[Qemu-devel] Re: [PATCH 3/3] net: fix error reporting for some net parameter checks

[Jan Kiszka <jan.kiszka@siemens.com>]

Mark McLoughlin wrote:
> A small bit of confusion between buffers is causing errors like:
> 
>   qemu: invalid parameter '10' in 'script=/etc/qemu-ifup,fd=10'
> 
> instead of:
> 
>   qemu: invalid parameter 'script' in 'script=/etc/qemu-ifup,fd=10'
> 
> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
> ---
>  net.c |   12 ++++++------
>  1 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/net.c b/net.c
> index 723e934..2594ed7 100644
> --- a/net.c
> +++ b/net.c
> @@ -2036,7 +2036,7 @@ int net_client_init(const char *device, const char *p)
>          if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
>              if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
>                  fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
> -                        buf, p);
> +                        chkbuf, p);
>                  return -1;
>              }
>              fd = strtol(buf, NULL, 0);
> @@ -2049,7 +2049,7 @@ int net_client_init(const char *device, const char *p)
>              };
>              if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
>                  fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
> -                        buf, p);
> +                        chkbuf, p);
>                  return -1;
>              }
>              if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
> @@ -2071,7 +2071,7 @@ int net_client_init(const char *device, const char *p)
>              int fd;
>              if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
>                  fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
> -                        buf, p);
> +                        chkbuf, p);
>                  return -1;
>              }
>              fd = strtol(buf, NULL, 0);
> @@ -2084,7 +2084,7 @@ int net_client_init(const char *device, const char *p)
>              };
>              if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
>                  fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
> -                        buf, p);
> +                        chkbuf, p);
>                  return -1;
>              }
>              ret = net_socket_listen_init(vlan, device, name, buf);
> @@ -2094,7 +2094,7 @@ int net_client_init(const char *device, const char *p)
>              };
>              if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
>                  fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
> -                        buf, p);
> +                        chkbuf, p);
>                  return -1;
>              }
>              ret = net_socket_connect_init(vlan, device, name, buf);
> @@ -2104,7 +2104,7 @@ int net_client_init(const char *device, const char *p)
>              };
>              if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
>                  fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
> -                        buf, p);
> +                        chkbuf, p);
>                  return -1;
>              }
>              ret = net_socket_mcast_init(vlan, device, name, buf);

Ack for all three.

(My dear. I promise to never touch these param checks again.)

Jan

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