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- /*
- Copyright (C) Andrew Tridgell 1996
- Copyright (C) Paul Mackerras 1996
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- /* generate and receive file lists */
-
- #include "rsync.h"
-
- extern int csum_length;
-
- extern int verbose;
- extern int am_server;
- extern int always_checksum;
- extern off_t total_size;
-
- extern int cvs_exclude;
-
- extern int recurse;
-
- extern int one_file_system;
- extern int make_backups;
- extern int preserve_links;
- extern int preserve_hard_links;
- extern int preserve_perms;
- extern int preserve_devices;
- extern int preserve_uid;
- extern int preserve_gid;
- extern int preserve_times;
-
- static char **local_exclude_list = NULL;
-
- static void clean_fname(char *name);
-
-
- /*
- This function is used to check if a file should be included/excluded
- from the list of files based on its name and type etc
- */
- static int match_file_name(char *fname,struct stat *st)
- {
- if (check_exclude(fname,local_exclude_list)) {
- if (verbose > 2)
- fprintf(FERROR,"excluding file %s\n",fname);
- return 0;
- }
- return 1;
- }
-
- /* used by the one_file_system code */
- static dev_t filesystem_dev;
-
- static void set_filesystem(char *fname)
- {
- struct stat st;
- if (lstat(fname,&st) != 0) return;
- filesystem_dev = st.st_dev;
- }
-
-
- static void send_directory(int f,struct file_list *flist,char *dir);
-
- static char *flist_dir = NULL;
-
- extern void (*send_file_entry)(struct file_struct *file,int f);
- extern void (*receive_file_entry)(struct file_struct *file,
- unsigned char flags,int f);
-
-
- void send_file_entry_v11(struct file_struct *file,int f)
- {
- unsigned char flags;
- static time_t last_time=0;
- static mode_t last_mode=0;
- static dev_t last_rdev=0;
- static uid_t last_uid=0;
- static gid_t last_gid=0;
- static char lastname[MAXPATHLEN]="";
- int l1,l2;
-
- if (f == -1) return;
-
- if (!file) {
- write_byte(f,0);
- return;
- }
-
- flags = FILE_VALID;
-
- if (file->mode == last_mode) flags |= SAME_MODE;
- if (file->rdev == last_rdev) flags |= SAME_RDEV;
- if (file->uid == last_uid) flags |= SAME_UID;
- if (file->gid == last_gid) flags |= SAME_GID;
- if (file->modtime == last_time) flags |= SAME_TIME;
-
- for (l1=0;lastname[l1] && file->name[l1] == lastname[l1];l1++) ;
- l2 = strlen(file->name) - l1;
-
- if (l1 > 0) flags |= SAME_NAME;
- if (l2 > 255) flags |= LONG_NAME;
-
- write_byte(f,flags);
- if (flags & SAME_NAME)
- write_byte(f,l1);
- if (flags & LONG_NAME)
- write_int(f,l2);
- else
- write_byte(f,l2);
- write_buf(f,file->name+l1,l2);
-
- write_int(f,(int)file->length);
- if (!(flags & SAME_TIME))
- write_int(f,(int)file->modtime);
- if (!(flags & SAME_MODE))
- write_int(f,(int)file->mode);
- if (preserve_uid && !(flags & SAME_UID))
- write_int(f,(int)file->uid);
- if (preserve_gid && !(flags & SAME_GID))
- write_int(f,(int)file->gid);
- if (preserve_devices && IS_DEVICE(file->mode) && !(flags & SAME_RDEV))
- write_int(f,(int)file->rdev);
-
- #if SUPPORT_LINKS
- if (preserve_links && S_ISLNK(file->mode)) {
- write_int(f,strlen(file->link));
- write_buf(f,file->link,strlen(file->link));
- }
- #endif
-
- #if SUPPORT_HARD_LINKS
- if (preserve_hard_links && S_ISREG(file->mode)) {
- write_int(f,file->dev);
- write_int(f,file->inode);
