintf (command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
res += system (command);
sprintf (command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
res += system (command);
unlink (outfile_fname);
return (0);
}
/**
* Get the number of lines in @p filelist_fname that contain the string @p wildcard.
* @param filelist_fname The file to search through.
* @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
* @return The number of lines matched.
*/
long
noof_lines_that_match_wildcard (char *filelist_fname, char *wildcard)
{
/*@ long ********************************************************/
long matches = 0;
/*@ pointers ****************************************************/
FILE *fin;
/*@ buffers *****************************************************/
char incoming[MAX_STR_LEN];
/*@ end vars ****************************************************/
fin = fopen (filelist_fname, "r");
if (!fin)
{
log_OS_error("Unable to openin filelist_fname");
return (0);
}
(void) fgets (incoming, MAX_STR_LEN - 1, fin);
while (!feof (fin))
{
if (strstr (incoming, wildcard))
{
matches++;
}
(void) fgets (incoming, MAX_STR_LEN - 1, fin);
}
paranoid_fclose (fin);
return (matches);
}
/**
* Register our PID in a file in /var/run.
* The PID will be put in /var/run/monitas-name_str.pid.
* @param pid 0 to remove file, anything else to create it.
* @param name_str The basename of the PID file (e.g. "mondo" or "server")
* @note This function does not provide support against multiple instances, unless you check for that yourself.
*/
void register_pid(pid_t pid, char*name_str)
{
char tmp[MAX_STR_LEN+1], lockfile_fname[MAX_STR_LEN+1];
int res;
FILE*fin;
sprintf(lockfile_fname, "/var/run/monitas-%s.pid", name_str);
if (!pid)
{
log_it("Unregistering PID");
if (unlink(lockfile_fname)) { log_it( "Error unregistering PID"); }
return;
}
if (does_file_exist(lockfile_fname))
{
tmp[0]='\0';
if ((fin=fopen(lockfile_fname,"r"))) { (void) fgets(tmp, MAX_STR_LEN, fin); paranoid_fclose(fin); }
else { log_OS_error("Unable to openin lockfile_fname"); }
pid = (pid_t) atol(tmp);
sprintf(tmp, "ps %ld > /dev/null 2> /dev/null", (long int)pid);
res = system(tmp);
if (!res)
{
log_it ("I believe the daemon is already running. If it isn't, please delete %s and try again.", lockfile_fname);
}
}
sprintf(tmp, "echo %ld > %s 2> /dev/null", (long int)getpid(), lockfile_fname);
if (system(tmp)) { fatal_error( "Cannot register PID"); }
}
/**
* Determine the size (in KB) of @p dev in the mountlist in tmpdir/mountlist.txt.
* @param tmpdir The tempdir where the mountlist is stored.
* @param dev The device to search for.
* @return The size of the partition in KB.
*/
long size_of_partition_in_mountlist_K(char*tmpdir, char*dev)
{
char command[MAX_STR_LEN];
char mountlist[MAX_STR_LEN];
char sz_res[MAX_STR_LEN];
long file_len_K;
sprintf(mountlist, "%s/mountlist.txt", tmpdir);
sprintf (command,
"cat %s/mountlist.txt | grep \"%s \" | head -n1 | awk '{print $4;}'",
tmpdir, dev);
log_it (command);
strcpy (sz_res, call_program_and_get_last_line_of_output (command));
file_len_K = atol (sz_res);
log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
return(file_len_K);
}
/**
* Calculate the total size (in KB) of all the biggiefiles in this backup.
* @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
* @return The total size of all biggiefiles in KB.
