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-rw-r--r--parse_synclist.c320
1 files changed, 0 insertions, 320 deletions
diff --git a/parse_synclist.c b/parse_synclist.c
deleted file mode 100644
index 0c2a7aa..0000000
--- a/parse_synclist.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- Copyright (C) 2006-2008 Renaissance Technologies Corp.
- main developer: HP Wei <hp@rentec.com>
-
- 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, 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; see the file COPYING.
- If not, write to the Free Software Foundation,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-
-#include "main.h"
-#include <stdlib.h>
-#include <limits.h> /* to define PATH_MAX */
-
-/*
- Get the next to-be-synced file from synclist which is the output of
- parseRsyncList.C
- The latter in turn parses the output from rsync.
- In other words, we use rsync in dry-run mode to get the
- files that need to be synced.
-
- to port to large_file environment: use off_t for size
-*/
-
-extern int verbose;
-
-char basedir[PATH_MAX]; /* baseDir for the syncing */
-FILE *fd;
-struct stat st; /* stat for the current file */
-
-unsigned int nEntries;
-int cur_entry; /* file id -- <0 if it needs backup */
-unsigned int nPages;
-unsigned int last_bytes; /* number of bytes for the last page */
-int toRmFirst = FALSE; /* flag rm existing file and then sync */
-int file_changed = FALSE; /* flag to indicate if file has been changed during syncing */
-
-unsigned int total_pages;
-off_t total_bytes;
-
-int isDelete, isHardlink;
-char filename[PATH_MAX];
-char fullname[PATH_MAX];
-char linktar[PATH_MAX];
-
-int init_synclist(char * synclist_path, char *bdir)
-{
- char line[PATH_MAX];
- nEntries = 0;
- strcpy(basedir, bdir);
-
- if ((fd = fopen(synclist_path, "r")) == NULL) {
- fprintf(stderr, "Cannot open synclist file = %s \n", synclist_path);
- return FAIL;
- }
-
- while (fgets(line, PATH_MAX, fd) != NULL) nEntries++;
- if (nEntries == 0) {
- fclose(fd);
- fprintf(stderr, "Empty entires in synclist file = %s\n", synclist_path);
- return SUCCESS; /* OK, nothing to sync */
- }
- rewind(fd);
-
- cur_entry = 0;
- total_pages = 0;
- total_bytes = 0;
-
- return SUCCESS;
-}
-
-/*
- pages_for_file calculates the number (int) of pages for the current file
- and returns that number in an (int) type.
- So, max_pages = 2**31 = 2147483648
- which corresponds to a file_size of 2**31 * 64512 = 1.38e14
- [ general limit = (1<<(sizeof(int)*8)) * PAGE_SIZE ]
- At that time, the type of page_number needs to be upgraded :)
-
- to_delete -> -1
- normal_file -> number_of_pages
- softlink -> 0
- hardlink -> 0
- directory -> 0
-*/
-int pages_for_file()
-{
- if (isDelete) { /* to be deleted directory or file */
- return TO_DELETE;
- }
-
- if (S_ISREG(st.st_mode)){
- int n;
- if (st.st_nlink > 1) return 0; /* hardlink file */
-
- n = (int)((st.st_size)/(off_t)PAGE_SIZE); /* regular file */
- if ((st.st_size)%((off_t)PAGE_SIZE) == 0) {
- last_bytes = (unsigned int)(PAGE_SIZE);
- return n;
- } else {
- last_bytes = (unsigned int)(st.st_size - (off_t)n * (off_t)PAGE_SIZE);
- return n+1;
- }
- /*return ((st.st_size)%((off_t)PAGE_SIZE) == 0) ? n : n+1 ;*/
- }
- if (S_ISLNK(st.st_mode)){
- return 0; /* softlink */
- }
- return 0; /* directory */
-}
-
-off_t bytes_for_file()
-{
- return st.st_size;
-}
-
-unsigned int get_nPages() /* for this file */
-{
- return nPages;
-}
-
-void strip(char * str)
-{
- /* remove trailing \n and spaces */
- char *pc = &str[strlen(str)-1];
- while (*pc == ' ' || *pc == '\n') {
- *(pc--) = '\0';
- }
-}
-
-int same_stat_for_file()
-{
- /* check if current stat is same as that when get_next_entry is called */
- struct stat st1;
-
- if(lstat(fullname, &st1) < 0) {
- if (verbose >=1) perror(fullname);
- return FAIL;
- }
-
- if (st1.st_size != st.st_size || st1.st_mode != st.st_mode ||
- st1.st_mtime != st.st_mtime) {
- return FAIL; /* the file has changed */
- }
- return SUCCESS;
-
-}
-
-int is_hardlink_line(char * line)
-{
- /* when line is in the form of
- string1 string2
- it can be either a filename (string1 string2)
- or a hardlink string1 => string2
- */
- struct stat st;
- char fn[PATH_MAX];
- strcpy(fn, basedir);
- strcat(fn, "/");
- strcat(fn, line);
-
- /* if the whole line is not a file, then we are dealing with hardlink case */
- return (lstat(fn, &st) < 0);
- /* cannot deal with the situation
- str1 is a file
- str2 is a hardlink to str1
- str1 str2 is a file
- AND if we need to sync
- str1 and 'str1 str2' at the same time.
