/* file manipulation
$Id: libmondo-files.c 3430 2015-08-27 08:57:37Z bruno $
*/
/**
* @file
* Functions to manipulate files.
*/
#include "my-stuff.h"
#include "mr_mem.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 3430 2015-08-27 08:57:37Z bruno $";
extern char err_log_lines[NOOF_ERR_LINES][MAX_STR_LEN];
extern int g_currentY;
extern char *g_mondo_home;
extern bool g_text_mode;
/* Reference to global bkpinfo */
extern struct s_bkpinfo *bkpinfo;
/**
* @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 = NULL;
/*@ pointers **************************************************** */
char *p = NULL;
char *q;
FILE *fin;
/*@ initialize pointers ***************************************** */
p = output;
/*@************************************************************** */
assert_string_is_neither_NULL_nor_zerolength(filename);
if (does_file_exist(filename)) {
mr_asprintf(command, "md5sum \"%s\"", filename);
fin = popen(command, "r");
if (fin) {
q = fgets(output, MAX_STR_LEN, fin);
if (!q) {
// FIXME
}
q = strchr(output, ' ');
paranoid_pclose(fin);
}
mr_free(command);
} else {
log_it("File '%s' not found; cannot calc checksum", filename);
}
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 = NULL;
char *incoming = NULL;
/*@ long ******************************************************** */
long noof_lines = -1L;
/*@ pointers **************************************************** */
FILE *fin;
assert_string_is_neither_NULL_nor_zerolength(filename);
if (!does_file_exist(filename)) {
log_it("%s does not exist, so I cannot found the number of lines in it", filename);
return (0);
}
mr_asprintf(command, "cat %s | wc -l", filename);
if (!does_file_exist(filename)) {
mr_free(command);
return (-1);
}
fin = popen(command, "r");
mr_free(command);
if (fin) {
if (feof(fin)) {
noof_lines = 0;
} else {
mr_getline(incoming, fin);
while (strlen(incoming) > 0 && incoming[strlen(incoming) - 1] < 32) {
incoming[strlen(incoming) - 1] = '\0';
}
noof_lines = atol(incoming);
mr_free(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 = NULL;
char *outfname = NULL;
char *tmp = NULL;
char *incoming = NULL;
/*@ int ********************************************************* */
int i;
/*@ pointers **************************************************** */
FILE *fin, *fout;
/*@ end vars *********************************************************** */
assert_string_is_neither_NULL_nor_zerolength(inout);
mr_asprintf(infname, "%s.in", inout);
mr_asprintf(tmp, "cp -f %s %s", inout, infname);
run_program_and_log_output(tmp, FALSE);
mr_free(tmp);
if (!(fin = fopen(infname, "r"))) {
log_OS_error("Unable to openin infname");
mr_free(infname);
return;
}
mr_asprintf(outfname, "%s", inout);
if (!(fout = fopen(outfname, "w"))) {
log_OS_error("Unable to openout outfname");
mr_free(infname);
mr_free(outfname);
return;
}
mr_free(outfname);
for (mr_getline(incoming, fin); !feof(fin); mr_getline(incoming, 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 {
log_it("Excluding '%s'-nonexistent\n", incoming);
}
mr_free(incoming);
}
mr_free(incoming);
paranoid_fclose(fout);
paranoid_fclose(fin);
unlink(infname);
mr_free(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 = NULL;
char *command = NULL;
if (!kernel[0]) {
strcpy(kernel, call_program_and_get_last_line_of_output("mindi --findkernel 2> /dev/null"));
}
// If we didn't get anything back, check whether mindi raised a fatal error
if (!kernel[0]) {
mr_asprintf(command, "grep 'Fatal error' %s", MINDI_LOGFILE);
mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
if (strlen(tmp) > 1) {
popup_and_OK(tmp);
mr_free(tmp);
mr_free(command);
fatal_error("Mindi gave a fatal error. Please check "MINDI_LOGFILE);
}
mr_free(tmp);
mr_free(command);
} else {
// If we've found the kernel, allow sysadmin to modify it if he wants
if (!g_text_mode) {
if (!popup_and_get_string("Kernel path", "We found this full path name for your kernel. You should just use it in most cases", kernel, MAX_STR_LEN / 4)) {
fatal_error("Kernel not found. Please specify with the '-k' flag.");
}
}
}
log_it("User says kernel is at %s", kernel);
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.");
}
log_it("User says kernel is at %s", kernel);
}
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 = NULL;
char *command = NULL;
/*@******************************* */
assert_string_is_neither_NULL_nor_zerolength(fname);
mr_asprintf(command, "which %s 2> /dev/null", fname);
mr_asprintf(incoming, "%s", call_program_and_get_last_line_of_output(command));
mr_free(command);
if (incoming[0] == '\0') {
if (system("which file > /dev/null 2> /dev/null")) {
mr_free(incoming);
output[0] = '\0';
return(NULL); // forget it :)
}
mr_asprintf(command, "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null", incoming);
mr_free(incoming);
mr_asprintf(incoming, "%s", call_program_and_get_last_line_of_output(command));
mr_free(command);
}
if (incoming[0] == '\0') {
mr_asprintf(command, "dirname %s 2> /dev/null", incoming);
mr_free(incoming);