*/
long
size_of_all_biggiefiles_K (struct s_bkpinfo *bkpinfo)
{
/*@ buffers ******************************************************/
char *fname;
char *biggielist;
char *comment;
/*@ long *********************************************************/
long scratchL = 0;
long file_len_K;
/*@ pointers ****************************************************/
FILE *fin=NULL;
/*@ end vars ****************************************************/
malloc_string(fname);
malloc_string(biggielist);
malloc_string(comment);
log_it ("Calculating size of all biggiefiles (in total)");
sprintf (biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
log_it("biggielist = %s", biggielist);
if (!(fin = fopen (biggielist, "r")))
{
log_OS_error
("Cannot open biggielist. OK, so estimate is based on filesets only.");
}
else
{
log_msg(4, "Reading it...");
for (fgets (fname, MAX_STR_LEN, fin); !feof (fin);
fgets (fname, MAX_STR_LEN, fin))
{
if (fname[strlen(fname)-1]<=32) { fname[strlen(fname)-1]='\0'; }
if (0 == strncmp (fname, "/dev/", 5))
{
file_len_K = get_phys_size_of_drive(fname)*1024L;
}
else
{
file_len_K = (long) (length_of_file (fname) / 1024);
}
if (file_len_K > 0)
{
scratchL += file_len_K;
log_msg(4, "%s --> %ld K", fname, file_len_K);
}
sprintf (comment, "After adding %s, scratchL+%ld now equals %ld",
fname, file_len_K, scratchL);
log_msg(4, comment);
if (feof(fin)) { break; }
}
}
log_it ("Closing...");
paranoid_fclose (fin);
log_it ("Finished calculating total size of all biggiefiles");
paranoid_free(fname);
paranoid_free(biggielist);
paranoid_free(comment);
return (scratchL);
}
/**
* Determine the amount of space (in KB) occupied by a mounted CD.
* This can also be used to find the space used for other directories.
* @param mountpt The mountpoint/directory to check.
* @return The amount of space occupied in KB.
*/
long long
space_occupied_by_cd (char *mountpt)
{
/*@ buffer *******************************************************/
char tmp[MAX_STR_LEN];
char command[MAX_STR_LEN*2];
long long llres;
/*@ pointers *****************************************************/
char *p;
FILE *fin;
/*@ end vars ****************************************************/
sprintf (command, "du -sk %s", mountpt);
fin = popen (command, "r");
(void) fgets (tmp, MAX_STR_LEN, fin);
paranoid_pclose (fin);
p = strchr (tmp, '\t');
if (p)
{
*p = '\0';
}
for(p=tmp,llres=0; *p!='\0'; p++)
{
llres*=10;
llres+=(int)(*p - '0');
}
return (llres);
}
/**
* Update a CRC checksum to include another character.
* @param crc The original CRC checksum.
* @param c The character to add.
* @return The new CRC checksum.
* @ingroup utilityGroup
*/
unsigned int
updcrc (unsigned int crc, unsigned int c)
{
unsigned int tmp;
tmp = (crc >> 8) ^ c;
crc = (crc << 8) ^ crctttab[tmp & 255];
return crc;
}
/**
* Update a reverse CRC checksum to include another character.
* @param crc The original CRC checksum.
* @param c The character to add.
* @return The new CRC checksum.
* @ingroup utilityGroup
*/
unsigned int
updcrcr (unsigned int crc, unsigned int c)
{
unsigned int tmp;
tmp = crc ^ c;
crc = (crc >> 8) ^ crc16tab[tmp & 0xff];
return crc;
}
/**
* Check for an executable on the user's system; write a message to the
* screen and the log if we can't find it.
* @param fname The executable basename to look for.
* @return 0 if it's found, nonzero if not.
*/
int
whine_if_not_found (char *fname)
{
/*@ buffers ****/
char command[MAX_STR_LEN*2];
char errorstr[MAX_STR_LEN];
sprintf (command, "which %s > /dev/null 2> /dev/null", fname);
sprintf (errorstr, "Please install '%s'. I cannot find it on your system.",
fname);
if (system (command))
{
log_to_screen (errorstr);
log_to_screen
("There may be hyperlink at http://www.mondorescue.com which");
log_to_screen ("will take you to the relevant (missing) package.");
return (1);
}
else
{
return (0);
}
}
/**
* Create a data file at @p fname containing @p contents.
* The data actually can be multiple lines, despite the name.
* @param fname The file to create.
* @param contents The data to put in it.
* @return 0 for success, 1 for failure.
