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simplesshd/rsync/popt/popt.c
Greg Alexander d8cc8daef9 rsync 3.1.1 source, after i trimmed away the parts we obviously won't 
need...but most of it remains.
2014-12-21 17:56:03 -05:00

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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 HAVE_FLOAT_H
#include <float.h>
#endif
#include <math.h>
#include "findme.h"
#include "poptint.h"
#ifndef DBL_EPSILON
#define DBL_EPSILON 2.2204460492503131e-16
#endif
#ifdef MYDEBUG
/*@unchecked@*/
int _popt_debug = 0;
#endif
#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;
/*@-nullstate@*/ /* LCL: con->execPath not NULL */
return;
/*@=nullstate@*/
}
static void invokeCallbacksPRE(poptContext con, const struct poptOption * opt)
/*@globals internalState@*/
/*@modifies internalState@*/
{
if (opt != NULL)
for (; opt->longName || opt->shortName || opt->arg; opt++) {
if (opt->arg == NULL) continue; /* XXX program error. */
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
void * arg = opt->arg;
/*@-branchstate@*/
/* XXX sick hack to preserve pretense of ABI. */
if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
/*@=branchstate@*/
/* Recurse on included sub-tables. */
invokeCallbacksPRE(con, arg);
} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
(opt->argInfo & POPT_CBFLAG_PRE))
{ /*@-castfcnptr@*/
poptCallbackType cb = (poptCallbackType)opt->arg;
/*@=castfcnptr@*/
/* Perform callback. */
/*@-noeffectuncon @*/
cb(con, POPT_CALLBACK_REASON_PRE, NULL, NULL, opt->descrip);
/*@=noeffectuncon @*/
}
}
}
static void invokeCallbacksPOST(poptContext con, const struct poptOption * opt)
/*@globals internalState@*/
/*@modifies internalState@*/
{
if (opt != NULL)
for (; opt->longName || opt->shortName || opt->arg; opt++) {
if (opt->arg == NULL) continue; /* XXX program error. */
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
void * arg = opt->arg;
/*@-branchstate@*/
/* XXX sick hack to preserve pretense of ABI. */
if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
/*@=branchstate@*/
/* Recurse on included sub-tables. */
invokeCallbacksPOST(con, arg);
} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
(opt->argInfo & POPT_CBFLAG_POST))
{ /*@-castfcnptr@*/
poptCallbackType cb = (poptCallbackType)opt->arg;
/*@=castfcnptr@*/
/* Perform callback. */
/*@-noeffectuncon @*/
cb(con, POPT_CALLBACK_REASON_POST, NULL, NULL, opt->descrip);
/*@=noeffectuncon @*/
}
}
}
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;
if (opt != NULL)
for (; opt->longName || opt->shortName || opt->arg; opt++) {
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
void * arg = opt->arg;
/*@-branchstate@*/
/* XXX sick hack to preserve pretense of ABI. */
if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
/*@=branchstate@*/
/* Recurse on included sub-tables. */
if (opt->arg != NULL) /* XXX program error */
invokeCallbacksOPTION(con, opt->arg, myOpt, myData, shorty);
} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
!(opt->argInfo & POPT_CBFLAG_SKIPOPTION)) {
/* Save callback info. */
cbopt = opt;
} else if (cbopt != NULL &&
((myOpt->shortName && opt->shortName && shorty &&
myOpt->shortName == opt->shortName) ||
(myOpt->longName && opt->longName &&
/*@-nullpass@*/ /* LCL: opt->longName != NULL */
!strcmp(myOpt->longName, opt->longName)))
/*@=nullpass@*/
)
{ /*@-castfcnptr@*/
poptCallbackType cb = (poptCallbackType)cbopt->arg;
/*@=castfcnptr@*/
const void * cbData = (cbopt->descrip ? cbopt->descrip : myData);
/* Perform callback. */
if (cb != NULL) { /* XXX program error */
/*@-noeffectuncon @*/
cb(con, POPT_CALLBACK_REASON_OPTION, myOpt,
