From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sat, 2 Dec 2023 12:36:19 +0000 (+0000)
Subject: util: Create a function to create relative symlinks
X-Git-Tag: 0.9.30~1294
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c98867a2bf994dc0736e6774868a642607e69a7a;p=pakfire.git

util: Create a function to create relative symlinks

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/include/pakfire/util.h b/src/libpakfire/include/pakfire/util.h
index 2fea79211..ff552ed92 100644
--- a/src/libpakfire/include/pakfire/util.h
+++ b/src/libpakfire/include/pakfire/util.h
@@ -69,6 +69,7 @@ int pakfire_mkparentdir(const char* path, mode_t mode);
 int pakfire_mkdir(const char* path, mode_t mode);
 FILE* pakfire_mktemp(char* path, const mode_t mode);
 char* pakfire_mkdtemp(char* path);
+int pakfire_symlink(struct pakfire_ctx* ctx, const char* target, const char* linkpath);
 int pakfire_rmtree(const char* path, int flags);
 
 #define pakfire_which(pakfire, path, what) \
diff --git a/src/libpakfire/util.c b/src/libpakfire/util.c
index 2f0c8ef88..6bb22195a 100644
--- a/src/libpakfire/util.c
+++ b/src/libpakfire/util.c
@@ -550,6 +550,32 @@ char* pakfire_mkdtemp(char* path) {
 	return mkdtemp(path);
 }
 
+int pakfire_symlink(struct pakfire_ctx* ctx, const char* target, const char* linkpath) {
+	char path[PATH_MAX];
+	int r;
+
+	// Find the dirname of the target
+	r = pakfire_path_dirname(path, target);
+	if (r)
+		return r;
+
+	// Make the symlink relative
+	r = pakfire_path_relative(path, path, linkpath);
+	if (r)
+		return r;
+
+	CTX_DEBUG(ctx, "Creating symlink %s -> %s (%s)\n", target, linkpath, path);
+
+	// Create the symlink
+	r = symlink(target, path);
+	if (r) {
+		CTX_ERROR(ctx, "Could not create symlink %s (%s)\n", target, path);
+		return r;
+	}
+
+	return 0;
+}
+
 static int _unlink(const char* path, const struct stat* stat,
 		const int type, struct FTW* ftwbuf) {
 	// Delete directories using rmdir()