- }
- #endif
-
- if (always_checksum) {
- write_buf(f,file->sum,csum_length);
- }
-
- last_mode = file->mode;
- last_rdev = file->rdev;
- last_uid = file->uid;
- last_gid = file->gid;
- last_time = file->modtime;
-
- strcpy(lastname,file->name);
- lastname[255] = 0;
- }
-
-
-
- void receive_file_entry_v11(struct file_struct *file,
- unsigned char flags,int f)
- {
- static time_t last_time=0;
- static mode_t last_mode=0;
- static dev_t last_rdev=0;
- static uid_t last_uid=0;
- static gid_t last_gid=0;
- static char lastname[MAXPATHLEN]="";
- int l1=0,l2=0;
-
- if (flags & SAME_NAME)
- l1 = read_byte(f);
-
- if (flags & LONG_NAME)
- l2 = read_int(f);
- else
- l2 = read_byte(f);
-
- bzero((char *)file,sizeof(*file));
-
- file->name = (char *)malloc(l1+l2+1);
- if (!file->name) out_of_memory("receive_file_entry");
-
- strncpy(file->name,lastname,l1);
- read_buf(f,file->name+l1,l2);
- file->name[l1+l2] = 0;
-
- file->length = (off_t)read_int(f);
- file->modtime = (flags & SAME_TIME) ? last_time : (time_t)read_int(f);
- file->mode = (flags & SAME_MODE) ? last_mode : (mode_t)read_int(f);
- if (preserve_uid)
- file->uid = (flags & SAME_UID) ? last_uid : (uid_t)read_int(f);
- if (preserve_gid)
- file->gid = (flags & SAME_GID) ? last_gid : (gid_t)read_int(f);
- if (preserve_devices && IS_DEVICE(file->mode))
- file->rdev = (flags & SAME_RDEV) ? last_rdev : (dev_t)read_int(f);
-
- #if SUPPORT_LINKS
- if (preserve_links && S_ISLNK(file->mode)) {
- int l = read_int(f);
- file->link = (char *)malloc(l+1);
- if (!file->link) out_of_memory("receive_file_entry");
- read_buf(f,file->link,l);
- file->link[l] = 0;
- }
- #endif
-
- #if SUPPORT_HARD_LINKS
- if (preserve_hard_links && S_ISREG(file->mode)) {
- file->dev = read_int(f);
- file->inode = read_int(f);
- }
- #endif
-
- if (always_checksum)
- read_buf(f,file->sum,csum_length);
-
- last_mode = file->mode;
- last_rdev = file->rdev;
- last_uid = file->uid;
- last_gid = file->gid;
- last_time = file->modtime;
-
- strcpy(lastname,file->name);
- lastname[255] = 0;
- }
-
-
-
- static struct file_struct *make_file(char *fname)
- {
- static struct file_struct file;
- struct stat st;
- char sum[SUM_LENGTH];
-
- bzero(sum,SUM_LENGTH);
-
- if (lstat(fname,&st) != 0) {
- fprintf(FERROR,"%s: %s\n",
- fname,strerror(errno));
- return NULL;
- }
-
- if (S_ISDIR(st.st_mode) && !recurse) {
- fprintf(FERROR,"skipping directory %s\n",fname);
- return NULL;
- }
-
- if (one_file_system && st.st_dev != filesystem_dev)
- return NULL;
-
- if (!match_file_name(fname,&st))
- return NULL;
-
- if (verbose > 2)
- fprintf(FERROR,"make_file(%s)\n",fname);
-
- bzero((char *)&file,sizeof(file));
-
- file.name = strdup(fname);
- file.modtime = st.st_mtime;
- file.length = st.st_size;
- file.mode = st.st_mode;
- file.uid = st.st_uid;
- file.gid = st.st_gid;
- file.dev = st.st_dev;
- file.inode = st.st_ino;
- #ifdef HAVE_ST_RDEV
- file.rdev = st.st_rdev;
- #endif
-
- #if SUPPORT_LINKS
- if (S_ISLNK(st.st_mode)) {
- int l;
- char lnk[MAXPATHLEN];
- if ((l=readlink(fname,lnk,MAXPATHLEN-1)) == -1) {
- fprintf(FERROR,"readlink %s : %s\n",fname,strerror(errno));
- return NULL;
- }
- lnk[l] = 0;
- file.link = strdup(lnk);
- }
- #endif
-
- if (always_checksum && S_ISREG(st.st_mode)) {
- file_checksum(fname,file.sum,st.st_size);