con->os->nextArg, cbData);
/*@=noeffectuncon @*/
}
/* Terminate (unless explcitly continuing). */
if (!(cbopt->argInfo & POPT_CBFLAG_CONTINUE))
return;
}
}
}
poptContext poptGetContext(const char * name, int argc, const char ** argv,
const struct poptOption * options, int flags)
{
poptContext con = malloc(sizeof(*con));
if (con == NULL) return NULL; /* XXX can't happen */
memset(con, 0, sizeof(*con));
con->os = con->optionStack;
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 = calloc( (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->finalArgvAlloced = argc * 2;
con->finalArgv = calloc( con->finalArgvAlloced, sizeof(*con->finalArgv) );
con->execAbsolute = 1;
con->arg_strip = NULL;
if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
con->flags |= POPT_CONTEXT_POSIXMEHARDER;
if (name) {
size_t bufsize = strlen(name) + 1;
char * t = malloc(bufsize);
if (t) {
strlcpy(t, name, bufsize);
con->appName = t;
}
}
/*@-internalglobs@*/
invokeCallbacksPRE(con, con->options);
/*@=internalglobs@*/
return con;
}
static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
/*@uses os @*/
/*@releases os->nextArg, os->argv, os->argb @*/
/*@modifies os @*/
{
os->nextArg = _free(os->nextArg);
os->argv = _free(os->argv);
os->argb = PBM_FREE(os->argb);
}
/*@-boundswrite@*/
void poptResetContext(poptContext con)
{
int i;
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->finalArgv != NULL)
for (i = 0; i < con->finalArgvCount; i++) {
/*@-unqualifiedtrans@*/ /* FIX: typedef double indirection. */
con->finalArgv[i] = _free(con->finalArgv[i]);
/*@=unqualifiedtrans@*/
}
con->finalArgvCount = 0;
con->arg_strip = PBM_FREE(con->arg_strip);
/*@-nullstate@*/ /* FIX: con->finalArgv != NULL */
return;
/*@=nullstate@*/
}
/*@=boundswrite@*/
/* Only one of longName, shortName should be set, not both. */
/*@-boundswrite@*/
static int handleExec(/*@special@*/ poptContext con,
/*@null@*/ const char * longName, char shortName)
/*@uses con->execs, con->numExecs, con->flags, con->doExec,
con->finalArgv, con->finalArgvAlloced, con->finalArgvCount @*/
/*@modifies con @*/
{
poptItem item;
int i;
if (con->execs == NULL || con->numExecs <= 0) /* XXX can't happen */
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->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
con->finalArgvAlloced += 10;
con->finalArgv = realloc(con->finalArgv,
sizeof(*con->finalArgv) * con->finalArgvAlloced);
}
i = con->finalArgvCount++;
if (con->finalArgv != NULL) /* XXX can't happen */
{ size_t bufsize = (longName ? strlen(longName) : 0) + 3;
char *s = malloc(bufsize);
if (s != NULL) { /* XXX can't happen */
if (longName)
snprintf(s, bufsize, "--%s", longName);
else
snprintf(s, bufsize, "-%c", shortName);
con->finalArgv[i] = s;
} else
con->finalArgv[i] = NULL;
}
/*@-nullstate@*/ /* FIX: con->finalArgv[] == NULL */
return 1;
/*@=nullstate@*/
}
/*@=boundswrite@*/
/* Only one of longName, shortName may be set at a time */
static int handleAlias(/*@special@*/ poptContext con,
/*@null@*/ const char * longName, char shortName,
/*@exposed@*/ /*@null@*/ const char * nextCharArg)
/*@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 &&
!strcmp(longName, item->option.longName)))
return 0;
if (shortName && shortName == item->option.shortName)
return 0;
}
if (con->aliases == NULL || con->numAliases <= 0) /* XXX can't happen */
return 0;
for (i = con->numAliases - 1; i >= 0; i--) {
item = con->aliases + 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->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
return POPT_ERROR_OPTSTOODEEP;
/*@-boundsread@*/
if (nextCharArg && *nextCharArg)
con->os->nextCharArg = nextCharArg;
