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storage-daemon: include current command line option in the errors

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Use the location management facilities that the emulator uses, so that
the current command line option appears in the error message.

Before:

  $ storage-daemon/qemu-storage-daemon --nbd key..=
  qemu-storage-daemon: Invalid parameter 'key..'

After:

  $ storage-daemon/qemu-storage-daemon --nbd key..=
  qemu-storage-daemon: --nbd key..=: Invalid parameter 'key..'

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210301152844.291799-3-pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-03-01 10:28:44 -05:00 committed by Kevin Wolf
parent a5ef35052e
commit 501a4b3681
1 changed files with 17 additions and 2 deletions
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19
storage-daemon/qemu-storage-daemon.c
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@ -152,6 +152,20 @@ static void init_qmp_commands(void)
qmp_marshal_qmp_capabilities, QCO_ALLOW_PRECONFIG);
}
static int getopt_set_loc(int argc, char **argv, const char *optstring,
const struct option *longopts)
{
int c, save_index;
optarg = NULL;
save_index = optind;
c = getopt_long(argc, argv, optstring, longopts, NULL);
if (optarg) {
loc_set_cmdline(argv, save_index, MAX(1, optind - save_index));
}
return c;
}
static void process_options(int argc, char *argv[])
{
int c;
@ -174,7 +188,7 @@ static void process_options(int argc, char *argv[])
* they are given on the command lines. This means that things must be
* defined first before they can be referenced in another option.
*/
while ((c = getopt_long(argc, argv, "-hT:V", long_options, NULL)) != -1) {
while ((c = getopt_set_loc(argc, argv, "-hT:V", long_options)) != -1) {
switch (c) {
case '?':
exit(EXIT_FAILURE);
@ -276,12 +290,13 @@ static void process_options(int argc, char *argv[])
break;
}
case 1:
error_report("Unexpected argument: %s", optarg);
error_report("Unexpected argument");
exit(EXIT_FAILURE);
default:
g_assert_not_reached();
}
}
loc_set_none();
}
int main(int argc, char *argv[])