X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/adc4ebdd76cf98aacbe87b9664dd291199294297..f1ca7c4429f2a8e9de72f91d95218bb324df6a9e:/util.c

diff --git a/util.c b/util.c
index 2afb63ec..c4375175 100644
--- a/util.c
+++ b/util.c
@@ -275,38 +275,54 @@ int copy_file(const char *source, const char *dest, int ofd,
 	int len;   /* Number of bytes read into `buf'. */
 
 	if ((ifd = do_open(source, O_RDONLY, 0)) < 0) {
+		int save_errno = errno;
 		rsyserr(FERROR_XFER, errno, "open %s", full_fname(source));
+		errno = save_errno;
 		return -1;
 	}
 
 	if (ofd < 0) {
 		if (robust_unlink(dest) && errno != ENOENT) {
+			int save_errno = errno;
 			rsyserr(FERROR_XFER, errno, "unlink %s", full_fname(dest));
+			errno = save_errno;
 			return -1;
 		}
 
-		if ((ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode)) < 0
-		 && (!create_bak_dir || errno != ENOENT || make_bak_dir(dest) < 0
-		  || (ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode)) < 0)) {
-			rsyserr(FERROR_XFER, errno, "open %s", full_fname(dest));
-			close(ifd);
-			return -1;
+		if ((ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode)) < 0) {
+			int save_errno = errno ? errno : EINVAL; /* 0 paranoia */
+			if (create_bak_dir && errno == ENOENT && make_bak_dir(dest) == 0) {
+				if ((ofd = do_open(dest, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL, mode)) < 0)
+					save_errno = errno ? errno : save_errno;
+				else
+					save_errno = 0;
+			}
+			if (save_errno) {
+				rsyserr(FERROR_XFER, save_errno, "open %s", full_fname(dest));
+				close(ifd);
+				errno = save_errno;
+				return -1;
+			}
 		}
 	}
 
 	while ((len = safe_read(ifd, buf, sizeof buf)) > 0) {
 		if (full_write(ofd, buf, len) < 0) {
+			int save_errno = errno;
 			rsyserr(FERROR_XFER, errno, "write %s", full_fname(dest));
 			close(ifd);
 			close(ofd);
+			errno = save_errno;
 			return -1;
 		}
 	}
 
 	if (len < 0) {
+		int save_errno = errno;
 		rsyserr(FERROR_XFER, errno, "read %s", full_fname(source));
 		close(ifd);
 		close(ofd);
+		errno = save_errno;
 		return -1;
 	}
 
@@ -316,8 +332,10 @@ int copy_file(const char *source, const char *dest, int ofd,
 	}
 
 	if (close(ofd) < 0) {
+		int save_errno = errno;
 		rsyserr(FERROR_XFER, errno, "close failed on %s",
 			full_fname(dest));
+		errno = save_errno;
 		return -1;
 	}
 
@@ -401,8 +419,11 @@ int robust_rename(const char *from, const char *to, const char *partialptr,
 		switch (errno) {
 #ifdef ETXTBSY
 		case ETXTBSY:
-			if (robust_unlink(to) != 0)
+			if (robust_unlink(to) != 0) {
+				errno = ETXTBSY;
 				return -1;
+			}
+			errno = ETXTBSY;
 			break;
 #endif
 		case EXDEV: