The branch main has been updated by novel:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=148111d3775eb159d71a36e3a8b4c5c1bf53392c

commit 148111d3775eb159d71a36e3a8b4c5c1bf53392c
Author:     Roman Bogorodskiy <[email protected]>
AuthorDate: 2025-12-05 18:45:03 +0000
Commit:     Roman Bogorodskiy <[email protected]>
CommitDate: 2025-12-13 09:27:00 +0000

    bhyvectl: improve options error handling
    
    Currently, it is possible to execute bhyvectl(8) with mutually exclusive
    options, such as "--destroy" and "--suspend", and it will print out
    obscure errors, e.g.:
    
     bhyvectl --suspend=/var/run/vms/my_vm --destroy --vm my_vm
     connect() failed: Connection refused
    
    Address that by failing early if mutually exclusive options were
    specified.
    
    Additionally, move the BHYVE_SNAPSHOT block before the errors are
    printed, so its errors are also displayed.
    
    Approved by:            markj
    Sponsored by:           The FreeBSD Foundation
    MFC after:              2 weeks
    Differential Revision:  https://reviews.freebsd.org/D54092
---
 usr.sbin/bhyvectl/bhyvectl.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/usr.sbin/bhyvectl/bhyvectl.c b/usr.sbin/bhyvectl/bhyvectl.c
index 41055678ac30..9e845ac6b531 100644
--- a/usr.sbin/bhyvectl/bhyvectl.c
+++ b/usr.sbin/bhyvectl/bhyvectl.c
@@ -326,7 +326,7 @@ int
 main(int argc, char *argv[])
 {
        char *vmname;
-       int error, ch, vcpuid;
+       int action_opts, error, ch, vcpuid;
        struct vm_run vmrun;
        struct vmctx *ctx;
        struct vcpu *vcpu;
@@ -338,6 +338,7 @@ main(int argc, char *argv[])
 
        opts = setup_options();
 
+       action_opts = 0;
        vcpuid = 0;
        vmname = NULL;
        progname = basename(argv[0]);
@@ -388,6 +389,14 @@ main(int argc, char *argv[])
        if (vmname == NULL)
                usage(opts);
 
+       action_opts = create + destroy + force_reset + force_poweroff;
+       if (checkpoint_file)
+               action_opts++;
+
+       if (action_opts > 1) {
+               fprintf(stderr, "mutually exclusive actions specified\n");
+               exit(1);
+       }
 
        ctx = vm_openf(vmname, create ? VMMAPI_OPEN_CREATE : 0);
        if (ctx == NULL) {
@@ -508,17 +517,17 @@ main(int argc, char *argv[])
        if (!error && force_poweroff)
                error = vm_suspend(ctx, VM_SUSPEND_POWEROFF);
 
+#ifdef BHYVE_SNAPSHOT
+       if (!error && checkpoint_file)
+               error = snapshot_request(vmname, checkpoint_file, 
vm_suspend_opt);
+#endif
+
        if (error)
                printf("errno = %d\n", errno);
 
        if (!error && destroy)
                vm_destroy(ctx);
 
-#ifdef BHYVE_SNAPSHOT
-       if (!error && checkpoint_file)
-               error = snapshot_request(vmname, checkpoint_file, 
vm_suspend_opt);
-#endif
-
        free(opts);
        exit(error);
 }

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