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popt.c
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/** \ingroup popt
* \file popt/popt.c
*/
/* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
file accompanying popt source distributions, available from
ftp://ftp.rpm.org/pub/rpm/dist */
#undef MYDEBUG
#include "system.h"
#if defined(__LCLINT__) && !defined(_MSC_VER)
/*@-declundef -exportheader @*/
extern long long int strtoll(const char *nptr, /*@null@*/ char **endptr,
int base)
/*@modifies *endptr@*/;
/*@=declundef =exportheader @*/
#endif /* defined(__LCLINT__) */
#ifdef HAVE_FLOAT_H
#include <float.h>
#endif
#include <math.h>
#include "poptint.h"
#if defined(HAVE_ASSERT_H)
#include <assert.h>
#else
#define assert(_x)
#endif
#ifdef MYDEBUG
/*@unchecked@*/
int _popt_debug = 0;
#endif
/*@unchecked@*/
unsigned int _poptArgMask = POPT_ARG_MASK;
/*@unchecked@*/
unsigned int _poptGroupMask = POPT_GROUP_MASK;
#if !defined(HAVE_STRERROR) && !defined(__LCLINT__)
static char * strerror(int errno)
{
extern int sys_nerr;
extern char * sys_errlist[];
if ((0 <= errno) && (errno < sys_nerr))
return sys_errlist[errno];
else
return POPT_("unknown errno");
}
#endif
#ifdef MYDEBUG
/*@unused@*/
static void prtcon(const char *msg, poptContext con)
{
if (msg) fprintf(stderr, "%s", msg);
fprintf(stderr, "\tcon %p os %p nextCharArg \"%s\" nextArg \"%s\" argv[%d] \"%s\"\n",
con, con->os,
(con->os->nextCharArg ? con->os->nextCharArg : ""),
(con->os->nextArg ? con->os->nextArg : ""),
con->os->next,
(con->os->argv && con->os->argv[con->os->next]
? con->os->argv[con->os->next] : ""));
}
#endif
void poptSetExecPath(poptContext con, const char * path, int allowAbsolute)
{
con->execPath = _free(con->execPath);
con->execPath = xstrdup(path);
con->execAbsolute = allowAbsolute;
return;
}
static void invokeCallbacksPRE(poptContext con, const struct poptOption * opt)
/*@globals internalState@*/
/*@modifies internalState@*/
{
if (opt != NULL)
for (; opt->longName || opt->shortName || opt->arg; opt++) {
poptArg arg;
arg.ptr = opt->arg;
if (arg.ptr)
switch (poptArgType(opt)) {
case POPT_ARG_INCLUDE_TABLE: /* Recurse on included sub-tables. */
poptSubstituteHelpI18N(arg.opt); /* XXX side effects */
invokeCallbacksPRE(con, arg.opt);
/*@switchbreak@*/ break;
case POPT_ARG_CALLBACK: /* Perform callback. */
if (!CBF_ISSET(opt, PRE))
/*@switchbreak@*/ break;
/*@-noeffectuncon @*/ /* XXX no known way to annotate (*vector) calls. */
arg.cb(con, POPT_CALLBACK_REASON_PRE, NULL, NULL, opt->descrip);
/*@=noeffectuncon @*/
/*@switchbreak@*/ break;
}
}
}
static void invokeCallbacksPOST(poptContext con, const struct poptOption * opt)
/*@globals internalState@*/
/*@modifies internalState@*/
{
if (opt != NULL)
for (; opt->longName || opt->shortName || opt->arg; opt++) {
poptArg arg;
arg.ptr = opt->arg;
if (arg.ptr)
switch (poptArgType(opt)) {
