PR_IMPLEMENT(char*) PR_GetEnvSecure(const char *var)
{
#ifdef HAVE_SECURE_GETENV
char *ev;
if (!_pr_initialized) _PR_ImplicitInitialization();
_PR_LOCK_ENV();
ev = secure_getenv(var);
_PR_UNLOCK_ENV();
return ev;
#else
#ifdef XP_UNIX
/*
** Fall back to checking uids and gids. This won't detect any other
** privilege-granting mechanisms the platform may have. This also
** can't detect the case where the process already called
** setuid(geteuid()) and/or setgid(getegid()).
*/
if (getuid() != geteuid() || getgid() != getegid()) {
return NULL;
}
#endif /* XP_UNIX */
return PR_GetEnv(var);
#endif /* HAVE_SECURE_GETENV */
}
PR_IMPLEMENT(char*) PR_GetEnv(const char *var)
{
char *ev;
if (!_pr_initialized) _PR_ImplicitInitialization();
_PR_LOCK_ENV();
ev = _PR_MD_GET_ENV(var);
_PR_UNLOCK_ENV();
return ev;
}
PR_IMPLEMENT(PRStatus) PR_SetEnv(const char *string)
{
PRIntn result;
if (!_pr_initialized) _PR_ImplicitInitialization();
if ( !strchr(string, '=')) return(PR_FAILURE);
_PR_LOCK_ENV();
result = _PR_MD_PUT_ENV(string);
_PR_UNLOCK_ENV();
return (result)? PR_FAILURE : PR_SUCCESS;
}
PR_IMPLEMENT(char **) PR_DuplicateEnvironment(void)
{
char **the_environ, **result, **end, **src, **dst;
_PR_LOCK_ENV();
#ifdef DARWIN
the_environ = *(_NSGetEnviron());
#else
the_environ = environ;
#endif
for (end = the_environ; *end != NULL; end++)
/* empty loop body */;
result = (char **)PR_Malloc(sizeof(char *) * (end - the_environ + 1));
if (result != NULL) {
for (src = the_environ, dst = result; src != end; src++, dst++) {
size_t len;
len = strlen(*src) + 1;
*dst = PR_Malloc(len);
if (*dst == NULL) {
/* Allocation failed. Must clean up the half-copied env. */
char **to_delete;
for (to_delete = result; to_delete != dst; to_delete++) {
PR_Free(*to_delete);
}
PR_Free(result);
result = NULL;
goto out;
}
memcpy(*dst, *src, len);
}
*dst = NULL;
}
out:
_PR_UNLOCK_ENV();
return result;
}
