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/* -*- c-file-style: "linux" -*-      Weiss 1/1999   Batch utilities for rsync. */ #include "rsync.h"#include <time.h> extern char *batch_prefix; struct file_list *batch_flist; static char rsync_flist_file[] = ".rsync_flist";static char rsync_csums_file[] = ".rsync_csums";static char rsync_delta_file[] = ".rsync_delta";static char rsync_argvs_file[] = ".rsync_argvs"; static int fdb;static int fdb_delta;static int fdb_open;static int fdb_close; void write_batch_flist_file(char *buff, int bytes_to_write){	char filename[MAXPATHLEN]; 	if (fdb_open) {		/* Set up file extension */		strlcpy(filename, batch_prefix, sizeof(filename));		strlcat(filename, rsync_flist_file, sizeof(filename)); 		/*		 * Open batch flist file for writing;		 * create it if it doesn't exist		 */		fdb = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,			    S_IREAD | S_IWRITE);		if (fdb == -1) {			rprintf(FERROR, "Batch file %s open error: %s\n",				filename, strerror(errno));			close(fdb);			exit_cleanup(1);		}		fdb_open = 0;	} 	/* Write buffer to batch flist file */ 	if (write(fdb, buff, bytes_to_write) == -1) {		rprintf(FERROR, "Batch file %s write error: %s\n",			filename, strerror(errno));		close(fdb);		exit_cleanup(1);	} 	if (fdb_close) {		close(fdb);	}} void write_batch_flist_info(int flist_count, struct file_struct **fptr){	int i;	int bytes_to_write; 	/* Write flist info to batch file */ 	bytes_to_write =	    sizeof(unsigned) +	    sizeof(time_t) +	    sizeof(OFF_T) +	    sizeof(mode_t) +	    sizeof(INO64_T) +	    sizeof(DEV64_T) +	    sizeof(DEV64_T) +	    sizeof(uid_t) +	    sizeof(gid_t); 	fdb_open = 1;	fdb_close = 0; 	for (i = 0; i < flist_count; i++) {		write_batch_flist_file((char *) fptr[i], bytes_to_write);		write_char_bufs(fptr[i]->basename);		write_char_bufs(fptr[i]->dirname);		write_char_bufs(fptr[i]->basedir);		write_char_bufs(fptr[i]->link);		if (i == flist_count - 1) {			fdb_close = 1;		}		write_char_bufs(fptr[i]->sum);	}} void write_char_bufs(char *buf){	/* Write the size of the string which will follow  */ 	char b[4]; 	SIVAL(b, 0, buf != NULL ? strlen(buf) : 0); 	write_batch_flist_file(b, sizeof(int)); 	/*  Write the string if there is one */ 	if (buf != NULL) {		write_batch_flist_file(buf, strlen(buf));	}} void write_batch_argvs_file(int argc, char *argv[]){	int fdb;	int i;	char buff[256]; /* XXX */	char buff2[MAXPATHLEN + 6];	char filename[MAXPATHLEN]; 	/* Set up file extension */	strlcpy(filename, batch_prefix, sizeof(filename));	strlcat(filename, rsync_argvs_file, sizeof(filename)); 	/*	 * Open batch argvs file for writing;	 * create it if it doesn't exist	 */	fdb = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,		      S_IREAD | S_IWRITE | S_IEXEC);	if (fdb == -1) {		rprintf(FERROR, "Batch file %s open error: %s\n",			filename, strerror(errno));		close(fdb);		exit_cleanup(1);	}	buff[0] = '\0'; 	/* Write argvs info to batch file */ 	for (i = 0; i < argc; ++i) {		if (i == argc - 2) /* Skip source directory on cmdline */		    continue;		/*		 * FIXME:		 * I think directly manipulating argv[] is probably bogus		 */		if (!strncmp(argv[i], "--write-batch",			strlen("--write-batch"))) {			/* Safer to change it here than script */			/*			 * Change to --read-batch=prefix			 * to get ready for remote			 */			strlcat(buff, "--read-batch=", sizeof(buff));			strlcat(buff, batch_prefix, sizeof(buff));		} else		if (i == argc - 1) {		    snprintf(buff2, sizeof(buff2), "${1:-%s}", argv[i]);		    strlcat(buff, buff2, sizeof(buff));		}		else {			strlcat(buff, argv[i], sizeof(buff));		} 		if (i < (argc - 1)) {			strlcat(buff, " ", sizeof(buff));		}	}	strlcat(buff, "\n", sizeof(buff));	if (!write(fdb, buff, strlen(buff))) {		rprintf(FERROR, "Batch file %s