case POPT_ARG_INCLUDE_TABLE: /* Recurse on included sub-tables. */
poptSubstituteHelpI18N(arg.opt); /* XXX side effects */
invokeCallbacksPOST(con, arg.opt);
/*@switchbreak@*/ break;
case POPT_ARG_CALLBACK: /* Perform callback. */
if (!CBF_ISSET(opt, POST))
/*@switchbreak@*/ break;
/*@-noeffectuncon @*/ /* XXX no known way to annotate (*vector) calls. */
arg.cb(con, POPT_CALLBACK_REASON_POST, NULL, NULL, opt->descrip);
/*@=noeffectuncon @*/
/*@switchbreak@*/ break;
}
}
}
static void invokeCallbacksOPTION(poptContext con,
const struct poptOption * opt,
const struct poptOption * myOpt,
/*@null@*/ const void * myData, int shorty)
/*@globals internalState@*/
/*@modifies internalState@*/
{
const struct poptOption * cbopt = NULL;
poptArg cbarg;
cbarg.ptr = NULL;
if (opt != NULL)
for (; opt->longName || opt->shortName || opt->arg; opt++) {
poptArg arg;
arg.ptr = opt->arg;
switch (poptArgType(opt)) {
case POPT_ARG_INCLUDE_TABLE: /* Recurse on included sub-tables. */
poptSubstituteHelpI18N(arg.opt); /* XXX side effects */
if (opt->arg != NULL)
invokeCallbacksOPTION(con, opt->arg, myOpt, myData, shorty);
/*@switchbreak@*/ break;
case POPT_ARG_CALLBACK: /* Save callback info. */
if (CBF_ISSET(opt, SKIPOPTION))
/*@switchbreak@*/ break;
cbopt = opt;
cbarg.ptr = opt->arg;
/*@switchbreak@*/ break;
default: /* Perform callback on matching option. */
if (cbopt == NULL || cbarg.cb == NULL)
/*@switchbreak@*/ break;
if ((myOpt->shortName && opt->shortName && shorty &&
myOpt->shortName == opt->shortName)
|| (myOpt->longName != NULL && opt->longName != NULL &&
!strcmp(myOpt->longName, opt->longName)))
{ const void *cbData = (cbopt->descrip ? cbopt->descrip : myData);
/*@-noeffectuncon @*/ /* XXX no known way to annotate (*vector) calls. */
cbarg.cb(con, POPT_CALLBACK_REASON_OPTION,
myOpt, con->os->nextArg, cbData);
/*@=noeffectuncon @*/
/* Terminate (unless explcitly continuing). */
if (!CBF_ISSET(cbopt, CONTINUE))
return;
}
/*@switchbreak@*/ break;
}
}
}
poptContext poptGetContext(const char * name, int argc, const char ** argv,
const struct poptOption * options, unsigned int flags)
{
poptContext con = (poptContext) xcalloc(1, sizeof(*con));
assert(con); /* XXX can't happen */
if (con == NULL) return NULL;
con->optionDepth = POPTINT_OPTION_DEPTH;
con->os = con->optionStack;
#ifdef SUPPORT_GLOBAL_CALCULATOR
con->calcDepth = POPTINT_CALC_DEPTH;
con->stk = con->calcStack;
#endif
con->os->argc = argc;
/*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
con->os->argv = argv;
/*@=dependenttrans =assignexpose@*/
con->os->argb = NULL;
if (!(flags & POPT_CONTEXT_KEEP_FIRST))
con->os->next = 1; /* skip argv[0] */
con->leftovers = (poptArgv) xcalloc( (size_t)(argc + 1), sizeof(*con->leftovers) );
/*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
con->options = options;
/*@=dependenttrans =assignexpose@*/
con->aliases = NULL;
con->numAliases = 0;
con->flags = flags;
con->execs = NULL;