*/
int
write_one_liner_data_file (char *fname, char *contents)
{
/*@ pointers ****************************************************/
FILE *fout;
int res=0;
/*@ end vars ****************************************************/
assert_string_is_neither_NULL_nor_zerolength(fname);
if (!contents) { log_it("%d: Warning - writing NULL to %s", __LINE__, fname); }
if (!(fout = fopen (fname, "w")))
{
log_it("fname=%s");
log_OS_error("Unable to openout fname");
return (1);
}
fprintf (fout, "%s\n", contents);
paranoid_fclose (fout);
return (res);
}
/**
* Read @p fname into @p contents.
* @param fname The file to read.
* @param contents Where to put its contents.
* @return 0 for success, nonzero for failure.
*/
int
read_one_liner_data_file (char *fname, char *contents)
{
/*@ pointers ****************************************************/
FILE *fin;
int res=0;
int i;
/*@ end vars ****************************************************/
assert_string_is_neither_NULL_nor_zerolength(fname);
if (!contents) { log_it("%d: Warning - reading NULL from %s", __LINE__, fname); }
if (!(fin = fopen (fname, "r")))
{
log_it("fname=%s", fname);
log_OS_error("Unable to openin fname");
return (1);
}
fscanf (fin, "%s\n", contents);
i = strlen(contents);
if (i>0 && contents[i-1] < 32) { contents[i-1] = '\0'; }
paranoid_fclose (fin);
return (res);
}
/**
* Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
* Currently this includes: copy Mondo's home directory to scratchdir, untar "mondo_home/payload.tgz"
* if it exists, copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
* and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
* @param bkpinfo The backup information structure. Fields used:
* - @c bkpinfo->postnuke_tarball
* - @c bkpinfo->scratchdir
* - @c bkpinfo->tmpdir
*/
void
copy_mondo_and_mindi_stuff_to_scratchdir (struct s_bkpinfo *bkpinfo)
{
/*@ Char buffers ***/
char command[MAX_STR_LEN*2];
char tmp[MAX_STR_LEN];
char old_pwd[MAX_STR_LEN];
mvaddstr_and_log_it (g_currentY, 0,
"Copying Mondo's core files to the scratch directory");
log_msg(4, "g_mondo_home='%s'", g_mondo_home);
if (strlen(g_mondo_home)<2)
{ find_and_store_mondoarchives_home(g_mondo_home); }
sprintf (command, CP_BIN " --parents -pRdf %s %s", g_mondo_home,
bkpinfo->scratchdir);
log_msg(4, "command = %s", command);
if (run_program_and_log_output (command, 1))
{
fatal_error ("Failed to copy Mondo's stuff to scratchdir");
}
sprintf(tmp, "%s/payload.tgz", g_mondo_home);
if (does_file_exist(tmp))
{
log_it("Untarring payload %s to scratchdir %s", tmp, bkpinfo->scratchdir);
(void) getcwd (old_pwd, MAX_STR_LEN -1);
chdir (bkpinfo->scratchdir);
sprintf(command, "tar -zxvf %s", tmp);
if (run_program_and_log_output(command, FALSE))
{ fatal_error ("Failed to untar payload"); }
chdir (old_pwd);
}
sprintf (command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir,
bkpinfo->scratchdir);
if (run_program_and_log_output (command, FALSE))
{
fatal_error ("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
}
strcpy (tmp,
call_program_and_get_last_line_of_output ("which mondorestore"));
if (!tmp[0]) { fatal_error("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?"); }
sprintf (command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
if (run_program_and_log_output (command, FALSE))
{
fatal_error ("Failed to copy mondorestore to tmpdir");
}
sprintf (command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
paranoid_system (command);
if (bkpinfo->postnuke_tarball[0])
{
sprintf (command, "cp -f %s %s/post-nuke.tgz", bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
if (run_program_and_log_output (command, FALSE))
{ fatal_error("Unable to copy post-nuke tarball to tmpdir"); }
}
mvaddstr_and_log_it (g_currentY++, 74, "Done.");
}
/**
* Store the client's NFS configuration in files to be restored at restore-time.
* Assumes that @c bkpinfo->media_type = nfs, but does not check for this.
