static int do_delete(struct dirent *d) { int ret; struct stat sb; char realname[PATH_MAX]; char savename[PATH_MAX]; sprintf(realname, "%s%s/%s", base1, prefix, d->d_name); sprintf(savename, "%s%s/%s", "delete", prefix, d->d_name); if(d->d_type == DT_DIR) { DIR *dir; struct dirent *dp; int len = strlen(prefix); strcat(prefix, "/"); strcat(prefix, d->d_name); dir = opendir(realname); while ((dp = readdir(dir)) != NULL) { if (!filter(dp)) continue; do_delete(dp); } prefix[len] = 0; } fprintf(stderr, "%s/%s was deleted\n", prefix, d->d_name); if(!t) return 0; ret = lstat(realname, &sb); th_set_from_stat(t, &sb); th_set_path(t, savename); th_set_size(t, 0); th_finish(t); if(t->options & TAR_VERBOSE) th_print_long_ls(t); th_write(t); }
static int do_diff(struct dirent *d1, struct dirent *d2) { int ret; struct stat sb; char realname1[PATH_MAX]; char realname2[PATH_MAX]; char savename[PATH_MAX]; //char cmd[4096]; fprintf(stderr, "%s/%s differs\n", prefix, d1->d_name); if(!t) return 0; sprintf(realname1, "%s%s/%s", base1, prefix, d1->d_name); sprintf(realname2, "%s%s/%s", base2, prefix, d2->d_name); sprintf(savename, "%s%s/%s", "diff", prefix, d1->d_name); //sprintf(cmd, "cp %s patch", realname2); //sprintf(cmd, "/home/stephan/rdiff %s %s patch", realname1, realname2); //sprintf(cmd, "/usr/bin/xdelta3 -e -s %s %s patch", realname1, realname2); //sprintf(cmd, "/usr/bin/xdelta3 -e -S djw -9 -s %s %s patch", realname1, realname2); //sprintf(cmd, "/usr/bin/bsdiff %s %s patch", realname1, realname2); //sprintf(cmd, "/home/stephan/src/fsdiff/bsdiff %s %s patch", realname1, realname2); //system(cmd); bsdiff(realname1, realname2, "patch"); ret = lstat(realname2, &sb); th_set_from_stat(t, &sb); th_set_path(t, savename); ret = lstat("patch", &sb); th_set_size(t, sb.st_size); th_finish(t); if(t->options & TAR_VERBOSE) th_print_long_ls(t); th_write(t); tar_append_regfile(t, "patch"); //system("rm patch"); unlink("patch"); }
int main(int argc, char **argv) { struct eub eub; struct eubfile file; int opt_P = 0; TAR *tarp; char buf[512]; libtar_hash_t *lthash = NULL; eub_init(&eub); ARGBEGIN { case 'P' : opt_P = 1; break; default : usage(); } ARGEND; if (argc == 0) usage(); if (eub_open(&eub, argv[0], "r")) return(eub.err); if (argc > 1) { lthash = libtar_hash_new(3, (libtar_hashfunc_t) hash_path); while (--argc) libtar_hash_add(lthash, ++argv); } if (tar_fdopen(&tarp, 1, "/dev/stdout", NULL, O_WRONLY, 0600, TAR_GNU) != 0) return(eub_err(&eub, errno, "Can't start tar output")); while (eub_read_meta(&eub, &file)) { unsigned long long len, remlen; struct libtar_node lp = { file.path, 0, 0 }; libtar_hashptr_t hp; hp.bucket = -1; hp.node = NULL; /* if (lthash && !libtar_hash_search(lthash, &hp, &lp, (libtar_matchfunc_t) compare_paths)) */ if (lthash && !libtar_hash_getkey(lthash, &hp, &lp, (libtar_matchfunc_t) compare_paths)) continue; if (eub_meta_to_stat(&eub, &file)) return(eub.err); th_set_from_stat(tarp, &file.stat); th_set_path(tarp, file.path); if (file.typechar == 'f') { /* XXX Hack! len = strlen(tarp->th_buf.name); if (tarp->th_buf.name[len-1] == '/') tarp->th_buf.name[len-1] = 0; */ if (eub_read_dataref(&eub, &file)) return(eub.err); } else if (file.typechar == 'l') { if (eub_read_dataref(&eub, &file)) return(eub.err); if (eub_seek_data(&eub, &file)) return(eub.err); if (eub_read_data(&eub, &file, eub.linkbuf, file.size)) return(eub_err(&eub, errno, "Can't read link: %s", file.path)); eub.linkbuf[file.size] = 0; th_set_link(tarp, eub.linkbuf); } th_finish(tarp); if (th_write(tarp)) return(eub_err(&eub, errno, "Can't write tar header for %s", file.path)); fflush(stdout); if (file.typechar == 'f') { if (eub_seek_data(&eub, &file)) return(eub.err); for (remlen = file.size; remlen; remlen -= len) { len = remlen < sizeof(buf) ? remlen : sizeof(buf); if (eub_read_data(&eub, &file, buf, len)) return(eub_err(&eub, errno, "Can't read file contents: %s", file.path)); if (len < sizeof(buf)) bzero(buf+len, sizeof(buf)-len); if (!tar_block_write(tarp, buf)) return(eub_err(&eub, errno, "Can't write to tar: %s", file.path)); fflush(stdout); } if (eub.err) return(eub.err); } } if (tar_append_eof(tarp)) return(eub_err(&eub, errno, "Can't finish tar")); fflush(stdout); return(eub.err); }
/* write a header block */ int th_write(TAR *t) { int i, j; char type2; size_t sz, sz2; char *ptr; char buf[T_BLOCKSIZE]; #ifdef DEBUG printf("==> th_write(TAR=\"%s\")\n", t->pathname); th_print(t); #endif if ((t->options & TAR_GNU) && t->th_buf.gnu_longlink != NULL) { #ifdef DEBUG printf("th_write(): using gnu_longlink (\"%s\")\n", t->th_buf.gnu_longlink); #endif /* save old size and type */ type2 = t->th_buf.typeflag; sz2 = th_get_size(t); /* write out initial header block with fake size and type */ t->th_buf.typeflag = GNU_LONGLINK_TYPE; sz = strlen(t->th_buf.gnu_longlink); th_set_size(t, sz); th_finish(t); i = tar_block_write(t, &(t->th_buf)); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } /* write out extra blocks containing long name */ for (j = (sz / T_BLOCKSIZE) + (sz % T_BLOCKSIZE ? 1 : 0), ptr = t->th_buf.gnu_longlink; j > 1; j--, ptr += T_BLOCKSIZE) { i = tar_block_write(t, ptr); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } } memset(buf, 0, T_BLOCKSIZE); strncpy(buf, ptr, T_BLOCKSIZE); i = tar_block_write(t, &buf); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } /* reset type and size to original values */ t->th_buf.typeflag = type2; th_set_size(t, sz2); } if ((t->options & TAR_GNU) && t->th_buf.gnu_longname != NULL) { #ifdef DEBUG printf("th_write(): using gnu_longname (\"%s\")\n", t->th_buf.gnu_longname); #endif /* save old size and type */ type2 = t->th_buf.typeflag; sz2 = th_get_size(t); /* write out initial header block with fake size and type */ t->th_buf.typeflag = GNU_LONGNAME_TYPE; sz = strlen(t->th_buf.gnu_longname); th_set_size(t, sz); th_finish(t); i = tar_block_write(t, &(t->th_buf)); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } /* write out extra blocks containing long name */ for (j = (sz / T_BLOCKSIZE) + (sz % T_BLOCKSIZE ? 1 : 0), ptr = t->th_buf.gnu_longname; j > 1; j--, ptr += T_BLOCKSIZE) { i = tar_block_write(t, ptr); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } } memset(buf, 0, T_BLOCKSIZE); strncpy(buf, ptr, T_BLOCKSIZE); i = tar_block_write(t, &buf); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } /* reset type and size to original values */ t->th_buf.typeflag = type2; th_set_size(t, sz2); } th_finish(t); #ifdef DEBUG /* print tar header */ th_print(t); #endif i = tar_block_write(t, &(t->th_buf)); if (i != T_BLOCKSIZE) { if (i != -1) errno = EINVAL; return -1; } #ifdef DEBUG puts("th_write(): returning 0"); #endif return 0; }