con->numExecs = 0;
con->nav = argc * 2;
con->av = (poptArgv) xcalloc( (size_t)con->nav, sizeof(*con->av) );
con->execAbsolute = 1;
con->arg_strip = NULL;
if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
con->flags |= POPT_CONTEXT_POSIXMEHARDER;
if (name)
con->appName = xstrdup(name);
invokeCallbacksPRE(con, con->options);
return con;
}
static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
/*@uses os @*/
/*@releases os->nextArg, os->argv, os->argb @*/
/*@modifies os @*/
{
#if !defined(SUPPORT_CONTIGUOUS_ARGV)
int i;
for (i = 0; os->argv[i]; i++)
os->argv[i] = _free(os->argv[i]);
#endif
os->argv = _free(os->argv);
os->argb = PBM_FREE(os->argb);
os->nextArg = _free(os->nextArg);
}
void poptResetContext(poptContext con)
{
if (con == NULL) return;
while (con->os > con->optionStack) {
cleanOSE(con->os--);
}
con->os->argb = PBM_FREE(con->os->argb);
con->os->currAlias = NULL;
con->os->nextCharArg = NULL;
con->os->nextArg = NULL;
con->os->next = 1; /* skip argv[0] */
con->numLeftovers = 0;
con->nextLeftover = 0;
con->restLeftover = 0;
con->doExec = NULL;
if (con->av != NULL) {
unsigned int i;
for (i = 0; i < con->ac; i++) {
/*@-unqualifiedtrans@*/ /* FIX: typedef double indirection. */
con->av[i] = _free(con->av[i]);
/*@=unqualifiedtrans@*/
}
}
con->ac = 0;
con->arg_strip = PBM_FREE(con->arg_strip);
/*@-nullstate@*/ /* FIX: con->av != NULL */
return;
/*@=nullstate@*/
}
/* Only one of longName, shortName should be set, not both. */
static int handleExec(/*@special@*/ poptContext con,
/*@null@*/ const char * longName, char shortName)
/*@uses con->execs, con->numExecs, con->flags, con->doExec,
con->av, con->nav, con->ac @*/
/*@modifies con @*/
{
poptItem item;
int i;
if (con->execs == NULL || con->numExecs <= 0)
return 0;
for (i = con->numExecs - 1; i >= 0; i--) {
item = con->execs + i;
if (longName && !(item->option.longName &&
!strcmp(longName, item->option.longName)))
continue;
else if (shortName != item->option.shortName)
continue;
break;
}
if (i < 0) return 0;
if (con->flags & POPT_CONTEXT_NO_EXEC)
return 1;
if (con->doExec == NULL) {
con->doExec = con->execs + i;
return 1;
}
/* We already have an exec to do; remember this option for next
time 'round */
if ((con->ac + 1) >= (con->nav)) {
con->nav += 10;
con->av = (poptArgv) xrealloc(con->av, sizeof(*con->av) * con->nav);
}
i = con->ac++;
assert(con->av); /* XXX can't happen */
if (con->av != NULL)
{ char *s = (char*) xmalloc((longName ? strlen(longName) : 0) + sizeof("--"));
assert(s); /* XXX can't happen */
if (s != NULL) {
con->av[i] = s;
*s++ = '-';
if (longName)
s = stpcpy( stpcpy(s, "-"), longName);
else
*s++ = shortName;
*s = '\0';
} else
con->av[i] = NULL;
}
return 1;
}
/**
* Compare long option for equality, adjusting for POPT_ARGFLAG_TOGGLE.
* @param opt option
* @param longName arg option
* @param longNameLen arg option length
* @return does long option match?
