tools: fix regression passing command with virt-login-shell

It is documented that a command to run inside the container can be
passed with the -c arg.

  virt-login-shell -c "ls -l /"

This fixes

  commit 4feeb2d986b98013ebfb1d41ab6b9007b6cce6e2
  Author: Daniel P. Berrangé <berrange@redhat.com>
  Date:   Thu Aug 1 10:58:31 2019 +0100

    tools: split virt-login-shell into two binaries

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2019-09-27 17:18:24 +01:00
parent 0ad9f12e75
commit f4e1ef9d39
2 changed files with 18 additions and 9 deletions

2
cfg.mk
View File

@ -1353,4 +1353,4 @@ exclude_file_name_regexp--sc_prohibit_dirent_d_type = \
^(src/util/vircgroup.c)$
exclude_file_name_regexp--sc_prohibit_strcmp = \
^(tools/nss/libvirt_nss.*\.c)
^(tools/nss/libvirt_nss.*\.c|tools/virt-login-shell\.c)

View File

@ -38,12 +38,8 @@
int main(int argc, char **argv) {
char uidstr[INT_BUFSIZE_BOUND(uid_t)];
char gidstr[INT_BUFSIZE_BOUND(gid_t)];
const char *const newargv[] = {
LIBEXECDIR "/virt-login-shell-helper",
uidstr,
gidstr,
NULL,
};
const char * newargv[6];
size_t nargs = 0;
char *newenv[] = {
NULL,
NULL,
@ -60,10 +56,23 @@ int main(int argc, char **argv) {
exit(EXIT_FAILURE);
}
if (argc != 1) {
fprintf(stderr, "%s: no arguments expected\n", argv[0]);
newargv[nargs++] = LIBEXECDIR "/virt-login-shell-helper";
if (argc == 3) {
if (strcmp(argv[1], "-c") != 0) {
fprintf(stderr, "%s: syntax: %s [-c CMDSTR]\n", argv[0], argv[0]);
exit(EXIT_FAILURE);
}
newargv[nargs++] = argv[1];
newargv[nargs++] = argv[2];
} else if (argc != 1) {
fprintf(stderr, "%s: syntax: %s [-c CMDSTR]\n", argv[0], argv[0]);
exit(EXIT_FAILURE);
}
newargv[nargs++] = uidstr;
newargv[nargs++] = gidstr;
newargv[nargs++] = NULL;
assert(nargs <= (sizeof(newargv)/sizeof(newargv[0])));
if (term &&
asprintf(&(newenv[0]), "TERM=%s", term) < 0) {