X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/ea124cb324be2dffb97fe44fa534b24a3060479d..fdd10da6f7995296f6bb5ee3dd7231d6dbc20b5e:/flist.c

diff --git a/flist.c b/flist.c
index ad859bc4..08a75b26 100644
--- a/flist.c
+++ b/flist.c
@@ -172,7 +172,7 @@ static int readlink_stat(const char *path, STRUCT_STAT *stp, char *linkbuf)
 				rprintf(FINFO,"copying unsafe symlink \"%s\" -> \"%s\"\n",
 					path, linkbuf);
 			}
-			return safe_stat(path, stp);
+			return do_stat(path, stp);
 		}
 	}
 	return 0;
@@ -185,12 +185,12 @@ int link_stat(const char *path, STRUCT_STAT *stp, int follow_dirlinks)
 {
 #ifdef SUPPORT_LINKS
 	if (copy_links)
-		return safe_stat(path, stp);
+		return do_stat(path, stp);
 	if (do_lstat(path, stp) < 0)
 		return -1;
 	if (follow_dirlinks && S_ISLNK(stp->st_mode)) {
 		STRUCT_STAT st;
-		if (safe_stat(path, &st) == 0 && S_ISDIR(st.st_mode))
+		if (do_stat(path, &st) == 0 && S_ISDIR(st.st_mode))
 			*stp = st;
 	}
 	return 0;
@@ -233,17 +233,21 @@ static int is_excluded(char *fname, int is_dir, int filter_level)
 static int to_wire_mode(mode_t mode)
 {
 #ifdef SUPPORT_LINKS
-	if (S_ISLNK(mode) && (_S_IFLNK != 0120000))
+#if _S_IFLNK != 0120000
+	if (S_ISLNK(mode))
 		return (mode & ~(_S_IFMT)) | 0120000;
 #endif
-	return (int)mode;
+#endif
+	return mode;
 }
 
 static mode_t from_wire_mode(int mode)
 {
-	if ((mode & (_S_IFMT)) == 0120000 && (_S_IFLNK != 0120000))
+#if _S_IFLNK != 0120000
+	if ((mode & (_S_IFMT)) == 0120000)
 		return (mode & ~(_S_IFMT)) | _S_IFLNK;
-	return (mode_t)mode;
+#endif
+	return mode;
 }
 
 static void send_directory(int f, struct file_list *flist,
@@ -314,7 +318,7 @@ static void send_file_entry(struct file_struct *file, int f)
 	if (!file) {
 		write_byte(f, 0);
 		modtime = 0, mode = 0;
-		dev = 0, rdev = makedev(0, 0);
+		dev = 0, rdev = MAKEDEV(0, 0);
 		rdev_major = 0;
 		uid = 0, gid = 0;
 		*lastname = '\0';
@@ -346,7 +350,7 @@ static void send_file_entry(struct file_struct *file, int f)
 				flags |= XMIT_RDEV_MINOR_IS_SMALL;
 		}
 	} else if (protocol_version < 28)
-		rdev = makedev(0, 0);
+		rdev = MAKEDEV(0, 0);
 	if (file->uid == uid)
 		flags |= XMIT_SAME_UID;
 	else
@@ -446,7 +450,7 @@ static void send_file_entry(struct file_struct *file, int f)
 #endif
 
 #ifdef SUPPORT_HARD_LINKS
-	if (flags & XMIT_HAS_IDEV_DATA) {
+	if (file->link_u.idev) {
 		if (protocol_version < 26) {
 			/* 32-bit dev_t and ino_t */
 			write_int(f, dev);
@@ -497,7 +501,7 @@ static struct file_struct *receive_file_entry(struct file_list *flist,
 
 	if (!flist) {
 		modtime = 0, mode = 0;
-		dev = 0, rdev = makedev(0, 0);
+		dev = 0, rdev = MAKEDEV(0, 0);
 		rdev_major = 0;
 		uid = 0, gid = 0;
 		*lastname = '\0';
@@ -574,10 +578,10 @@ static struct file_struct *receive_file_entry(struct file_list *flist,
 				rdev_minor = read_byte(f);
 			else
 				rdev_minor = read_int(f);
-			rdev = makedev(rdev_major, rdev_minor);
+			rdev = MAKEDEV(rdev_major, rdev_minor);
 		}
 	} else if (protocol_version < 28)
-		rdev = makedev(0, 0);
+		rdev = MAKEDEV(0, 0);
 
 #ifdef SUPPORT_LINKS
 	if (preserve_links && S_ISLNK(mode)) {
@@ -655,6 +659,8 @@ static struct file_struct *receive_file_entry(struct file_list *flist,
 	if (linkname_len) {
 		file->u.link = bp;
 		read_sbuf(f, bp, linkname_len - 1);
+		if (sanitize_paths)
+			sanitize_path(bp, bp, "", lastdir_depth, NULL);
 		bp += linkname_len;
 	}
 #endif
@@ -739,9 +745,10 @@ struct file_struct *make_file(char *fname, struct file_list *flist,
 
 	memset(sum, 0, SUM_LENGTH);
 