*/
static int
longOptionStrcmp(const struct poptOption * opt,
/*@null@*/ const char * longName, size_t longNameLen)
/*@*/
{
const char * optLongName = opt->longName;
int rc;
assert(optLongName && longName); /* XXX can't heppen */
if (optLongName == NULL || longName == NULL)
return 0;
if (F_ISSET(opt, TOGGLE)) {
if (optLongName[0] == 'n' && optLongName[1] == 'o') {
optLongName += sizeof("no") - 1;
if (optLongName[0] == '-')
optLongName++;
}
if (longName[0] == 'n' && longName[1] == 'o') {
longName += sizeof("no") - 1;
longNameLen -= sizeof("no") - 1;
if (longName[0] == '-') {
longName++;
longNameLen--;
}
}
}
rc = (int)(strlen(optLongName) == longNameLen);
if (rc)
rc = (int)(strncmp(optLongName, longName, longNameLen) == 0);
return rc;
}
/* Only one of longName, shortName may be set at a time */
static int handleAlias(/*@special@*/ poptContext con,
/*@null@*/ const char * longName, size_t longNameLen,
char shortName,
/*@exposed@*/ /*@null@*/ const char * nextArg)
/*@uses con->aliases, con->numAliases, con->optionStack, con->os,
con->os->currAlias, con->os->currAlias->option.longName @*/
/*@modifies con @*/
{
poptItem item = con->os->currAlias;
int rc;
int i;
if (item) {
if (longName && item->option.longName != NULL
&& longOptionStrcmp(&item->option, longName, longNameLen))
return 0;
else
if (shortName && shortName == item->option.shortName)
return 0;
}
if (con->aliases == NULL || con->numAliases <= 0)
return 0;
for (i = con->numAliases - 1; i >= 0; i--) {
item = con->aliases + i;
if (longName) {
if (item->option.longName == NULL)
continue;
if (!longOptionStrcmp(&item->option, longName, longNameLen))
continue;
} else if (shortName != item->option.shortName)
continue;
break;
}
if (i < 0) return 0;
if ((con->os - con->optionStack + 1) == con->optionDepth)
return POPT_ERROR_OPTSTOODEEP;
if (longName == NULL && nextArg != NULL && *nextArg != '\0')
con->os->nextCharArg = nextArg;
con->os++;
con->os->next = 0;
con->os->stuffed = 0;
con->os->nextArg = NULL;
con->os->nextCharArg = NULL;
con->os->currAlias = con->aliases + i;
{ const char ** av;
int ac = con->os->currAlias->argc;
/* Append --foo=bar arg to alias argv array (if present). */
if (longName && nextArg != NULL && *nextArg != '\0') {
av = (const char**) xmalloc((ac + 1 + 1) * sizeof(*av));
assert(av); /* XXX won't happen. */
if (av != NULL) {
for (i = 0; i < ac; i++) {
av[i] = con->os->currAlias->argv[i];
}
av[ac++] = nextArg;
av[ac] = NULL;
} else /* XXX revert to old popt behavior if malloc fails. */
av = con->os->currAlias->argv;
} else
av = con->os->currAlias->argv;
rc = poptDupArgv(ac, av, &con->os->argc, &con->os->argv);
if (av != NULL && av != con->os->currAlias->argv)
free(av);
}
con->os->argb = NULL;
return (rc ? rc : 1);
}
/**
* Return absolute path to executable by searching PATH.