* @param bkpinfo The backup information structure. Fields used:
* - @c nfs_mount
* - @c nfs_remote_dir
* - @c tmpdir
*/
void
store_nfs_config (struct s_bkpinfo *bkpinfo)
{
/*@ buffers *********/
char outfile[MAX_STR_LEN];
char nfs_dev[MAX_STR_LEN];
char nfs_mount[MAX_STR_LEN];
char nfs_client_ipaddr[MAX_STR_LEN];
char nfs_server_ipaddr[MAX_STR_LEN];
char tmp[MAX_STR_LEN];
char command[MAX_STR_LEN*2];
/*@ pointers ******/
char *p;
FILE *fout;
log_it ("Storing NFS configuration");
strcpy (tmp, bkpinfo->nfs_mount);
p = strchr (tmp, ':');
if (!p)
{
fatal_error
("NFS mount doesn't have a colon in it, e.g. 192.168.1.4:/home/nfs");
}
*(p++) = '\0';
strcpy (nfs_server_ipaddr, tmp);
strcpy (nfs_mount, p);
sprintf (command,
"ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\n' | head -n1 | cut -d' ' -f1");
strcpy (nfs_dev, call_program_and_get_last_line_of_output (command));
sprintf (command,
"ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f7 | cut -d':' -f2");
strcpy (nfs_client_ipaddr,
call_program_and_get_last_line_of_output (command));
sprintf (tmp, "nfs_client_ipaddr=%s; nfs_server_ipaddr=%s; nfs_mount=%s",
nfs_client_ipaddr, nfs_server_ipaddr, nfs_mount);
if (strlen (nfs_dev) < 2)
{
fatal_error
("Unable to find ethN (eth0, eth1, ...) adapter via NFS mount you specified.");
}
sprintf (outfile, "%s/start-nfs", bkpinfo->tmpdir);
sprintf (tmp, "outfile = %s", outfile);
log_it (tmp);
if (!(fout = fopen (outfile, "w")))
{
fatal_error ("Cannot store NFS config");
}
fprintf (fout, "ifconfig lo 127.0.0.1 # config loopback\n");
fprintf (fout, "ifconfig %s %s; # config client\n", nfs_dev,
nfs_client_ipaddr);
fprintf (fout, "ping -c1 %s; # ping server\n", nfs_server_ipaddr);
fprintf (fout, "mount -t nfs -o nolock %s /tmp/isodir\n", bkpinfo->nfs_mount);
fprintf (fout, "exit 0\n");
paranoid_fclose (fout);
chmod (outfile, 0777);
make_hole_for_dir( "/var/cache/mondo-archive");
// paranoid_system ("mkdir -p /var/cache/mondo-archive 2> /dev/null");
sprintf (tmp, "cp -f %s /var/cache/mondo-archive", outfile);
run_program_and_log_output(tmp, FALSE);
sprintf (tmp, "%s/NFS-DEV", bkpinfo->tmpdir);
write_one_liner_data_file (tmp, nfs_dev);
sprintf (tmp, "%s/NFS-CLIENT-IPADDR", bkpinfo->tmpdir);
write_one_liner_data_file (tmp, nfs_client_ipaddr);
sprintf (tmp, "%s/NFS-SERVER-IPADDR", bkpinfo->tmpdir);
write_one_liner_data_file (tmp, nfs_server_ipaddr);
sprintf (tmp, "%s/NFS-SERVER-MOUNT", bkpinfo->tmpdir);
write_one_liner_data_file (tmp, bkpinfo->nfs_mount);
sprintf (tmp, "%s/NFS-SERVER-PATH", bkpinfo->tmpdir);
write_one_liner_data_file (tmp, bkpinfo->nfs_remote_dir);
log_it ("Finished storing NFS configuration");
}
/**
* Determine the approximate number of media that the backup will take up,
* and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
* plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
* 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
* "imagedevs", the estimate is not shown as it will be wildly inaccurate.
* If there are more than 50 media estimated, the estimate will not be shown.
* @param bkpinfo The backup information structure. Fields used:
* - @c bkpinfo->backup_media_type
* - @c bkpinfo->image_devs
* - @c bkpinfo->media_size
* - @c bkpinfo->optimal_set_size
* - @c bkpinfo->use_lzo
* @param noof_sets The number of filesets created.
