From 6b09c55d892e31a633075279bf9c1446b69d139e Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sun, 30 Apr 2023 03:09:02 -0400
Subject: dirent: Don't add leading "/"

---
(limited to 'src')

diff --git a/src/dirent.c b/src/dirent.c
index 7783120..eb92a2b 100644
--- a/src/dirent.c
+++ b/src/dirent.c
@@ -30,13 +30,19 @@ _opkg_opk_dirent_name_prefix(struct opkg_opk_dirent *dirent, char **name_buf,
 	size_t   len;
 	char   **buf;
 
-	len = strlen(dirent->name) + 1;
+	len = strlen(dirent->name);
 	if (*name_len + len <= *name_buf_len) {
-		*name_buf_len -= len;
 		buf = name_buf;
+		if (**buf != '\0') {
+			++len;
+		}
+		*name_buf_len -= len;
 	} else if (*pref_len + len <= *pref_buf_len) {
-		*pref_buf_len -= len;
 		buf = pref_buf;
+		if (**buf != '\0') {
+			++len;
+		}
+		*pref_buf_len -= len;
 	} else {
 		return OPKG_OPK_ERROR;
 	}
@@ -48,10 +54,13 @@ _opkg_opk_dirent_name_prefix(struct opkg_opk_dirent *dirent, char **name_buf,
 		return OPKG_OPK_ERROR;
 	}
 
-	**buf = '/';
-	*buf += 1;
-	memcpy(*buf, dirent->name, len - 1);
-	*buf += len - 1;
+	if (**buf != '\0') {
+		**buf = '/';
+		*buf += 1;
+		--len;
+	}
+	memcpy(*buf, dirent->name, len);
+	*buf += len;
 
 	return OPKG_OPK_OK;
 }
@@ -63,6 +72,8 @@ opkg_opk_dirent_name_prefix(struct opkg_opk_dirent *dirent, char *name_buf,
 	size_t name_len = 0;
 	size_t pref_len = 0;
 
+	name_buf[0] = '\0';
+	pref_buf[0] = '\0';
 	if (_opkg_opk_dirent_name_prefix(dirent, &name_buf, &name_buf_len,
 				&pref_buf, &pref_buf_len, &name_len, &pref_len)
 			== OPKG_OPK_ERROR) {
@@ -80,7 +91,10 @@ _opkg_opk_dirent_full_name(struct opkg_opk_dirent *dirent, char **cur,
 	size_t  len;
 	char   *buf;
 
-	len = strlen(dirent->name) + 1;
+	len = strlen(dirent->name);
+	if (dirent->parent != NULL) {
+		++len;
+	}
 	*buf_len += len;
 
 	if (dirent->parent == NULL) {
@@ -94,10 +108,13 @@ _opkg_opk_dirent_full_name(struct opkg_opk_dirent *dirent, char **cur,
 		return NULL;
 	}
 
-	**cur = '/';
-	*cur += 1;
-	memcpy(*cur, dirent->name, len - 1);
-	*cur += len - 1;
+	if (dirent->parent != NULL) {
+		**cur = '/';
+		*cur += 1;
+		--len;
+	}
+	memcpy(*cur, dirent->name, len);
+	*cur += len;
 
 	return buf;
 }
--
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