* @param argv0 name of executable
* @return (malloc'd) absolute path to executable (or NULL)
*/
static /*@null@*/
const char * findProgramPath(/*@null@*/ const char * argv0)
/*@*/
{
char *path = NULL, *s = NULL, *se;
char *t = NULL;
assert(argv0); /* XXX can't happen */
if (argv0 == NULL) return NULL;
/* If there is a / in argv[0], it has to be an absolute path. */
/* XXX Hmmm, why not if (argv0[0] == '/') ... instead? */
if (strchr(argv0, '/'))
return xstrdup(argv0);
if ((path = getenv("PATH")) == NULL || (path = xstrdup(path)) == NULL)
return NULL;
/* The return buffer in t is big enough for any path. */
if ((t = (char*) xmalloc(strlen(path) + strlen(argv0) + sizeof("/"))) != NULL)
for (s = path; s && *s; s = se) {
/* Snip PATH element into [s,se). */
if ((se = strchr(s, ':')))
*se++ = '\0';
/* Append argv0 to PATH element. */
(void) stpcpy(stpcpy(stpcpy(t, s), "/"), argv0);
/* If file is executable, bingo! */
if (!access(t, X_OK))
break;
}
/* If no executable was found in PATH, return NULL. */
/*@-compdef@*/
if (!(s && *s) && t != NULL)
t = _free(t);
/*@=compdef@*/
/*@-modobserver -observertrans -usedef @*/
path = _free(path);
/*@=modobserver =observertrans =usedef @*/
return t;
}
static int execCommand(poptContext con)
/*@globals internalState @*/
/*@modifies internalState @*/
{
poptItem item = con->doExec;
poptArgv argv = NULL;
int argc = 0;
int ec = POPT_ERROR_ERRNO;
assert(item); /*XXX can't happen*/
if (item == NULL)
return POPT_ERROR_NOARG;
if (item->argv == NULL || item->argc < 1 ||
(!con->execAbsolute && strchr(item->argv[0], '/')))
return POPT_ERROR_NOARG;
argv = (poptArgv) xmalloc(sizeof(*argv) *
(6 + item->argc + con->numLeftovers + con->ac));
assert(argv); /* XXX can't happen */
if (argv == NULL) return POPT_ERROR_MALLOC;
if (!strchr(item->argv[0], '/') && con->execPath != NULL) {
char *s = (char*) xmalloc(strlen(con->execPath) + strlen(item->argv[0]) + sizeof("/"));
if (s)
(void)stpcpy(stpcpy(stpcpy(s, con->execPath), "/"), item->argv[0]);
argv[argc] = s;
} else
argv[argc] = findProgramPath(item->argv[0]);
if (argv[argc++] == NULL) {
ec = POPT_ERROR_NOARG;
goto exit;
}
if (item->argc > 1) {
memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
argc += (item->argc - 1);
}
if (con->av != NULL && con->ac > 0) {
memcpy(argv + argc, con->av, sizeof(*argv) * con->ac);
argc += con->ac;
}
if (con->leftovers != NULL && con->numLeftovers > 0) {
memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
argc += con->numLeftovers;
}
argv[argc] = NULL;
#if defined(hpux) || defined(__hpux)
{
int rc;
rc = setresgid(getgid(), getgid(),-1);
if (rc) goto exit;
rc = setresuid(getuid(), getuid(),-1);
if (rc) goto exit;
}
#else
/*
* XXX " ... on BSD systems setuid() should be preferred over setreuid()"
* XXX sez' Timur Bakeyev <[email protected]>
* XXX from Norbert Warmuth <[email protected]>
*/
#if defined(HAVE_SETUID)
{
int rc;
rc = setgid(getgid());
if (rc) goto exit;
rc = setuid(getuid());
if (rc) goto exit;
}
#elif defined (HAVE_SETREUID)
{
int rc;
rc = setregid(getgid(), getgid());
if (rc) goto exit;