mr_asprintf(incoming, "%s", call_program_and_get_last_line_of_output(command));
mr_free(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);
}
mr_free(incoming);
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);
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 *lastline = NULL;
char *command = NULL;
/*@ pointers **************************************************** */
char *p = NULL;
/*@ int's ******************************************************* */
int i = 0;
for (i = NOOF_ERR_LINES - 1; i >= 0 && !strstr(err_log_lines[i], "% Done") && !strstr(err_log_lines[i], "% done"); i--);
if (i < 0) {
mr_asprintf(command, "tail -n3 %s | grep -Fi \"%c\" | tail -n1 | awk '{print $0;}'", filename, '%');
mr_asprintf(lastline, "%s", call_program_and_get_last_line_of_output(command));
mr_free(command);
if (!lastline[0]) {
mr_free(lastline);
return(0);
}
} else {
mr_asprintf(lastline, "%s", err_log_lines[i]);
}
p = strrchr(lastline, '%');
if (p) {
*p = '\0';
} else {
mr_free(lastline);
return(0);
}
for (p--; isdigit(*p) && p != lastline; p--);
if (p != lastline) {
p++;
}
i = atoi(p);
mr_free(lastline);
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];
char *command = NULL;
char *p = NULL;
/*@ pointers **************************************************** */
FILE *fin;
/*@ end vars **************************************************** */
if (!does_file_exist(filename)) {
log_it("Trying to get last line of nonexistent file (%s)", filename);
output[0] = '\0';
return (output);
}
mr_asprintf(command, "tail -n1 %s", filename);
fin = popen(command, "r");
mr_free(command);
p = fgets(output, MAX_STR_LEN, fin);
if (p == NULL) {
// FIXME
}
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.
*/
off_t length_of_file(char *filename)
{
/*@ pointers *************************************************** */
FILE *fin;
/*@ long long ************************************************* */
off_t length;
fin = fopen(filename, "r");
if (!fin) {
log_it("filename=%s", filename);
log_OS_error("Unable to openin filename");
return(-1);
}
fseeko(fin, 0, SEEK_END);
length = ftello(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 = NULL;
char *curr_fname = NULL;
char *curr_cksum = NULL;
char *tmp = NULL;
/*@ long [long] ************************************************* */
off_t filelist_length;
off_t 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);
log_it("filelist = %s; cksumlist = %s", filelist, cksumlist);
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 (mr_getline(stub_fname, fin); !feof(fin); mr_getline(stub_fname, fin)) {
i = strlen(stub_fname) - 1;
if (stub_fname[i] < 32) {
stub_fname[i] = '\0';
}
mr_asprintf(tmp, "%s%s", comppath, stub_fname);
mr_free(stub_fname);
mr_asprintf(curr_fname, "%s", tmp + 1);
mr_free(tmp);
mr_asprintf(curr_cksum, "%s", calc_file_ugly_minichecksum(curr_fname));
fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
mr_free(curr_cksum);
if (counter++ > 12) {
current_time = get_time();
counter = 0;
/* TODO: 37 really ? */
curr_fname[37] = '\0';
curr_pos = ftello(fin) / 1024;
percentage = (int) (curr_pos * 100 / filelist_length);
time_taken = current_time - start_time;
if (percentage != 0) {
time_remaining = time_taken * 100 / (long) (percentage) - time_taken;
log_to_screen("%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);
}
sync();
}
mr_free(curr_fname);
}
mr_free(stub_fname);
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(const char *outdir_fname)
{
char *tmp = NULL;
int res = 0;
assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
mr_asprintf(tmp, "mkdir -p %s", outdir_fname);
res = system(tmp);
mr_free(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 = NULL;
/*@ 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"));
mr_asprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
res += system(command);
mr_free(command);
mr_asprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
res += system(command);
mr_free(command);
mr_asprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
res += system(command);
mr_free(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 = NULL;
/*@ end vars *************************************************** */
fin = fopen(filelist_fname, "r");
if (!fin) {
log_OS_error("Unable to openin filelist_fname");
return(0);
}
mr_getline(incoming, fin);
while (!feof(fin)) {
if (strstr(incoming, wildcard)) {
matches++;
}
mr_free(incoming);
mr_getline(incoming, fin);
}
mr_free(incoming);
paranoid_fclose(fin);
return(matches);
}
/**
* 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 = NULL;
char *mountlist = NULL;
char *sz_res = NULL;
long file_len_K;
mr_asprintf(mountlist, "%s/mountlist.txt", tmpdir);
mr_asprintf(command, "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'", dev, tmpdir);
mr_free(mountlist);
log_it(command);
mr_asprintf(sz_res, "%s", 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);
mr_free(sz_res);
mr_free(command);
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()
{