/*@=boundsread@*/
con->os++;
con->os->next = 0;
con->os->stuffed = 0;
con->os->nextArg = NULL;
con->os->nextCharArg = NULL;
con->os->currAlias = con->aliases + i;
rc = poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
&con->os->argc, &con->os->argv);
con->os->argb = NULL;
return (rc ? rc : 1);
}
/*@-bounds -boundswrite @*/
static int execCommand(poptContext con)
/*@globals internalState @*/
/*@modifies internalState @*/
{
poptItem item = con->doExec;
const char ** argv;
int argc = 0;
if (item == NULL) /*XXX can't happen*/
return POPT_ERROR_NOARG;
if (item->argv == NULL || item->argc < 1 ||
(!con->execAbsolute && strchr(item->argv[0], '/')))
return POPT_ERROR_NOARG;
argv = malloc(sizeof(*argv) *
(6 + item->argc + con->numLeftovers + con->finalArgvCount));
if (argv == NULL) return POPT_ERROR_MALLOC;
if (!strchr(item->argv[0], '/') && con->execPath != NULL) {
size_t bufsize = strlen(con->execPath) + strlen(item->argv[0]) + sizeof "/";
char *s = alloca(bufsize);
snprintf(s, bufsize, "%s/%s", con->execPath, item->argv[0]);
argv[argc] = s;
} else
argv[argc] = findProgramPath(item->argv[0]);
if (argv[argc++] == NULL) return POPT_ERROR_NOARG;
if (item->argc > 1) {
memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
argc += (item->argc - 1);
}
if (con->finalArgv != NULL && con->finalArgvCount > 0) {
memcpy(argv + argc, con->finalArgv,
sizeof(*argv) * con->finalArgvCount);
argc += con->finalArgvCount;
}
if (con->leftovers != NULL && con->numLeftovers > 0) {
memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
argc += con->numLeftovers;
}
argv[argc] = NULL;
{
#ifdef __hpux
int rc = setresgid(getgid(), getgid(),-1);
if (rc) return POPT_ERROR_ERRNO;
rc = setresuid(getuid(), getuid(),-1);
if (rc) return POPT_ERROR_ERRNO;
#else
/*
* XXX " ... on BSD systems setuid() should be preferred over setreuid()"
* XXX sez' Timur Bakeyev <mc@bat.ru>
* XXX from Norbert Warmuth <nwarmuth@privat.circular.de>
*/
#if defined(HAVE_SETUID)
int rc = setgid(getgid());
if (rc) return POPT_ERROR_ERRNO;
rc = setuid(getuid());
if (rc) return POPT_ERROR_ERRNO;
#elif defined (HAVE_SETREUID)
int rc = setregid(getgid(), getgid());
if (rc) return POPT_ERROR_ERRNO;
rc = setreuid(getuid(), getuid());
if (rc) return POPT_ERROR_ERRNO;
#else
; /* Can't drop privileges */
#endif
#endif
}
if (argv[0] == NULL)
return POPT_ERROR_NOARG;
#ifdef MYDEBUG
if (_popt_debug)
{ const char ** avp;
fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
for (avp = argv; *avp; avp++)
fprintf(stderr, " '%s'", *avp);
fprintf(stderr, "\n");
}
#endif
execvp(argv[0], (char *const *)argv);
return POPT_ERROR_ERRNO;
}
/*@=bounds =boundswrite @*/
/*@-boundswrite@*/
/*@observer@*/ /*@null@*/ static const struct poptOption *
findOption(const struct poptOption * opt, /*@null@*/ const char * longName,
char shortName,
/*@null@*/ /*@out@*/ poptCallbackType * callback,
/*@null@*/ /*@out@*/ const void ** callbackData,
int singleDash)
/*@modifies *callback, *callbackData */
{
const struct poptOption * cb = NULL;
/* This happens when a single - is given */
if (singleDash && !shortName && (longName && *longName == '\0'))
shortName = '-';
for (; opt->longName || opt->shortName || opt->arg; opt++) {
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
const struct poptOption * opt2;
void * arg = opt->arg;
/*@-branchstate@*/
/* XXX sick hack to preserve pretense of ABI. */
if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
/*@=branchstate@*/
/* Recurse on included sub-tables. */
if (arg == NULL) continue; /* XXX program error */
opt2 = findOption(arg, longName, shortName, callback,
callbackData, singleDash);
if (opt2 == NULL) continue;