rc = setreuid(getuid(), getuid());
if (rc) goto exit;
}
#else
; /* Can't drop privileges */
#endif
#endif
#ifdef MYDEBUG
if (_popt_debug)
{ poptArgv avp;
fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
for (avp = argv; *avp; avp++)
fprintf(stderr, " '%s'", *avp);
fprintf(stderr, "\n");
}
#endif
/*@-nullstate@*/
execvp(argv[0], (char *const *)argv);
/*@=nullstate@*/
exit:
if (argv) {
if (argv[0])
free((void *)argv[0]);
free(argv);
}
return ec;
}
/*@observer@*/ /*@null@*/
static const struct poptOption *
findOption(const struct poptOption * opt,
/*@null@*/ const char * longName, size_t longNameLen,
char shortName,
/*@null@*/ /*@out@*/ poptCallbackType * callback,
/*@null@*/ /*@out@*/ const void ** callbackData,
unsigned int argInfo)
/*@modifies *callback, *callbackData */
{
const struct poptOption * cb = NULL;
poptArg cbarg;
cbarg.ptr = NULL;
/* This happens when a single - is given */
if (LF_ISSET(ONEDASH) && !shortName && (longName && *longName == '\0'))
shortName = '-';
for (; opt->longName || opt->shortName || opt->arg; opt++) {
poptArg arg;
arg.ptr = opt->arg;
switch (poptArgType(opt)) {
case POPT_ARG_INCLUDE_TABLE: /* Recurse on included sub-tables. */
{ const struct poptOption * opt2;
poptSubstituteHelpI18N(arg.opt); /* XXX side effects */
if (arg.ptr == NULL) continue; /* XXX program error */
opt2 = findOption(arg.opt, longName, longNameLen, shortName, callback,
callbackData, argInfo);
if (opt2 == NULL) continue;
/* Sub-table data will be inheirited if no data yet. */
/*@-observertrans -dependenttrans @*/
if (callback && *callback
&& callbackData && *callbackData == NULL)
*callbackData = opt->descrip;
/*@=observertrans =dependenttrans @*/
return opt2;
} /*@notreached@*/ /*@switchbreak@*/ break;
case POPT_ARG_CALLBACK:
cb = opt;
cbarg.ptr = opt->arg;
continue;
/*@notreached@*/ /*@switchbreak@*/ break;
default:
/*@switchbreak@*/ break;
}
if (longName != NULL && opt->longName != NULL &&
(!LF_ISSET(ONEDASH) || F_ISSET(opt, ONEDASH)) &&
longOptionStrcmp(opt, longName, longNameLen))
{
break;
} else if (shortName && shortName == opt->shortName) {
break;
}
}
if (opt->longName == NULL && !opt->shortName)
return NULL;
/*@-modobserver -mods @*/
if (callback)
*callback = (cb ? cbarg.cb : NULL);
if (callbackData)
/*@-observertrans -dependenttrans @*/
*callbackData = (cb && !CBF_ISSET(cb, INC_DATA) ? cb->descrip : NULL);
/*@=observertrans =dependenttrans @*/
/*@=modobserver =mods @*/
return opt;
}
static const char * findNextArg(/*@special@*/ poptContext con,
unsigned argx, int delete_arg)
/*@uses con->optionStack, con->os,
con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
/*@modifies con @*/
{
struct optionStackEntry * os = con->os;
const char * arg;
do {
int i;
arg = NULL;
while (os->next == os->argc && os > con->optionStack) os--;
if (os->next == os->argc && os == con->optionStack) break;
if (os->argv != NULL)
for (i = os->next; i < os->argc; i++) {
/*@-sizeoftype@*/
if (os->argb && PBM_ISSET(i, os->argb))
/*@innercontinue@*/ continue;
if (*os->argv[i] == '-')
/*@innercontinue@*/ continue;
