/**
* scan the command line for immediate action options.
* This is only called the first time through.
*/
LOCAL tSuccess
doImmediateOpts(tOptions* pOpts)
{
pOpts->curOptIdx = 1; /* start by skipping program name */
pOpts->pzCurOpt = NULL;
/*
* Examine all the options from the start. We process any options that
* are marked for immediate processing.
*/
for (;;) {
tOptState optState = OPTSTATE_INITIALIZER(PRESET);
switch (nextOption(pOpts, &optState)) {
case FAILURE: goto failed_option;
case PROBLEM: return SUCCESS; /* no more args */
case SUCCESS: break;
}
/*
* IF this is an immediate-attribute option, then do it.
*/
if (! DO_IMMEDIATELY(optState.flags))
continue;
if (! SUCCESSFUL(handle_opt(pOpts, &optState)))
break;
} failed_option:;
if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0)
(*pOpts->pUsageProc)(pOpts, EXIT_FAILURE);
return FAILURE;
}
/**
* Process all the options from our current position onward. (This allows
* interspersed options and arguments for the few non-standard programs that
* require it.) Thus, do not rewind option indexes because some programs
* choose to re-invoke after a non-option.
*/
LOCAL tSuccess
doRegularOpts(tOptions* pOpts)
{
for (;;) {
tOptState optState = OPTSTATE_INITIALIZER(DEFINED);
switch (nextOption(pOpts, &optState)) {
case FAILURE: goto failed_option;
case PROBLEM: return SUCCESS; /* no more args */
case SUCCESS: break;
}
/*
* IF this is an immediate action option,
* THEN skip it (unless we are supposed to do it a second time).
*/
if (! DO_NORMALLY(optState.flags)) {
if (! DO_SECOND_TIME(optState.flags))
continue;
optState.pOD->optOccCt--; /* don't count this repetition */
}
if (! SUCCESSFUL(handle_opt(pOpts, &optState)))
break;
} failed_option:;
if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0)
(*pOpts->pUsageProc)(pOpts, EXIT_FAILURE);
return FAILURE;
}
/*=export_func optionVendorOption
* private:
*
* what: Process a vendor option
* arg: + tOptions * + pOpts + program options descriptor +
* arg: + tOptDesc * + pOptDesc + the descriptor for this arg +
*
* doc:
* For POSIX specified utilities, the options are constrained to the options,
* @xref{config attributes, Program Configuration}. AutoOpts clients should
* never specify this directly. It gets referenced when the option
* definitions contain a "vendor-opt" attribute.
=*/
void
optionVendorOption(tOptions * pOpts, tOptDesc * pOD)
{
tOptState opt_st = OPTSTATE_INITIALIZER(PRESET);
char const * vopt_str = pOD->optArg.argString;
if (pOpts <= OPTPROC_EMIT_LIMIT)
return;
if ((pOD->fOptState & OPTST_RESET) != 0)
return;
if ((pOD->fOptState & OPTPROC_IMMEDIATE) == 0)
opt_st.flags = OPTST_DEFINED;
if ( ((pOpts->fOptSet & OPTPROC_VENDOR_OPT) == 0)
|| ! SUCCESSFUL(opt_find_long(pOpts, vopt_str, &opt_st))
|| ! SUCCESSFUL(get_opt_arg(pOpts, &opt_st)) )
{
fprintf(stderr, zIllVendOptStr, pOpts->pzProgName, vopt_str);
(*pOpts->pUsageProc)(pOpts, EXIT_FAILURE);
/* NOTREACHED */
_exit(EXIT_FAILURE); /* to be certain */
}
/*
* See if we are in immediate handling state.
*/
if (pOpts->fOptSet & OPTPROC_IMMEDIATE) {
/*
* See if the enclosed option is okay with that state.
*/
if (DO_IMMEDIATELY(opt_st.flags))
(void)handle_opt(pOpts, &opt_st);
} else {
/*
* non-immediate direction.
* See if the enclosed option is okay with that state.
*/
if (DO_NORMALLY(opt_st.flags) || DO_SECOND_TIME(opt_st.flags))
(void)handle_opt(pOpts, &opt_st);
}
}
int ducrc_getopt(struct ducrc *ducrc, int *argc, char **argv[])
{
struct option longopts[MAX_OPTIONS + 1] = { { NULL } };
char optstr[MAX_OPTIONS*2] = "";
int n = 0;
int l = 0;
/* Prepare a list of options for getopt_long() */
struct ducrc_option **os = ducrc->option_list;
int i;
for(i=0; i<ducrc->noptions; i++) {
struct ducrc_option *o = *os;
longopts[n].name = o->longopt;
if(o->shortopt) {
l += sprintf(optstr+l, "%c", o->shortopt);
longopts[n].val = o->shortopt;
}
if(o->type == DUCRC_TYPE_BOOL) {
longopts[n].has_arg = no_argument;
} else {
longopts[n].has_arg = required_argument;
if(o->shortopt) l += sprintf(optstr+l, ":");
}
n++;
os++;
}
/* Rely on libc to do the hard work */
int c;
int idx;
if(*argc > 1) optind = 2;
while( ( c = getopt_long(*argc, *argv, optstr, longopts, &idx)) != -1) {
if(c == '?') return -1;
handle_opt(ducrc, c, c ? 0 : longopts[idx].name, optarg);
}
*argc -= optind;
*argv += optind;
return 0;
}
/**
* scan the command line for immediate action options.