* @ingroup archiveGroup
*/
void
estimate_noof_media_required (struct s_bkpinfo *bkpinfo, long noof_sets)
{
/*@ buffers ****************/
char tmp[MAX_STR_LEN];
/*@ long long **************/
long long scratchLL;
if (bkpinfo->media_size[1]<=0 || bkpinfo->backup_media_type == nfs)
{
log_to_screen("Number of media required: UNKNOWN");
return;
}
log_it ("Estimating number of media required...");
scratchLL = (long long)(noof_sets) * (long long)(bkpinfo->optimal_set_size)
+ (long long)(size_of_all_biggiefiles_K (bkpinfo));
scratchLL = (scratchLL / 1024) / bkpinfo->media_size[1];
scratchLL++;
if (bkpinfo->use_lzo)
{
scratchLL = (scratchLL * 2) / 3;
}
else
{
scratchLL = scratchLL / 2;
}
if (!scratchLL)
{
scratchLL++;
}
if (scratchLL <= 1)
{
sprintf (tmp,
"Your backup will probably occupy a single CD/tape/ISO. Maybe two.");
}
else if (scratchLL > 4)
{
sprintf(tmp, "Your backup will occupy one meeeeellion media! (maybe %s)",
number_to_text ((int) (scratchLL + 1)));
}
else
{
sprintf (tmp, "Your backup will occupy approximately %s media.",
number_to_text ((int) (scratchLL + 1)));
}
if (!bkpinfo->image_devs[0] && (scratchLL<50))
{
log_to_screen (tmp);
}
}
/**
* Get the last suffix of @p instr.
* If @p instr was "httpd.log.gz", we would return "gz".
* @param instr The filename to get the suffix of.
* @return The suffix (without a dot), or "" if none.
* @note The returned string points to static storage that will be overwritten with each call.
*/
char*sz_last_suffix(char*instr)
{
static char outstr[MAX_STR_LEN];
char *p;
p = strrchr(instr,'.');
if (!p)
{
outstr[0]='\0';
}
else
{
strcpy(outstr, p);
}
return(outstr);
}
/**
* Determine whether a file is compressed. This is done
* by reading through the "do-not-compress-these" file distributed with Mondo.
* @param filename The file to check.
* @return TRUE if it's compressed, FALSE if not.
*/
bool is_this_file_compressed(char*filename)
{
char do_not_compress_these[MAX_STR_LEN];
char tmp[MAX_STR_LEN];
char *p;
sprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
if (!does_file_exist(tmp)) { return(FALSE); }
strcpy(do_not_compress_these, last_line_of_file(tmp));
for(p=do_not_compress_these; p!=NULL; p++)
{
strcpy(tmp, p);
if (strchr(tmp, ' ')) { *(strchr(tmp, ' ')) ='\0'; }
if (!strcmp(sz_last_suffix(filename), tmp))
{ /*printf("MATCH\n");*/ return(TRUE); }
if (!(p = strchr(p, ' '))) { break; }
}
return(FALSE);
}
int mode_of_file(char*fname)
{
struct stat buf;
if (lstat(fname, &buf))
{ return(-1); } // error
else
{ return(buf.st_mode); }
}
/**
* Create a small script that mounts /boot, calls @c grub-install, and syncs the disks.
* @param outfile Where to put the script.
* @return 0 for success, 1 for failure.
*/
int make_grub_install_scriptlet(char*outfile)
{
FILE*fout;
char *tmp;
int retval=0;
malloc_string(tmp);
if ((fout = fopen( outfile, "w")))
{
fprintf(fout, "#!/bin/sh\n\nmount /boot > /dev/null 2> /dev/null\ngrub-install $@\nres=$?\nsync;sync;sync\nexit $res\n");
paranoid_fclose(fout);
log_msg(2, "Created %s", outfile);
sprintf(tmp, "chmod +x %s", outfile);
paranoid_system(tmp);
retval=0;
}
else
{
retval=1;
}
paranoid_free(tmp);
return(retval);
}
/* @} - end fileGroup */