From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 21 Oct 2025 15:52:26 +0000 (+0000)
Subject: file: Return the error code if we could not read the file
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a77a0e1b164b04252af3702fd8300daeb063996e;p=telemetry.git

file: Return the error code if we could not read the file

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

diff --git a/src/daemon/file.c b/src/daemon/file.c
index 4780e73..514ba02 100644
--- a/src/daemon/file.c
+++ b/src/daemon/file.c
@@ -179,11 +179,15 @@ int td_file_walk(td_file* self,
 		// Fetch the next line
 		r = getline(&line, &length, self->f);
 		if (r < 0) {
-			// Reset r if have reached the end of the file
+			// Break if we have reached the end of the line
 			if (feof(self->f))
-				r = 0;
+				break;
+
+			// Handle errors
+			if (ferror(self->f))
+				r = -errno;
 
-			break;
+			goto ERROR;
 		}
 
 		// Remove the trailing newline
@@ -198,6 +202,9 @@ int td_file_walk(td_file* self,
 			goto ERROR;
 	}
 
+	// Success
+	r = 0;
+
 ERROR:
 	if (line)
 		free(line);