if (--argx > 0)
/*@innercontinue@*/ continue;
arg = os->argv[i];
if (delete_arg) {
if (os->argb == NULL) os->argb = PBM_ALLOC(os->argc);
assert(os->argb); /* XXX can't happen */
if (os->argb != NULL)
PBM_SET(i, os->argb);
}
/*@innerbreak@*/ break;
/*@=sizeoftype@*/
}
if (os > con->optionStack) os--;
} while (arg == NULL);
return arg;
}
static /*@only@*/ /*@null@*/ const char *
expandNextArg(/*@special@*/ poptContext con, const char * s)
/*@uses con->optionStack, con->os,
con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
/*@modifies con @*/
{
const char * a = NULL;
char *t, *te;
size_t tn = strlen(s) + 1;
char c;
te = t = (char*) xmalloc(tn);
assert(t); /* XXX can't happen */
if (t == NULL) return NULL;
*t = '\0';
while ((c = *s++) != '\0') {
switch (c) {
#if 0 /* XXX can't do this */
case '\\': /* escape */
c = *s++;
/*@switchbreak@*/ break;
#endif
case '!':
if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
/*@switchbreak@*/ break;
/* XXX Make sure that findNextArg deletes only next arg. */
if (a == NULL) {
if ((a = findNextArg(con, 1U, 1)) == NULL)
/*@switchbreak@*/ break;
}
s += sizeof("#:+") - 1;
tn += strlen(a);
{ size_t pos = (size_t) (te - t);
/* cppcheck-suppress memleakOnRealloc */
t = (char*) xrealloc(t, tn);
assert(t); /* XXX can't happen */
if (t == NULL)
return NULL;
te = stpcpy(t + pos, a);
}
continue;
/*@notreached@*/ /*@switchbreak@*/ break;
default:
/*@switchbreak@*/ break;
}
*te++ = c;
}
*te++ = '\0';
/* If the new string is longer than needed, shorten. */
if ((t + tn) > te) {
/*@-usereleased@*/ /* XXX splint can't follow the pointers. */
if ((te = (char*) xrealloc(t, (size_t)(te - t))) == NULL)
free(t);
t = te;
/*@=usereleased@*/
}
return t;
}
static void poptStripArg(/*@special@*/ poptContext con, int which)
/*@uses con->optionStack @*/
/*@defines con->arg_strip @*/
/*@modifies con @*/
{
/*@-compdef -sizeoftype -usedef @*/
if (con->arg_strip == NULL)
con->arg_strip = PBM_ALLOC(con->optionStack[0].argc);
assert(con->arg_strip); /* XXX can't happen */
if (con->arg_strip != NULL)
PBM_SET(which, con->arg_strip);
return;
/*@=compdef =sizeoftype =usedef @*/
}
/*@unchecked@*/
unsigned int _poptBitsN = _POPT_BITS_N;
/*@unchecked@*/
unsigned int _poptBitsM = _POPT_BITS_M;
/*@unchecked@*/
unsigned int _poptBitsK = _POPT_BITS_K;
/*@-sizeoftype@*/
static int _poptBitsNew(/*@null@*/ poptBits *bitsp)
/*@globals _poptBitsN, _poptBitsM, _poptBitsK @*/
/*@modifies *bitsp, _poptBitsN, _poptBitsM, _poptBitsK @*/
{
if (bitsp == NULL)
return POPT_ERROR_NULLARG;
/* XXX handle negated initialization. */
if (*bitsp == NULL) {
if (_poptBitsN == 0) {
_poptBitsN = _POPT_BITS_N;
_poptBitsM = _POPT_BITS_M;
}
if (_poptBitsM == 0U) _poptBitsM = (3 * _poptBitsN) / 2;
if (_poptBitsK == 0U || _poptBitsK > 32U) _poptBitsK = _POPT_BITS_K;
*bitsp = PBM_ALLOC(_poptBitsM-1);
}
/*@-nullstate@*/
return 0;
/*@=nullstate@*/
}
int poptBitsAdd(poptBits bits, const char * s)
{
size_t ns = (s ? strlen(s) : 0);
uint32_t h0 = 0;
uint32_t h1 = 0;
if (bits == NULL || ns == 0)
return POPT_ERROR_NULLARG;