/*@ buffers ***************************************************** */
char *fname = NULL;
char *biggielist = NULL;
char *tmp = NULL;
char *command = NULL;
/*@ long ******************************************************** */
long scratchL = 0;
long file_len_K;
/*@ pointers *************************************************** */
FILE *fin = NULL;
/*@ end vars *************************************************** */
log_it("Calculating size of all biggiefiles (in total)");
mr_asprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
log_it("biggielist = %s", biggielist);
fin = fopen(biggielist, "r");
mr_free(biggielist);
if (!(fin)) {
log_OS_error("Cannot open biggielist. OK, so estimate is based on filesets only.");
} else {
log_msg(4, "Reading it...");
for (mr_getline(fname, fin); !feof(fin); mr_getline(fname, fin)) {
if (fname[strlen(fname) - 1] <= 32) {
fname[strlen(fname) - 1] = '\0';
}
if (0 == strncmp(fname, "/dev/", 5)) {
if (is_dev_an_NTFS_dev(fname)) {
if ( !find_home_of_exe("ntfsresize")) {
mr_free(tmp);
mr_free(fname);
fatal_error("ntfsresize not found");
}
mr_free(tmp);
mr_asprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
log_it("command = %s", command);
mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
mr_free(command);
log_it("res of it = %s", tmp);
file_len_K = atoll(tmp) / 1024L;
mr_free(tmp);
} else {
file_len_K = get_phys_size_of_drive(fname) * 1024L;
}
} else {
/* TODO: more than long here ??? */
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);
}
log_msg(4, "After adding %s, scratchL+%ld now equals %ld", fname, file_len_K, scratchL);
if (feof(fin)) {
break;
}
mr_free(fname);
}
mr_free(fname);
}
log_it("Closing...");
paranoid_fclose(fin);
log_it("Finished calculating total size of all biggiefiles");
log_it("Total size of all biggiefiles = %ld Kb", scratchL);
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 = NULL;
char *command = NULL;
long long llres;
/*@ pointers **************************************************** */
char *p;
FILE *fin;
/*@ end vars *************************************************** */
mr_asprintf(command, "du -sk %s", mountpt);
errno = 0;
fin = popen(command, "r");
if (errno) {
log_it("popen() FAILED: command=%s, mountpt=%s, fin=%d, errno=%d, strerror=%s", command, mountpt, fin, errno, strerror(errno));
llres = 0;
} else {
mr_getline(tmp, 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');
}
mr_free(tmp);
}
mr_free(command);
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 = NULL;
int res = 0;
mr_asprintf(command, "which %s > /dev/null 2> /dev/null", fname);
res = system(command);
mr_free(command);
if (res) {
log_to_screen("Please install '%s'. I cannot find it on your system.", fname);
log_to_screen("There may be hyperlink at http://www.mondorescue.org 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);
}
res = fscanf(fin, "%s\n", contents);
i = strlen(contents);
if (i > 0 && contents[i - 1] < 32) {
contents[i - 1] = '\0';
}
paranoid_fclose(fin);
res = 0;
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()
{
/*@ Char buffers ** */
char *command = NULL;
char *tmp = NULL;
char old_pwd[MAX_STR_LEN];
int res = 0;
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);
}
mr_asprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home, bkpinfo->scratchdir);
log_msg(4, "command = %s", command);
res = run_program_and_log_output(command, 1);
mr_free(command);
if (res) {
fatal_error("Failed to copy Mondo's stuff to scratchdir");
}
mr_asprintf(tmp, "%s/payload.tgz", g_mondo_home);
if (does_file_exist(tmp)) {
log_it("Untarring payload %s to scratchdir %s", tmp, bkpinfo->scratchdir);
if (getcwd(old_pwd, MAX_STR_LEN - 1)) {
// FIXME
}
if (chdir(bkpinfo->scratchdir)) {
// FIXME
}
mr_asprintf(command, "tar -zxvf %s", tmp);
res = run_program_and_log_output(command, FALSE);
if (res) {
mr_free(command);
mr_free(tmp);
fatal_error("Failed to untar payload");
}
mr_free(command);
if (chdir(old_pwd)) {
// FIXME
}
}
mr_free(tmp);
mr_asprintf(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");
}
mr_free(command);
mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("which mondorestore"));
if (!tmp[0]) {
mr_free(tmp);
fatal_error("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
}
mr_asprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
mr_free(tmp);
res = run_program_and_log_output(command, FALSE);
if (res) {
mr_free(command);
fatal_error("Failed to copy mondorestore to tmpdir");
}
mr_free(command);
mr_asprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
paranoid_system(command);
mr_free(command);
if (bkpinfo->postnuke_tarball[0]) {
mr_asprintf(command, "cp -f %s %s/post-nuke.tgz", bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
res = run_program_and_log_output(command, FALSE);
mr_free(command);
if (res) {
fatal_error("Unable to copy post-nuke tarball to tmpdir");
}
}
mvaddstr_and_log_it(g_currentY++, 74, "Done.");
}
/**
* Store the client's NETFS configuration in files to be restored at restore-time.