/* Sub-table data will be inheirited if no data yet. */
if (!(callback && *callback)) return opt2;
if (!(callbackData && *callbackData == NULL)) return opt2;
/*@-observertrans -dependenttrans @*/
*callbackData = opt->descrip;
/*@=observertrans =dependenttrans @*/
return opt2;
} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
cb = opt;
} else if (longName && opt->longName &&
(!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
/*@-nullpass@*/ /* LCL: opt->longName != NULL */
!strcmp(longName, opt->longName))
/*@=nullpass@*/
{
break;
} else if (shortName && shortName == opt->shortName) {
break;
}
}
if (!opt->longName && !opt->shortName)
return NULL;
/*@-modobserver -mods @*/
if (callback) *callback = NULL;
if (callbackData) *callbackData = NULL;
if (cb) {
if (callback)
/*@-castfcnptr@*/
*callback = (poptCallbackType)cb->arg;
/*@=castfcnptr@*/
if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) {
if (callbackData)
/*@-observertrans@*/ /* FIX: typedef double indirection. */
*callbackData = cb->descrip;
/*@=observertrans@*/
}
}
/*@=modobserver =mods @*/
return opt;
}
/*@=boundswrite@*/
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);
if (os->argb != NULL) /* XXX can't happen */
PBM_SET(i, os->argb);
}
/*@innerbreak@*/ break;
/*@=sizeoftype@*/
}
if (os > con->optionStack) os--;
} while (arg == NULL);
return arg;
}
/*@-boundswrite@*/
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;
size_t alen, pos;
char *t, *te;
size_t tn = strlen(s) + 1;
char c;
te = t = malloc(tn);;
if (t == NULL) return NULL; /* XXX can't happen */
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, 1, 1)) == NULL)
/*@switchbreak@*/ break;
}
s += 3;
alen = strlen(a);
tn += alen;
pos = te - t;
t = realloc(t, tn);
te = t + pos;
strncpy(te, a, alen); te += alen;
continue;
/*@notreached@*/ /*@switchbreak@*/ break;
default:
/*@switchbreak@*/ break;
}
*te++ = c;
}
*te = '\0';
t = realloc(t, strlen(t) + 1); /* XXX memory leak, hard to plug */
return t;
}
/*@=boundswrite@*/
static void poptStripArg(/*@special@*/ poptContext con, int which)
/*@uses con->arg_strip, con->optionStack @*/
/*@defines con->arg_strip @*/
/*@modifies con @*/
{
/*@-sizeoftype@*/
if (con->arg_strip == NULL)
con->arg_strip = PBM_ALLOC(con->optionStack[0].argc);
if (con->arg_strip != NULL) /* XXX can't happen */
PBM_SET(which, con->arg_strip);
/*@=sizeoftype@*/
/*@-compdef@*/ /* LCL: con->arg_strip udefined? */
return;
/*@=compdef@*/
}
int poptSaveLong(long * arg, int argInfo, long aLong)
{
/* XXX Check alignment, may fail on funky platforms. */
if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
return POPT_ERROR_NULLARG;
if (argInfo & POPT_ARGFLAG_NOT)
aLong = ~aLong;
switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
case 0:
*arg = aLong;
break;
case POPT_ARGFLAG_OR:
*arg |= aLong;
break;
case POPT_ARGFLAG_AND:
*arg &= aLong;
break;
case POPT_ARGFLAG_XOR:
*arg ^= aLong;
break;
default:
return POPT_ERROR_BADOPERATION;
/*@notreached@*/ break;
}
return 0;
}
int poptSaveInt(/*@null@*/ int * arg, int argInfo, long aLong)
{
/* XXX Check alignment, may fail on funky platforms. */
if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
return POPT_ERROR_NULLARG;
if (argInfo & POPT_ARGFLAG_NOT)
aLong = ~aLong;
switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
case 0:
*arg = aLong;
break;
case POPT_ARGFLAG_OR:
*arg |= aLong;
break;
case POPT_ARGFLAG_AND:
*arg &= aLong;
break;
case POPT_ARGFLAG_XOR:
*arg ^= aLong;
break;
default:
return POPT_ERROR_BADOPERATION;
/*@notreached@*/ break;
}
return 0;
}
/*@-boundswrite@*/
/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
int poptGetNextOpt(poptContext con)
{