poptJlu32lpair(s, ns, &h0, &h1);
for (ns = 0; ns < (size_t)_poptBitsK; ns++) {
uint32_t h = h0 + ns * h1;
uint32_t ix = (h % _poptBitsM);
PBM_SET(ix, bits);
}
return 0;
}
int poptBitsChk(poptBits bits, const char * s)
{
size_t ns = (s ? strlen(s) : 0);
uint32_t h0 = 0;
uint32_t h1 = 0;
int rc = 1;
if (bits == NULL || ns == 0)
return POPT_ERROR_NULLARG;
poptJlu32lpair(s, ns, &h0, &h1);
for (ns = 0; ns < (size_t)_poptBitsK; ns++) {
uint32_t h = h0 + ns * h1;
uint32_t ix = (h % _poptBitsM);
if (PBM_ISSET(ix, bits))
continue;
rc = 0;
break;
}
return rc;
}
int poptBitsClr(poptBits bits)
{
static size_t nbw = (__PBM_NBITS/8);
size_t nw = (__PBM_IX(_poptBitsM-1) + 1);
if (bits == NULL)
return POPT_ERROR_NULLARG;
memset(bits, 0, nw * nbw);
return 0;
}
int poptBitsDel(poptBits bits, const char * s)
{
size_t ns = (s ? strlen(s) : 0);
uint32_t h0 = 0;
uint32_t h1 = 0;
if (bits == NULL || ns == 0)
return POPT_ERROR_NULLARG;
poptJlu32lpair(s, ns, &h0, &h1);
for (ns = 0; ns < (size_t)_poptBitsK; ns++) {
uint32_t h = h0 + ns * h1;
uint32_t ix = (h % _poptBitsM);
PBM_CLR(ix, bits);
}
return 0;
}
int poptBitsIntersect(poptBits *ap, const poptBits b)
{
__pbm_bits *abits;
__pbm_bits *bbits;
__pbm_bits rc = 0;
size_t nw = (__PBM_IX(_poptBitsM-1) + 1);
size_t i;
if (ap == NULL || b == NULL || _poptBitsNew(ap))
return POPT_ERROR_NULLARG;
abits = __PBM_BITS(*ap);
bbits = __PBM_BITS(b);
for (i = 0; i < nw; i++) {
abits[i] &= bbits[i];
rc |= abits[i];
}
return (rc ? 1 : 0);
}
int poptBitsUnion(poptBits *ap, const poptBits b)
{
__pbm_bits *abits;
__pbm_bits *bbits;
__pbm_bits rc = 0;
size_t nw = (__PBM_IX(_poptBitsM-1) + 1);
size_t i;
if (ap == NULL || b == NULL || _poptBitsNew(ap))
return POPT_ERROR_NULLARG;
abits = __PBM_BITS(*ap);
bbits = __PBM_BITS(b);
for (i = 0; i < nw; i++) {
abits[i] |= bbits[i];
rc |= abits[i];
}
return (rc ? 1 : 0);
}
int poptBitsArgs(poptContext con, poptBits *ap)
{
const char ** av;
int rc = 0;
if (con == NULL || ap == NULL || _poptBitsNew(ap) ||
con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
return POPT_ERROR_NULLARG;
/* some apps like [like RPM ;-) ] need this NULL terminated */
con->leftovers[con->numLeftovers] = NULL;
for (av = con->leftovers + con->nextLeftover; *av != NULL; av++) {
if ((rc = poptBitsAdd(*ap, *av)) != 0)
break;
}
/*@-nullstate@*/
return rc;
/*@=nullstate@*/
}
int poptSaveBits(poptBits * bitsp,
/*@unused@*/ UNUSED(unsigned int argInfo), const char * s)
{
char *tbuf = NULL;
char *t, *te;
int rc = 0;
if (bitsp == NULL || s == NULL || *s == '\0' || _poptBitsNew(bitsp))
return POPT_ERROR_NULLARG;
/* Parse comma separated attributes. */
te = tbuf = xstrdup(s);
assert(te);
while ((t = te) != NULL && *t) {
while (*te != '\0' && *te != ',')
te++;
if (*te != '\0')
*te++ = '\0';
/* XXX Ignore empty strings. */
if (*t == '\0')
continue;
/* XXX Permit negated attributes. caveat emptor: false negatives. */
if (*t == '!') {
t++;
if ((rc = poptBitsChk(*bitsp, t)) > 0)
rc = poptBitsDel(*bitsp, t);
} else
rc = poptBitsAdd(*bitsp, t);
if (rc)
break;
}
tbuf = _free(tbuf);
return rc;
}
/*@=sizeoftype@*/