X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/c9b62cf375f393de076d0fc7a3c2748d581c54a2..cc911409d6561d66094c2303e9a79b41ea4f2ef5:/hlink.c

diff --git a/hlink.c b/hlink.c
index 536b571f..1e8adc86 100644
--- a/hlink.c
+++ b/hlink.c
@@ -37,7 +37,7 @@ extern int stdout_format_has_i;
 extern int maybe_ATTRS_REPORT;
 extern int unsort_ndx;
 extern char *basis_dir[];
-extern struct file_list *cur_flist;
+extern struct file_list *cur_flist, *first_flist;
 
 #ifdef SUPPORT_HARD_LINKS
 
@@ -249,17 +249,13 @@ static char *check_prior(struct file_struct *file, int gnum,
 			 int *prev_ndx_p, struct file_list **flist_p)
 {
 	struct file_struct *fp;
-	struct file_list *flist;
 	struct ht_int32_node *node;
 	int prev_ndx = F_HL_PREV(file);
 
 	while (1) {
-		if (prev_ndx < 0) {
-			*prev_ndx_p = prev_ndx;
-			*flist_p = NULL;
-			return NULL;
-		}
-		if ((flist = flist_for_ndx(prev_ndx)) == NULL)
+		struct file_list *flist;
+		if (prev_ndx < 0
+		 || (flist = flist_for_ndx(prev_ndx)) == NULL)
 			break;
 		fp = flist->files[prev_ndx - flist->ndx_start];
 		if (!(fp->flags & FLAG_SKIP_HLINK)) {
@@ -270,20 +266,21 @@ static char *check_prior(struct file_struct *file, int gnum,
 		F_HL_PREV(file) = prev_ndx = F_HL_PREV(fp);
 	}
 
-	node = hashtable_find(prior_hlinks, gnum, 0);
-	assert(node != NULL && node->data);
-
-	if (CVAL(node->data, 0) == 0) {
+	if (inc_recurse
+	 && (node = hashtable_find(prior_hlinks, gnum, 0)) != NULL) {
+		assert(node->data != NULL);
+		if (CVAL(node->data, 0) != 0) {
+			*prev_ndx_p = -1;
+			*flist_p = NULL;
+			return node->data;
+		}
 		/* The prior file must have been skipped. */
-		F_HL_PREV(file) = prev_ndx = -1;
-		*prev_ndx_p = prev_ndx;
-		*flist_p = NULL;
-		return NULL;
+		F_HL_PREV(file) = -1;
 	}
 
-	*prev_ndx_p = prev_ndx;
-	*flist_p = flist;
-	return node->data;
+	*prev_ndx_p = -1;
+	*flist_p = NULL;
+	return NULL;
 }
 
 /* Only called if FLAG_HLINKED is set and FLAG_HLINK_FIRST is not.  Returns:
@@ -450,7 +447,7 @@ void finish_hard_link(struct file_struct *file, const char *fname, int fin_ndx,
 {
 	stat_x prev_sx;
 	STRUCT_STAT st;
-	char alt_name[MAXPATHLEN], *prev_name;
+	char prev_name[MAXPATHLEN], alt_name[MAXPATHLEN];
 	const char *our_name;
 	struct file_list *flist;
 	int prev_statret, ndx, prev_ndx = F_HL_PREV(file);
@@ -481,13 +478,20 @@ void finish_hard_link(struct file_struct *file, const char *fname, int fin_ndx,
 	while ((ndx = prev_ndx) >= 0) {
 		int val;
 		flist = flist_for_ndx(ndx);
-		assert(flist != NULL);
+		if (flist == NULL) {
+			int start1 = first_flist ? first_flist->ndx_start : 0;
+			int start2 = first_flist ? first_flist->prev->ndx_start : 0;
+			int used = first_flist ? first_flist->prev->used : 0;
+			rprintf(FERROR,
+				"File index not found: %d (%d - %d)\n",
+				ndx, start1 - 1, start2 + used - 1);
+			exit_cleanup(RERR_PROTOCOL);
+		}
 		file = flist->files[ndx - flist->ndx_start];
 		file->flags = (file->flags & ~FLAG_HLINK_FIRST) | FLAG_HLINK_DONE;
 		prev_ndx = F_HL_PREV(file);
 		F_HL_PREV(file) = fin_ndx;
-		prev_name = f_name(file, NULL);
-		prev_statret = link_stat(prev_name, &prev_sx.st, 0);
+		prev_statret = link_stat(f_name(file, prev_name), &prev_sx.st, 0);
 		val = maybe_hard_link(file, ndx, prev_name, prev_statret, &prev_sx,
 				      our_name, stp, fname, itemizing, code);
 		flist->in_progress--;