/**
* check for preset values from a config files or envrionment variables
*
* @param[in,out] opts the structure with the option names to check
*/
static tSuccess
do_presets(tOptions * opts)
{
tOptDesc * od = NULL;
if (! SUCCESSFUL(immediate_opts(opts)))
return FAILURE;
/*
* IF this option set has a --save-opts option, then it also
* has a --load-opts option. See if a command line option has disabled
* option presetting.
*/
if ( (opts->specOptIdx.save_opts != NO_EQUIVALENT)
&& (opts->specOptIdx.save_opts != 0)) {
od = opts->pOptDesc + opts->specOptIdx.save_opts + 1;
if (DISABLED_OPT(od))
return SUCCESS;
}
/*
* Until we return from this procedure, disable non-presettable opts
*/
opts->fOptSet |= OPTPROC_PRESETTING;
/*
* IF there are no config files,
* THEN do any environment presets and leave.
*/
if (opts->papzHomeList == NULL) {
env_presets(opts, ENV_ALL);
}
else {
env_presets(opts, ENV_IMM);
/*
* Check to see if environment variables have disabled presetting.
*/
if ((od != NULL) && ! DISABLED_OPT(od))
intern_file_load(opts);
/*
* ${PROGRAM_LOAD_OPTS} value of "no" cannot disable other environment
* variable options. Only the loading of .rc files.
*/
env_presets(opts, ENV_NON_IMM);
}
opts->fOptSet &= ~OPTPROC_PRESETTING;
return SUCCESS;
}
/*
* doPrognameEnv - check for preset values from the ${PROGNAME}
* environment variable. This is accomplished by parsing the text into
* tokens, temporarily replacing the arg vector and calling
* immediate_opts and/or regular_opts.
*/
LOCAL void
doPrognameEnv(tOptions * pOpts, teEnvPresetType type)
{
char const* pczOptStr = getenv(pOpts->pzPROGNAME);
token_list_t* pTL;
int sv_argc;
tAoUI sv_flag;
char** sv_argv;
/*
* No such beast? Then bail now.
*/
if (pczOptStr == NULL)
return;
/*
* Tokenize the string. If there's nothing of interest, we'll bail
* here immediately.
*/
pTL = ao_string_tokenize(pczOptStr);
if (pTL == NULL)
return;
/*
* Substitute our $PROGNAME argument list for the real one
*/
sv_argc = pOpts->origArgCt;
sv_argv = pOpts->origArgVect;
sv_flag = pOpts->fOptSet;
/*
* We add a bogus pointer to the start of the list. The program name
* has already been pulled from "argv", so it won't get dereferenced.
* The option scanning code will skip the "program name" at the start
* of this list of tokens, so we accommodate this way ....
*/
pOpts->origArgVect = (char**)(pTL->tkn_list - 1);
pOpts->origArgCt = pTL->tkn_ct + 1;
pOpts->fOptSet &= ~OPTPROC_ERRSTOP;
pOpts->curOptIdx = 1;
pOpts->pzCurOpt = NULL;
switch (type) {
case ENV_IMM:
(void)immediate_opts(pOpts);
break;
case ENV_ALL:
(void)immediate_opts(pOpts);
pOpts->curOptIdx = 1;
pOpts->pzCurOpt = NULL;
/* FALLTHROUGH */
case ENV_NON_IMM:
(void)regular_opts(pOpts);
}
/*
* Free up the temporary arg vector and restore the original program args.
*/
free(pTL);
pOpts->origArgVect = sv_argv;
pOpts->origArgCt = sv_argc;
pOpts->fOptSet = sv_flag;
}
