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cmdStartGetFDs: Modernize

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Calculate the length of the FD list beforehand to avoid multiple
expansions and mainly simplify the code and use automatic freeing to
remove the error code path.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2022-01-27 17:14:32 +01:00
parent c98432784a
commit b0015df263
1 changed files with 8 additions and 12 deletions
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20
tools/virsh-domain.c
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@ -4025,7 +4025,7 @@ cmdStartGetFDs(vshControl *ctl,
{
const char *fdopt;
g_auto(GStrv) fdlist = NULL;
int *fds = NULL;
g_autofree int *fds = NULL;
size_t nfds = 0;
size_t i;
@ -4040,23 +4040,19 @@ cmdStartGetFDs(vshControl *ctl,
return -1;
}
for (i = 0; fdlist[i] != NULL; i++) {
int fd;
if (virStrToLong_i(fdlist[i], NULL, 10, &fd) < 0) {
nfds = g_strv_length(fdlist);
fds = g_new0(int, nfds);
for (i = 0; i < nfds; i++) {
if (virStrToLong_i(fdlist[i], NULL, 10, fds + i) < 0) {
vshError(ctl, _("Unable to parse FD number '%s'"), fdlist[i]);
goto error;
return -1;
}
VIR_EXPAND_N(fds, nfds, 1);
fds[nfds - 1] = fd;
}
*fdsret = fds;
*fdsret = g_steal_pointer(&fds);
*nfdsret = nfds;
return 0;
error:
VIR_FREE(fds);
return -1;
}
static bool