- }
-
- if (flist_dir)
- file.dir = strdup(flist_dir);
- else
- file.dir = NULL;
-
- if (!S_ISDIR(st.st_mode))
- total_size += st.st_size;
-
- return &file;
- }
-
-
-
- static void send_file_name(int f,struct file_list *flist,char *fname)
- {
- struct file_struct *file;
-
- file = make_file(fname);
-
- if (!file) return;
-
- if (flist->count >= flist->malloced) {
- flist->malloced += 100;
- flist->files = (struct file_struct *)realloc(flist->files,
- sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- out_of_memory("send_file_name");
- }
-
- if (strcmp(file->name,".") && strcmp(file->name,"/")) {
- flist->files[flist->count++] = *file;
- send_file_entry(file,f);
- }
-
- if (S_ISDIR(file->mode) && recurse) {
- char **last_exclude_list = local_exclude_list;
- send_directory(f,flist,file->name);
- local_exclude_list = last_exclude_list;
- return;
- }
- }
-
-
-
- static void send_directory(int f,struct file_list *flist,char *dir)
- {
- DIR *d;
- struct dirent *di;
- char fname[MAXPATHLEN];
- int l;
- char *p;
-
- d = opendir(dir);
- if (!d) {
- fprintf(FERROR,"%s: %s\n",
- dir,strerror(errno));
- return;
- }
-
- strcpy(fname,dir);
- l = strlen(fname);
- if (fname[l-1] != '/')
- strcat(fname,"/");
- p = fname + strlen(fname);
-
- if (cvs_exclude) {
- strcpy(p,".cvsignore");
- local_exclude_list = make_exclude_list(fname,NULL,0);
- }
-
- for (di=readdir(d); di; di=readdir(d)) {
- if (strcmp(di->d_name,".")==0 ||
- strcmp(di->d_name,"..")==0)
- continue;
- strcpy(p,di->d_name);
- send_file_name(f,flist,fname);
- }
-
- closedir(d);
- }
-
-
-
- struct file_list *send_file_list(int f,int argc,char *argv[])
- {
- int i,l;
- struct stat st;
- char *p,*dir;
- char dbuf[MAXPATHLEN];
- struct file_list *flist;
-
- if (verbose && recurse && !am_server) {
- fprintf(FINFO,"building file list ... ");
- fflush(FINFO);
- }
-
- flist = (struct file_list *)malloc(sizeof(flist[0]));
- if (!flist) out_of_memory("send_file_list");
-
- flist->count=0;
- flist->malloced = 100;
- flist->files = (struct file_struct *)malloc(sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files) out_of_memory("send_file_list");
-
- for (i=0;i<argc;i++) {
- char fname2[MAXPATHLEN];
- char *fname = fname2;
-
- strcpy(fname,argv[i]);
-
- l = strlen(fname);
- if (l != 1 && fname[l-1] == '/') {
- strcat(fname,".");
- }
-
- if (lstat(fname,&st) != 0) {
- fprintf(FERROR,"%s : %s\n",fname,strerror(errno));
- continue;
- }
-
- if (S_ISDIR(st.st_mode) && !recurse) {
- fprintf(FERROR,"skipping directory %s\n",fname);
- continue;
- }
-
- dir = NULL;
- p = strrchr(fname,'/');
- if (p) {
- *p = 0;
- if (p == fname)
- dir = "/";
- else
- dir = fname;
- fname = p+1;
- }
- if (!*fname)
- fname = ".";
-
- if (dir && *dir) {
- if (getwd(dbuf) == NULL) {
- fprintf(FERROR,"getwd : %s\n",strerror(errno));
- exit_cleanup(1);
- }
- if (chdir(dir) != 0) {
- fprintf(FERROR,"chdir %s : %s\n",dir,strerror(errno));
- continue;
- }
- flist_dir = dir;
- if (one_file_system)
- set_filesystem(fname);
- send_file_name(f,flist,fname);
- flist_dir = NULL;
- if (chdir(dbuf) != 0) {
- fprintf(FERROR,"chdir %s : %s\n",dbuf,strerror(errno));
- exit_cleanup(1);
- }
- continue;
- }
-
- if (one_file_system)
- set_filesystem(fname);
- send_file_name(f,flist,fname);
- }
-
- if (f != -1) {
- send_file_entry(NULL,f);