- But this situation is very rare. */
-}
-
-int get_next_entry(int current_file_id)
-{
- char *c;
- char line[PATH_MAX];
-
- /* inside this function, cur_entry is set to be positve to facilitate processing */
- cur_entry = current_file_id; /* from main loop's index, starting with 1 */
-
- isDelete = FALSE;
- isHardlink = FALSE;
-
- fgets(line, PATH_MAX, fd);
- strip(line);
-
- if (current_file_id == nEntries) {
- fclose(fd); /* close the synclist file */
- if (verbose>=2) fprintf(stderr, "no more entry in synclist.\n");
- }
-
- if (verbose>=2) {
- fprintf(stderr, "Got current entry = %d (total= %d)\n", cur_entry, nEntries);
- fprintf(stderr, "%s\n", line);
- }
-
- strcpy(fullname, basedir);
- strcat(fullname, "/");
- if (strncmp(line, "deleting ", 9)==0) {
- isDelete = TRUE;
- nPages = -1;
- strcat(fullname, &line[9]);
- strcpy(filename, &line[9]);
- if (needBackup(fullname)) cur_entry = -cur_entry;
- return SUCCESS;
- } else if ((c = strchr(line, ' '))!=NULL && is_hardlink_line(line)) {
- /* is it a hardlink -- two filenames separated by a space */
- char fn[PATH_MAX];
- isHardlink = TRUE;
- strncpy(fn, line, (c - line));
- fn[c-line] = '\0';
- strcat(fullname, fn);
- strcpy(filename, fn);
- strcpy(linktar, c+1);
- } else {
- /* normal, single entry */
- strcat(fullname, line);
- strcpy(filename, line);
- }
-
- /* update stat */
- if(lstat(fullname, &st) < 0) {
- if (verbose >=1) perror(fullname);
- return FAIL;
- }
-
- if (S_ISLNK(st.st_mode)) {
- int linklen;
- linklen = readlink(fullname, linktar, PATH_MAX);
- /* readlink doesn't null-terminate the string */
- *(linktar + linklen) = '\0';
- } else if (st.st_nlink>1 && !isHardlink) {
- /* this is the target file that others (hard)link to.
- treat it like a normal file */
- st.st_nlink = 1;
- }
-
- nPages = pages_for_file();
- if (nPages > 0) { /* for regular files */
- total_pages += nPages;
- total_bytes += st.st_size;
- }
-
- if (needBackup(fullname)) cur_entry = -cur_entry;
-
- file_changed = FALSE;
-
- return SUCCESS;
-}
-
-void adjust_totals()
-{
- if (nPages > 0) {
- total_pages -= nPages;
- total_bytes -= st.st_size;
- }
-}
-
-/* some accessors */
-unsigned int total_entries() { return nEntries; }
-
-int current_entry() { return cur_entry; }
-
-int is_softlink() { return S_ISLNK(st.st_mode); }
-
-int is_hardlink() { return isHardlink; }
-
-int is_directory() { return S_ISDIR(st.st_mode); }
-
-char * getFilename() { /* relative to basedir */ return &filename[0]; }
-
-char * getFullname() { return &fullname[0]; }
-
-/*
- The following three fx are used to fill file_info into the send_buffer.
- They return the number of bytes being written into the buf, including the \0 byte.
-*/
-unsigned int fill_in_stat(char *buf)
-{
- /* load into buf area the stat info in ascii format */
- if (isDelete)
- sprintf(buf, "0 0 0 0 0 0 0 0");
- else {
- #ifdef _LARGEFILE_SOURCE
- sprintf(buf, "%u %u %u %u %llu %lu %lu %d", st.st_mode, st.st_nlink,
- st.st_uid, st.st_gid, st.st_size, st.st_atime, st.st_mtime,
- toRmFirst);
- #else
- sprintf(buf, "%u %u %u %u %lu %lu %lu %d", st.st_mode, st.st_nlink,
- st.st_uid, st.st_gid, st.st_size, st.st_atime, st.st_mtime,
- toRmFirst);
- #endif
- }
-
- return strlen(buf)+1;
-}
-
-unsigned int fill_in_filename(char * buf)
-{
- strcpy(buf, filename);
- return strlen(buf)+1;
-}
-
-unsigned int fill_in_linktar(char *buf)
-{
- strcpy(buf, linktar);
- return strlen(buf)+1;
-}
-
-
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