Format error messages properly

Make use of strerror(errno) and format all errors equally:
function ['parameters']: error message

1 files changed, 6 insertions, 4 deletions

diff --git a/components/disk.c b/components/disk.c
index 3d8140e..8a9caa1 100644
--- a/components/disk.c
+++ b/components/disk.c
@@ -1,5 +1,7 @@
 /* See LICENSE file for copyright and license details. */
+#include <errno.h>
 #include <stdio.h>
+#include <string.h>
 #include <sys/statvfs.h>
 
 #include "../util.h"
@@ -10,7 +12,7 @@ disk_free(const char *mnt)
 	struct statvfs fs;
 
 	if (statvfs(mnt, &fs) < 0) {
-		fprintf(stderr, "Failed to get filesystem info");
+		fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
 		return NULL;
 	}
 
@@ -24,7 +26,7 @@ disk_perc(const char *mnt)
 	struct statvfs fs;
 
 	if (statvfs(mnt, &fs) < 0) {
-		fprintf(stderr, "Failed to get filesystem info");
+		fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
 		return NULL;
 	}
 
@@ -39,7 +41,7 @@ disk_total(const char *mnt)
 	struct statvfs fs;
 
 	if (statvfs(mnt, &fs) < 0) {
-		fprintf(stderr, "Failed to get filesystem info");
+		fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
 		return NULL;
 	}
 
@@ -52,7 +54,7 @@ disk_used(const char *mnt)
 	struct statvfs fs;
 
 	if (statvfs(mnt, &fs) < 0) {
-		fprintf(stderr, "Failed to get filesystem info");
+		fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
 		return NULL;
 	}