libsmbclient: SMBC_module_init() call does not init global parameters if $HOME is not set

test-libsmbclient-without-HOME-env.c

/* https://bugzilla.samba.org/show_bug.cgi?id=9038 */

#include <stdio.h>
#include <stdlib.h>
#include <libsmbclient.h>

char *url;

void smbc_auth_fn(SMBCCTX *smbcctx,
	const char *server, const char *share,
	char *workgroup, int wgmaxlen,
	char *username, int unmaxlen,
	char *password, int pwmaxlen)
{
  workgroup[0] = '\0';
  username[0] = '\0';
  password[0] = '\0';
}

void smbc_test(int n)
{
  SMBCCTX *smbcctx;
  SMBCFILE *smbcfile;
  smbc_opendir_fn opendir_fn;

  printf("Test %d\n", n);

  smbcctx = smbc_new_context();
  smbc_init_context(smbcctx);
  smbc_setFunctionAuthDataWithContext(smbcctx, smbc_auth_fn);

  opendir_fn = smbc_getFunctionOpendir(smbcctx);
  smbcfile = (*opendir_fn)(smbcctx, url);

  smbc_free_context(smbcctx, 1);
}

int main(int argc, char **argv)
{
  if (argc < 2) {
    printf("Usage: %s SMB_URL\n", argv[0]);
    exit(1);
  }

  url = argv[1];

  smbc_test(1);
  smbc_test(2);
  unsetenv("HOME");
  smbc_test(3);

  exit(0);
}