* This is only called the first time through.
* While this procedure is active, the OPTPROC_IMMEDIATE is true.
*
* @param pOpts program options descriptor
* @returns SUCCESS or FAILURE
*/
LOCAL tSuccess
immediate_opts(tOptions * opts)
{
tSuccess res;
opts->fOptSet |= OPTPROC_IMMEDIATE;
opts->curOptIdx = 1; /* start by skipping program name */
opts->pzCurOpt = NULL;
/*
* Examine all the options from the start. We process any options that
* are marked for immediate processing.
*/
for (;;) {
tOptState opt_st = OPTSTATE_INITIALIZER(PRESET);
res = next_opt(opts, &opt_st);
switch (res) {
case FAILURE: goto failed_option;
case PROBLEM: res = SUCCESS; goto leave;
case SUCCESS: break;
}
/*
* IF this is an immediate-attribute option, then do it.
*/
if (! DO_IMMEDIATELY(opt_st.flags))
continue;
if (! SUCCESSFUL(handle_opt(opts, &opt_st)))
break;
} failed_option:;
if ((opts->fOptSet & OPTPROC_ERRSTOP) != 0)
(*opts->pUsageProc)(opts, EXIT_FAILURE);
leave:
opts->fOptSet &= ~OPTPROC_IMMEDIATE;
return res;
}
/*
* Load an option from a block of text. The text must start with the
* configurable/option name and be followed by its associated value.
* That value may be processed in any of several ways. See "tOptionLoadMode"
* in autoopts.h.
*/
LOCAL void
loadOptionLine(
tOptions* pOpts,
tOptState* pOS,
char* pzLine,
tDirection direction,
tOptionLoadMode load_mode )
{
while (IS_WHITESPACE_CHAR(*pzLine)) pzLine++;
{
char* pzArg = assembleArgValue(pzLine, load_mode);
if (! SUCCESSFUL(opt_find_long(pOpts, pzLine, pOS)))
return;
if (pOS->flags & OPTST_NO_INIT)
return;
pOS->pzOptArg = pzArg;
}
switch (pOS->flags & (OPTST_IMM|OPTST_DISABLE_IMM)) {
case 0:
/*
* The selected option has no immediate action.
* THEREFORE, if the direction is PRESETTING
* THEN we skip this option.
*/
if (PRESETTING(direction))
return;
break;
case OPTST_IMM:
if (PRESETTING(direction)) {
/*
* We are in the presetting direction with an option we handle
* immediately for enablement, but normally for disablement.
* Therefore, skip if disabled.
*/
if ((pOS->flags & OPTST_DISABLED) == 0)
return;
} else {
/*
* We are in the processing direction with an option we handle
* immediately for enablement, but normally for disablement.
* Therefore, skip if NOT disabled.
*/
if ((pOS->flags & OPTST_DISABLED) != 0)
return;
}
break;
case OPTST_DISABLE_IMM:
if (PRESETTING(direction)) {
/*
* We are in the presetting direction with an option we handle
* immediately for disablement, but normally for disablement.
* Therefore, skip if NOT disabled.
*/
if ((pOS->flags & OPTST_DISABLED) != 0)
return;
} else {
/*
* We are in the processing direction with an option we handle
* immediately for disablement, but normally for disablement.
* Therefore, skip if disabled.
*/
if ((pOS->flags & OPTST_DISABLED) == 0)
return;
}
break;
case OPTST_IMM|OPTST_DISABLE_IMM:
/*
* The selected option is always for immediate action.
* THEREFORE, if the direction is PROCESSING
* THEN we skip this option.
*/
if (PROCESSING(direction))
return;
break;
}
/*
* Fix up the args.