write error: %s\n",			filename, strerror(errno));		close(fdb);		exit_cleanup(1);	}	close(fdb);} struct file_list *create_flist_from_batch(void){	unsigned char flags; 	fdb_open = 1;	fdb_close = 0; 	batch_flist = new(struct file_list);	if (!batch_flist) {		out_of_memory("create_flist_from_batch");	}	batch_flist->count = 0;	batch_flist->malloced = 1000;	batch_flist->files = new_array(struct file_struct *,				       batch_flist->malloced);	if (!batch_flist->files) {		out_of_memory("create_flist_from_batch");	} 	for (flags = read_batch_flags(); flags; flags = read_batch_flags()) { 		int i = batch_flist->count; 		if (i >= batch_flist->malloced) {			if (batch_flist->malloced < 1000)				batch_flist->malloced += 1000;			else				batch_flist->malloced *= 2;			batch_flist->files				= realloc_array(batch_flist->files,						struct file_struct *,						batch_flist->malloced);			if (!batch_flist->files)				out_of_memory("create_flist_from_batch");		}		read_batch_flist_info(&batch_flist->files[i]);		batch_flist->files[i]->flags = flags; 		batch_flist->count++;	} 	return batch_flist;} int read_batch_flist_file(char *buff, int len){	int bytes_read;	char filename[MAXPATHLEN]; 	if (fdb_open) {		/* Set up file extension */		strlcpy(filename, batch_prefix, sizeof(filename));		strlcat(filename, rsync_flist_file, sizeof(filename)); 		/* Open batch flist file for reading */		fdb = do_open(filename, O_RDONLY, 0);		if (fdb == -1) {			rprintf(FERROR, "Batch file %s open error: %s\n",				filename, strerror(errno));			close(fdb);			exit_cleanup(1);		}		fdb_open = 0;	} 	/* Read flist batch file */ 	switch (bytes_read = read(fdb, buff, len)) {	    case -1:		rprintf(FERROR, "Batch file %s read error: %s\n",			filename, strerror(errno));		close(fdb);		exit_cleanup(1);		break;	    case 0:	/* EOF */		close(fdb);	} 	return bytes_read;} unsigned char read_batch_flags(void){	int flags; 	if (read_batch_flist_file((char *) &flags, 4)) {		return 1;	} else {		return 0;	}} void read_batch_flist_info(struct file_struct **fptr){	int int_str_len;	char char_str_len[4];	char buff[256];	struct file_struct *file; 	file = new(struct file_struct);	if (!file)		out_of_memory("read_batch_flist_info");	memset((char *) file, 0, sizeof(*file)); 	*fptr = file; 	/*	 * Keep these in sync with bytes_to_write assignment	 * in write_batch_flist_info()	 */	read_batch_flist_file((char *) &file->modtime, sizeof(time_t));	read_batch_flist_file((char *) &file->length, sizeof(OFF_T));	read_batch_flist_file((char *) &file->mode, sizeof(mode_t));	read_batch_flist_file((char *) &file->inode, sizeof(INO64_T));	read_batch_flist_file((char *) &file->dev, sizeof(DEV64_T));	read_batch_flist_file((char *) &file->rdev, sizeof(DEV64_T));	read_batch_flist_file((char *) &file->uid, sizeof(uid_t));	read_batch_flist_file((char *) &file->gid, sizeof(gid_t));	read_batch_flist_file(char_str_len, sizeof(char_str_len));	int_str_len = IVAL(char_str_len, 0);	if (int_str_len > 0) {		read_batch_flist_file(buff, int_str_len);		buff[int_str_len] = '\0';		file->basename = strdup(buff);	} else {		file->basename = NULL;	} 	read_batch_flist_file(char_str_len, sizeof(char_str_len));	int_str_len = IVAL(char_str_len, 0);	if (int_str_len > 0) {		read_batch_flist_file(buff, int_str_len);		buff[int_str_len] = '\0';		file[0].dirname = strdup(buff);	} else {		file[0].dirname = NULL;	} 	read_batch_flist_file(char_str_len, sizeof(char_str_len));	int_str_len = IVAL(char_str_len, 0);	if (int_str_len > 0) {		read_batch_flist_file(buff, int_str_len);		buff[int_str_len] = '\0';		file[0].basedir = strdup(buff);	} else {		file[0].basedir = NULL;	} 	read_batch_flist_file(char_str_len, sizeof(char_str_len));	int_str_len = IVAL(char_str_len, 0);	if (int_str_len > 0) {		read_batch_flist_file(buff, int_str_len);		