-	if (stp && S_ISDIR(stp->st_mode))
+	if (stp && S_ISDIR(stp->st_mode)) {
 		st = *stp; /* Needed for "symlink/." with --relative. */
-	else if (readlink_stat(thisname, &st, linkname) != 0) {
+		*linkname = '\0'; /* make IBM code checker happy */
+	} else if (readlink_stat(thisname, &st, linkname) != 0) {
 		int save_errno = errno;
 		/* See if file is excluded before reporting an error. */
 		if (filter_level != NO_FILTERS
@@ -920,7 +927,7 @@ struct file_struct *make_file(char *fname, struct file_list *flist,
 		int save_mode = file->mode;
 		file->mode = S_IFDIR; /* Find a directory with our name. */
 		if (flist_find(the_file_list, file) >= 0
-		    && safe_stat(thisname, &st2) == 0 && S_ISDIR(st2.st_mode)) {
+		    && do_stat(thisname, &st2) == 0 && S_ISDIR(st2.st_mode)) {
 			file->modtime = st2.st_mtime;
 			file->length = st2.st_size;
 			file->mode = st2.st_mode;
@@ -1069,9 +1076,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 
 	io_start_buffering_out();
 	if (filesfrom_fd >= 0) {
-		if (sanitize_paths)
-			die_on_unsafe_path(argv[0], 0);
-		if (argv[0] && !push_dir(argv[0])) {
+		if (argv[0] && !push_dir(argv[0], 0)) {
 			rsyserr(FERROR, errno, "push_dir %s failed",
 				full_fname(argv[0]));
 			exit_cleanup(RERR_FILESELECT);
@@ -1124,8 +1129,6 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 				   && (len == 1 || fbuf[len-2] == '/');
 		}
 
-		if (sanitize_paths)
-			die_on_unsafe_path(fbuf, 1);
 		if (link_stat(fbuf, &st, copy_dirlinks) != 0) {
 			io_error |= IOERR_GENERAL;
 			rsyserr(FERROR, errno, "link_stat %s failed",
@@ -1183,6 +1186,8 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 				} else
 					break;
 			}
+			if (len == 1 && fn[0] == '/')
+				fn[len++] = '.';
 			fn[len] = '\0';
 			/* Reject a ".." dir in the active part of the path. */
 			for (p = fn; (p = strstr(p, "..")) != NULL; p += 2) {
@@ -1207,7 +1212,7 @@ struct file_list *send_file_list(int f, int argc, char *argv[])
 
 			strlcpy(olddir, curr_dir, sizeof olddir);
 
-			if (!push_dir(dir)) {
+			if (!push_dir(dir, 0)) {
 				io_error |= IOERR_GENERAL;
 				rsyserr(FERROR, errno, "push_dir %s failed",
 					full_fname(dir));
@@ -1692,15 +1697,15 @@ static void output_flist(struct file_list *flist)
 	for (i = 0; i < flist->count; i++) {
 		file = flist->files[i];
 		if ((am_root || am_sender) && preserve_uid)
-			sprintf(uidbuf, " uid=%ld", (long)file->uid);
+			snprintf(uidbuf, sizeof uidbuf, " uid=%ld", (long)file->uid);
 		else
 			*uidbuf = '\0';
 		if (preserve_gid && file->gid != GID_NONE)
-			sprintf(gidbuf, " gid=%ld", (long)file->gid);
+			snprintf(gidbuf, sizeof gidbuf, " gid=%ld", (long)file->gid);
 		else
 			*gidbuf = '\0';
 		if (!am_sender)
-			sprintf(depthbuf, "%d", file->dir.depth);
+			snprintf(depthbuf, sizeof depthbuf, "%d", file->dir.depth);
 		rprintf(FINFO, "[%s] i=%d %s %s%s%s%s mode=0%o len=%.0f%s%s flags=%x\n",
 			who, i, am_sender ? NS(file->dir.root) : depthbuf,
 			file->dirname ? file->dirname : "",
@@ -1757,10 +1762,6 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
 			c1 = (uchar*)"";
 		} else
 			state1 = s_BASE;
-	} else if (!*c1) {
-		type1 = t_path;
-		state1 = s_SLASH;
-		c1 = (uchar*)"/";
 	} else {
 		type1 = t_path;
 		state1 = s_DIR;
@@ -1774,10 +1775,6 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
 			c2 = (uchar*)"";
 		} else
 			state2 = s_BASE;
-	} else if (!*c2) {
-		type2 = t_path;
-		state2 = s_SLASH;
-		c2 = (uchar*)"/";
 	} else {
 		type2 = t_path;
 		state2 = s_DIR;
@@ -1786,9 +1783,7 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
 	if (type1 != type2)
 		return type1 == t_PATH ? 1 : -1;
 
-	while (1) {
-		if ((dif = (int)*c1++ - (int)*c2++) != 0)
-			break;
+	do {
 		if (!*c1) {
 			switch (state1) {
 			case s_DIR:
@@ -1851,7 +1846,7 @@ int f_name_cmp(struct file_struct *f1, struct file_struct *f2)
 			if (type1 != type2)
 				return type1 == t_PATH ? 1 : -1;
 		}
-	}
+	} while ((dif = (int)*c1++ - (int)*c2++) == 0);
 
 	return dif;
 }
@@ -1878,9 +1873,9 @@ char *f_name(struct file_struct *f, char *fbuf)
 		int len = strlen(f->dirname);
 		memcpy(fbuf, f->dirname, len);
 		fbuf[len] = '/';
-		strcpy(fbuf + len + 1, f->basename);
+		strlcpy(fbuf + len + 1, f->basename, MAXPATHLEN - (len + 1));
 	} else
-		strcpy(fbuf, f->basename);
+		strlcpy(fbuf, f->basename, MAXPATHLEN);
 
 	return fbuf;
 }