use correct logging or error calls

ftruncate sets errno, so use fatal() and not fatalx().

Checking for under-reads of read(2) isn't going to set errno so
use errx().

ok abieber@

diff --git a/usr.sbin/vmd/vioqcow2.c b/usr.sbin/vmd/vioqcow2.c
index 08c6b02..3880543 100644 (file)
--- a/usr.sbin/vmd/vioqcow2.c
+++ b/usr.sbin/vmd/vioqcow2.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: vioqcow2.c,v 1.19 2022/05/13 16:46:34 dv Exp $        */
+/*     $OpenBSD: vioqcow2.c,v 1.20 2022/05/20 22:06:47 dv Exp $        */
 
 /*
  * Copyright (c) 2018 Ori Bernstein <ori@eigenstate.org>
@@ -533,7 +533,7 @@ mkcluster(struct qcdisk *disk, struct qcdisk *base, off_t off, off_t src_phys)
 
        /* Grow the disk */
        if (ftruncate(disk->fd, disk->end + disk->clustersz) < 0)
-               fatalx("%s: could not grow disk", __func__);
+               fatal("%s: could not grow disk", __func__);
        if (src_phys > 0)
                copy_cluster(disk, base, disk->end, src_phys);
        cluster = disk->end;
@@ -640,7 +640,7 @@ virtio_qcow2_create(const char *imgfile_path,
        if (base_path) {
                fd = open(base_path, O_RDONLY);
                if (read(fd, &basehdr, sizeof(basehdr)) != sizeof(basehdr))
-                       err(1, "failure to read base image header");
+                       errx(1, "failure to read base image header");
                close(fd);
                if (strncmp(basehdr.magic,
                    VM_MAGIC_QCOW, strlen(VM_MAGIC_QCOW)) != 0)