buff[int_str_len] = '\0';		file[0].link = strdup(buff);	} else {		file[0].link = NULL;	} 	read_batch_flist_file(char_str_len, sizeof(char_str_len));	int_str_len = IVAL(char_str_len, 0);	if (int_str_len > 0) {		read_batch_flist_file(buff, int_str_len);		buff[int_str_len] = '\0';		file[0].sum = strdup(buff);	} else {		file[0].sum = NULL;	}} void write_batch_csums_file(void *buff, int bytes_to_write){	static int fdb_open = 1;	char filename[MAXPATHLEN]; 	if (fdb_open) {		/* Set up file extension */		strlcpy(filename, batch_prefix, sizeof(filename));		strlcat(filename, rsync_csums_file, sizeof(filename)); 		/*		 * Open batch csums file for writing;		 * create it if it doesn't exist		 */		fdb = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,			    S_IREAD | S_IWRITE);		if (fdb == -1) {			rprintf(FERROR, "Batch file %s open error: %s\n",				filename, strerror(errno));			close(fdb);			exit_cleanup(1);		}		fdb_open = 0;	} 	/* Write buffer to batch csums file */ 	if (write(fdb, buff, bytes_to_write) == -1) {		rprintf(FERROR, "Batch file %s write error: %s\n",			filename, strerror(errno));		close(fdb);		exit_cleanup(1);	}} void close_batch_csums_file(void){	close(fdb);}  /** * Write csum info to batch file  * * @todo This will break if s->count is ever larger than maxint.  The * batch code should probably be changed to consistently use the * variable-length integer routines, which is probably a compatible * change. **/void write_batch_csum_info(int *flist_entry, int flist_count,			   struct sum_struct *s){	size_t i;	int int_count;	extern int csum_length; 	fdb_open = 1; 	write_batch_csums_file(flist_entry, sizeof(int));	int_count = s ? (int) s->count : 0;	write_batch_csums_file(&int_count, sizeof int_count);		if (s) {		for (i = 0; i < s->count; i++) {			write_batch_csums_file(&s->sums[i].sum1, sizeof(uint32));			if ((*flist_entry == flist_count - 1)			    && (i == s->count - 1)) {				fdb_close = 1;			}			write_batch_csums_file(s->sums[i].sum2, csum_length);		}	}} int read_batch_csums_file(char *buff, int len){	static int fdb_open = 1;	int bytes_read;	char filename[MAXPATHLEN]; 	if (fdb_open) {		/* Set up file extension */		strlcpy(filename, batch_prefix, sizeof(filename));		strlcat(filename, rsync_csums_file, sizeof(filename)); 		/* Open batch flist file for reading */		fdb = do_open(filename, O_RDONLY, 0);		if (fdb == -1) {			rprintf(FERROR, "Batch file %s open error: %s\n",				filename, strerror(errno));			close(fdb);			exit_cleanup(1);		}		fdb_open = 0;	} 	/* Read csums batch file */ 	bytes_read = read(fdb, buff, len); 	if (bytes_read == -1) {		rprintf(FERROR, "Batch file %s read error: %s\n",			filename, strerror(errno));		close(fdb);		exit_cleanup(1);	} 	return bytes_read;} void read_batch_csum_info(int flist_entry, struct sum_struct *s,			  int *checksums_match){	int i;	int file_flist_entry;	int file_chunk_ct;	uint32 file_sum1;	char file_sum2[SUM_LENGTH];	extern int csum_length; 	read_batch_csums_file((char *) &file_flist_entry, sizeof(int));	if (file_flist_entry != flist_entry) {		rprintf(FINFO, "file_flist_entry (%d) != flist_entry (%d)\n",			file_flist_entry, flist_entry);		close(fdb);		exit_cleanup(1); 	} else {		read_batch_csums_file((char *) &file_chunk_ct,				      sizeof(int));		*checksums_match = 1;		for (i = 0; i < file_chunk_ct; i++) { 			read_batch_csums_file((char *) &file_sum1,					      sizeof(uint32));			read_batch_csums_file(file_sum2, csum_length); 			if ((s->sums[i].sum1 != file_sum1) ||			    (memcmp(s->sums[i].sum2, file_sum2, csum_length)				!= 0)) {				*checksums_match = 0;			}		}		/*  end for  */	}} void write_batch_delta_file(char *buff, int bytes_to_write){	static int fdb_delta_open = 1;	char filename[MAXPATHLEN]; 

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