- write_flush(f);
- }
-
- if (verbose && recurse && !am_server)
- fprintf(FINFO,"done\n");
-
- clean_flist(flist);
-
- return flist;
- }
-
-
- struct file_list *recv_file_list(int f)
- {
- struct file_list *flist;
- unsigned char flags;
-
- if (verbose && recurse && !am_server) {
- fprintf(FINFO,"receiving file list ... ");
- fflush(FINFO);
- }
-
- flist = (struct file_list *)malloc(sizeof(flist[0]));
- if (!flist)
- goto oom;
-
- flist->count=0;
- flist->malloced=100;
- flist->files = (struct file_struct *)malloc(sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- goto oom;
-
-
- for (flags=read_byte(f); flags; flags=read_byte(f)) {
- int i = flist->count;
-
- if (i >= flist->malloced) {
- flist->malloced += 100;
- flist->files =(struct file_struct *)realloc(flist->files,
- sizeof(flist->files[0])*
- flist->malloced);
- if (!flist->files)
- goto oom;
- }
-
- receive_file_entry(&flist->files[i],flags,f);
-
- if (S_ISREG(flist->files[i].mode))
- total_size += flist->files[i].length;
-
- flist->count++;
-
- if (verbose > 2)
- fprintf(FERROR,"recv_file_name(%s)\n",flist->files[i].name);
- }
-
-
- if (verbose > 2)
- fprintf(FERROR,"received %d names\n",flist->count);
-
- clean_flist(flist);
-
- if (verbose && recurse && !am_server) {
- fprintf(FINFO,"done\n");
- }
-
- return flist;
-
- oom:
- out_of_memory("recv_file_list");
- return NULL; /* not reached */
- }
-
-
- int file_compare(struct file_struct *f1,struct file_struct *f2)
- {
- if (!f1->name && !f2->name) return 0;
- if (!f1->name) return -1;
- if (!f2->name) return 1;
- return strcmp(f1->name,f2->name);
- }
-
-
- int flist_find(struct file_list *flist,struct file_struct *f)
- {
- int low=0,high=flist->count;
-
- while (low != high) {
- int mid = (low+high)/2;
- int ret = file_compare(&flist->files[mid],f);
- if (ret == 0) return mid;
- if (ret > 0)
- high=mid;
- else
- low=mid+1;
- }
- if (file_compare(&flist->files[low],f) == 0)
- return low;
- return -1;
- }
-
-
- static void clean_fname(char *name)
- {
- char *p;
- int l;
- int modified = 1;
-
- if (!name) return;
-
- while (modified) {
- modified = 0;
-
- if ((p=strstr(name,"/./"))) {
- modified = 1;
- while (*p) {
- p[0] = p[2];
- p++;
- }
- }
-
- if ((p=strstr(name,"//"))) {
- modified = 1;
- while (*p) {
- p[0] = p[1];
- p++;
- }
- }
-
- if (strncmp(p=name,"./",2) == 0) {
- modified = 1;
- while (*p) {
- p[0] = p[2];
- p++;
- }
- }
-
- l = strlen(p=name);
- if (l > 1 && p[l-1] == '/') {
- modified = 1;
- p[l-1] = 0;
- }
- }
- }
-
-
- /*
- * This routine ensures we don't have any duplicate names in our file list.
- * duplicate names can cause corruption because of the pipelining
- */
- void clean_flist(struct file_list *flist)
- {
- int i;
-
- if (!flist || flist->count == 0)
- return;
-
- for (i=0;i<flist->count;i++) {
- clean_fname(flist->files[i].name);
- }
-
- qsort(flist->files,flist->count,
- sizeof(flist->files[0]),
- (int (*)())file_compare);
-
- for (i=1;i<flist->count;i++) {
- if (flist->files[i].name &&
- strcmp(flist->files[i].name,flist->files[i-1].name) == 0) {
- if (verbose > 1 && !am_server)
- fprintf(FERROR,"removing duplicate name %s from file list %d\n",
- flist->files[i-1].name,i-1);
- free(flist->files[i-1].name);
- bzero((char *)&flist->files[i-1],sizeof(flist->files[i-1]));
- }
- }
- }
-
-