*/
if (OPTST_GET_ARGTYPE(pOS->pOD->fOptState) == OPARG_TYPE_NONE) {
if (*pOS->pzOptArg != NUL)
return;
pOS->pzOptArg = NULL;
} else if (pOS->pOD->fOptState & OPTST_ARG_OPTIONAL) {
if (*pOS->pzOptArg == NUL)
pOS->pzOptArg = NULL;
else {
AGDUPSTR(pOS->pzOptArg, pOS->pzOptArg, "option argument");
pOS->flags |= OPTST_ALLOC_ARG;
}
} else {
if (*pOS->pzOptArg == NUL)
pOS->pzOptArg = zNil;
else {
AGDUPSTR(pOS->pzOptArg, pOS->pzOptArg, "option argument");
pOS->flags |= OPTST_ALLOC_ARG;
}
}
{
tOptionLoadMode sv = option_load_mode;
option_load_mode = load_mode;
handle_opt(pOpts, pOS);
option_load_mode = sv;
}
}
/**
* Load an option from a block of text. The text must start with the
* configurable/option name and be followed by its associated value.
* That value may be processed in any of several ways. See "tOptionLoadMode"
* in autoopts.h.
*
* @param[in,out] opts program options descriptor
* @param[in,out] opt_state option processing state
* @param[in,out] line source line with long option name in it
* @param[in] direction current processing direction (preset or not)
* @param[in] load_mode option loading mode (OPTION_LOAD_*)
*/
LOCAL void
loadOptionLine(
tOptions * opts,
tOptState * opt_state,
char * line,
tDirection direction,
tOptionLoadMode load_mode )
{
line = SPN_LOAD_LINE_SKIP_CHARS(line);
{
char * arg = assemble_arg_val(line, load_mode);
if (! SUCCESSFUL(opt_find_long(opts, line, opt_state)))
return;
if (opt_state->flags & OPTST_NO_INIT)
return;
opt_state->pzOptArg = arg;
}
switch (opt_state->flags & (OPTST_IMM|OPTST_DISABLE_IMM)) {
case 0:
/*
* The selected option has no immediate action.
* THEREFORE, if the direction is PRESETTING
* THEN we skip this option.
*/
if (PRESETTING(direction))
return;
break;
case OPTST_IMM:
if (PRESETTING(direction)) {
/*
* We are in the presetting direction with an option we handle
* immediately for enablement, but normally for disablement.
* Therefore, skip if disabled.
*/
if ((opt_state->flags & OPTST_DISABLED) == 0)
return;
} else {
/*
* We are in the processing direction with an option we handle
* immediately for enablement, but normally for disablement.
* Therefore, skip if NOT disabled.
*/
if ((opt_state->flags & OPTST_DISABLED) != 0)
return;
}
break;
case OPTST_DISABLE_IMM:
if (PRESETTING(direction)) {
/*
* We are in the presetting direction with an option we handle
* immediately for disablement, but normally for disablement.
* Therefore, skip if NOT disabled.
*/
if ((opt_state->flags & OPTST_DISABLED) != 0)
return;
} else {
/*
* We are in the processing direction with an option we handle
* immediately for disablement, but normally for disablement.
* Therefore, skip if disabled.
*/
if ((opt_state->flags & OPTST_DISABLED) == 0)
return;
}
break;
case OPTST_IMM|OPTST_DISABLE_IMM:
/*
* The selected option is always for immediate action.
* THEREFORE, if the direction is PROCESSING
* THEN we skip this option.
*/
if (PROCESSING(direction))
return;
break;
}
/*
* Fix up the args.
*/
if (OPTST_GET_ARGTYPE(opt_state->pOD->fOptState) == OPARG_TYPE_NONE) {
if (*opt_state->pzOptArg != NUL)
return;
opt_state->pzOptArg = NULL;
} else if (opt_state->pOD->fOptState & OPTST_ARG_OPTIONAL) {
if (*opt_state->pzOptArg == NUL)
opt_state->pzOptArg = NULL;
else {
AGDUPSTR(opt_state->pzOptArg, opt_state->pzOptArg, "opt arg");
opt_state->flags |= OPTST_ALLOC_ARG;
}
} else {
if (*opt_state->pzOptArg == NUL)
opt_state->pzOptArg = zNil;
else {
AGDUPSTR(opt_state->pzOptArg, opt_state->pzOptArg, "opt arg");
opt_state->flags |= OPTST_ALLOC_ARG;
}
}
{
tOptionLoadMode sv = option_load_mode;
option_load_mode = load_mode;
handle_opt(opts, opt_state);
option_load_mode = sv;
}
}
static void
do_env_opt(tOptState * os, char * env_name,
tOptions * pOpts, teEnvPresetType type)
{
os->pzOptArg = getenv(env_name);
if (os->pzOptArg == NULL)
return;
os->flags = OPTST_PRESET | OPTST_ALLOC_ARG | os->pOD->fOptState;
os->optType = TOPT_UNDEFINED;
if ( (os->pOD->pz_DisablePfx != NULL)
&& (streqvcmp(os->pzOptArg, os->pOD->pz_DisablePfx) == 0)) {
os->flags |= OPTST_DISABLED;
os->pzOptArg = NULL;
}
switch (type) {
case ENV_IMM:
/*
* Process only immediate actions
*/
if (DO_IMMEDIATELY(os->flags))
break;
return;
case ENV_NON_IMM:
/*
* Process only NON immediate actions
*/
if (DO_NORMALLY(os->flags) || DO_SECOND_TIME(os->flags))
break;
return;
default: /* process everything */
break;
}
/*
* Make sure the option value string is persistent and consistent.