* Assumes that @c bkpinfo->media_type = netfs, but does not check for this.
* @param bkpinfo The backup information structure. Fields used:
* - @c netfs_mount
* - @c tmpdir
*/
void store_netfs_config()
{
/*@ buffers ******** */
char *netfs_dev = NULL;
char *netfs_client_hwaddr = NULL;
char *command = NULL;
/********
* If the Network device found above is a bonded device,
* we need to replace it with an ethN device or the
* networking will not start during an Network restore.
*
* If the Network device in netfs_dev begins with the word "bond", or alb or aft
* look for the corresponding slave ethN device and copy it to netfs_dev.
* Using the common MAC address
********/
if (!strncmp(netfs_dev, "bond", 4) || !strncmp(netfs_dev, "alb", 3) || !strncmp(netfs_dev, "aft", 3)) {
log_to_screen("Found bonding device %s; looking for corresponding ethN slave device\n", netfs_dev);
mr_asprintf(command, "ifconfig | grep -E '%s' | grep -v '%s' | head -n1 | cut -d' ' -f1",netfs_client_hwaddr,netfs_dev);
mr_asprintf(netfs_dev, "%s", call_program_and_get_last_line_of_output(command));
mr_free(command);
log_to_screen("Replacing it with %s\n", netfs_dev);
}
log_it("Finished storing Network 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(long noof_sets)
{
/*@ buffers *************** */
char *tmp = NULL;
char *mds = NULL;
/*@ long long ************* */
long long scratchLL;
if (bkpinfo->media_size <= 0) {
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());
scratchLL = (scratchLL / 1024) / bkpinfo->media_size;
scratchLL++;
if (bkpinfo->use_lzo) {
scratchLL = (scratchLL * 2) / 3;
} else if (bkpinfo->use_gzip) {
scratchLL = (scratchLL * 2) / 3;
} else if (bkpinfo->use_lzma) {
scratchLL = (scratchLL * 2) / 3;
} else {
scratchLL = scratchLL / 2;
}
if (!scratchLL) {
scratchLL++;
}
if (scratchLL <= 1) {
mds = media_descriptor_string(bkpinfo->backup_media_type);
mr_asprintf(tmp, "Your backup will probably occupy a single %s. Maybe two.", mds);
mr_free(mds);
} else if (scratchLL > 4) {
mr_asprintf(tmp, "Your backup will occupy one meeeeellion media! (maybe %s)", number_to_text((int) (scratchLL + 1)));
} else {
mr_asprintf(tmp, "Your backup will occupy approximately %s media.", number_to_text((int) (scratchLL + 1)));
}
if (scratchLL < 50) {
log_to_screen(tmp);
}
mr_free(tmp);
}
/**
* 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 = NULL;
char *tmp = NULL;
char *p;
char *q = NULL;
q = strrchr(filename, '.');
if (q == NULL) {
return (FALSE);
}
mr_asprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
if (!does_file_exist(tmp)) {
mr_free(tmp);
return (FALSE);
}
/* TODO: This is just plain WRONG !! */
mr_asprintf(do_not_compress_these,"%s", last_line_of_file(tmp));
mr_free(tmp);
for (p = do_not_compress_these; p != NULL; p++) {
mr_asprintf(tmp, "%s", p);
if (strchr(tmp, ' ')) {
*(strchr(tmp, ' ')) = '\0';
}
if (!strcmp(q, tmp)) {
mr_free(tmp);
mr_free(do_not_compress_these);
return (TRUE);
}
if (!(p = strchr(p, ' '))) {
break;
}
mr_free(tmp);
}
mr_free(do_not_compress_these);
return (FALSE);
}
/* @} - end fileGroup */