*
* The interpretation of the option value depends
* on the type of value argument the option takes
*/
if (OPTST_GET_ARGTYPE(os->pOD->fOptState) == OPARG_TYPE_NONE) {
/*
* Ignore any value.
*/
os->pzOptArg = NULL;
} else if (os->pzOptArg[0] == NUL) {
/*
* If the argument is the empty string and the argument is
* optional, then treat it as if the option was not specified.
*/
if ((os->pOD->fOptState & OPTST_ARG_OPTIONAL) == 0)
return;
os->pzOptArg = NULL;
} else {
AGDUPSTR(os->pzOptArg, os->pzOptArg, "option argument");
os->flags |= OPTST_ALLOC_ARG;
}
handle_opt(pOpts, os);
}
int ducrc_read(struct ducrc *ducrc, const char *path)
{
FILE *f = fopen(path, "r");
if(f == NULL) {
//duc_log(NULL, DUC_LOG_DBG, "Not reading configuration from '%s': %s", path, strerror(errno));
return -1;
}
char section[256] = "";
char buf[256];
while(fgets(buf, sizeof buf, f) != NULL) {
char *l = trim(buf);
char *p;
/* Strip newlines and comments */
p = strchr(l, '#'); if(p) *p = '\0';
p = strchr(l, '\n'); if(p) *p = '\0';
p = strchr(l, '\r'); if(p) *p = '\0';
/* section? */
if(l[0] == '[') {
p = strchr(l, ']');
if(p) {
*p = 0;
strncpy(section, l+1, sizeof(section));
}
continue;
}
if(strlen(section) == 0 ||
strcmp(section, "global") == 0 ||
strcmp(section, ducrc->section) == 0) {
/* key + value ? */
p = strchr(l, ' ');
if(p) {
*p = '\0';
char *longopt = trim(l);
char *val = trim(p + 1);
handle_opt(ducrc, 0, longopt, val);
continue;
}
/* longopt only */
char *longopt = trim(l);
if(strlen(longopt) > 0) {
handle_opt(ducrc, 0, longopt, NULL);
}
}
}
fclose(f);
return 0;
}
/**
* Load an option from a block of text. The text must start with the
* configurable/option name and be followed by its associated value.
* That value may be processed in any of several ways. See "tOptionLoadMode"
* in autoopts.h.
*
* @param[in,out] opts program options descriptor
* @param[in,out] opt_state option processing state
* @param[in,out] line source line with long option name in it
* @param[in] direction current processing direction (preset or not)
* @param[in] load_mode option loading mode (OPTION_LOAD_*)
*/
LOCAL void
load_opt_line(tOptions * opts, tOptState * opt_state, char * line,
tDirection direction, tOptionLoadMode load_mode )
{
/*
* When parsing a stored line, we only look at the characters after
* a hyphen. Long names must always be at least two characters and
* short options are always exactly one character long.
*/
line = SPN_LOAD_LINE_SKIP_CHARS(line);
{
char * arg = assemble_arg_val(line, load_mode);
if (IS_OPTION_NAME_CHAR(line[1])) {
if (! SUCCESSFUL(opt_find_long(opts, line, opt_state)))
return;
} else if (! SUCCESSFUL(opt_find_short(opts, *line, opt_state)))
return;
if ((! CALLED(direction)) && (opt_state->flags & OPTST_NO_INIT))
return;
opt_state->pzOptArg = trim_quotes(arg);
}
if (! direction_ok(opt_state->flags, direction))
return;
/*
* Fix up the args.
*/
if (OPTST_GET_ARGTYPE(opt_state->pOD->fOptState) == OPARG_TYPE_NONE) {
if (*opt_state->pzOptArg != NUL)
return;
opt_state->pzOptArg = NULL;
} else if (opt_state->pOD->fOptState & OPTST_ARG_OPTIONAL) {
if (*opt_state->pzOptArg == NUL)
opt_state->pzOptArg = NULL;
else {
AGDUPSTR(opt_state->pzOptArg, opt_state->pzOptArg, "opt arg");
opt_state->flags |= OPTST_ALLOC_ARG;
}
} else {
if (*opt_state->pzOptArg == NUL)
opt_state->pzOptArg = zNil;
else {
AGDUPSTR(opt_state->pzOptArg, opt_state->pzOptArg, "opt arg");
opt_state->flags |= OPTST_ALLOC_ARG;
}
}
{
tOptionLoadMode sv = option_load_mode;
option_load_mode = load_mode;
handle_opt(opts, opt_state);
option_load_mode = sv;
}
}