const struct poptOption * opt = NULL;
int done = 0;
if (con == NULL)
return -1;
while (!done) {
const char * origOptString = NULL;
poptCallbackType cb = NULL;
const void * cbData = NULL;
const char * longArg = NULL;
int canstrip = 0;
int shorty = 0;
while (!con->os->nextCharArg && con->os->next == con->os->argc
&& con->os > con->optionStack) {
cleanOSE(con->os--);
}
if (!con->os->nextCharArg && con->os->next == con->os->argc) {
/*@-internalglobs@*/
invokeCallbacksPOST(con, con->options);
/*@=internalglobs@*/
if (con->doExec) return execCommand(con);
return -1;
}
/* Process next long option */
if (!con->os->nextCharArg) {
char * localOptString, * optString;
int thisopt;
/*@-sizeoftype@*/
if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
con->os->next++;
continue;
}
/*@=sizeoftype@*/
thisopt = con->os->next;
if (con->os->argv != NULL) /* XXX can't happen */
origOptString = con->os->argv[con->os->next++];
if (origOptString == NULL) /* XXX can't happen */
return POPT_ERROR_BADOPT;
if (con->restLeftover || *origOptString != '-') {
if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
con->restLeftover = 1;
if (con->flags & POPT_CONTEXT_ARG_OPTS) {
con->os->nextArg = xstrdup(origOptString);
return 0;
}
if (con->leftovers != NULL) /* XXX can't happen */
con->leftovers[con->numLeftovers++] = origOptString;
continue;
}
/* Make a copy we can hack at */
{ size_t bufsize = strlen(origOptString) + 1;
localOptString = optString = alloca(bufsize);
if (optString == NULL) /* XXX can't happen */
return POPT_ERROR_BADOPT;
strlcpy(optString, origOptString, bufsize);
}
if (optString[0] == '\0')
return POPT_ERROR_BADOPT;
if (optString[1] == '-' && !optString[2]) {
con->restLeftover = 1;
continue;
} else {
char *oe;
int singleDash;
optString++;
if (*optString == '-')
singleDash = 0, optString++;
else
singleDash = 1;
/* XXX aliases with arg substitution need "--alias=arg" */
if (handleAlias(con, optString, '\0', NULL))
continue;
if (handleExec(con, optString, '\0'))
continue;
/* Check for "--long=arg" option. */
for (oe = optString; *oe && *oe != '='; oe++)
{};
if (*oe == '=') {
*oe++ = '\0';
/* XXX longArg is mapped back to persistent storage. */
longArg = origOptString + (oe - localOptString);
} else
oe = NULL;
opt = findOption(con->options, optString, '\0', &cb, &cbData,
singleDash);
if (!opt && !singleDash)
return POPT_ERROR_BADOPT;
if (!opt && oe)
oe[-1] = '='; /* restore overwritten '=' */
}
if (!opt) {
con->os->nextCharArg = origOptString + 1;
longArg = NULL;
} else {
if (con->os == con->optionStack &&
opt->argInfo & POPT_ARGFLAG_STRIP)
{
canstrip = 1;
poptStripArg(con, thisopt);
}
shorty = 0;
}
}
/* Process next short option */
/*@-branchstate@*/ /* FIX: W2DO? */
if (con->os->nextCharArg) {
origOptString = con->os->nextCharArg;
con->os->nextCharArg = NULL;
if (handleAlias(con, NULL, *origOptString, origOptString + 1))
continue;
if (handleExec(con, NULL, *origOptString)) {
/* Restore rest of short options for further processing */
origOptString++;
if (*origOptString != '\0')
con->os->nextCharArg = origOptString;
continue;
}
opt = findOption(con->options, NULL, *origOptString, &cb,
&cbData, 0);
if (!opt)
return POPT_ERROR_BADOPT;
shorty = 1;
origOptString++;
if (*origOptString != '\0')
con->os->nextCharArg = origOptString;
}
/*@=branchstate@*/
if (opt == NULL) return POPT_ERROR_BADOPT; /* XXX can't happen */
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE
|| (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
if (longArg || (con->os->nextCharArg && con->os->nextCharArg[0] == '='))
return POPT_ERROR_UNWANTEDARG;
if (opt->arg) {
long val = (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL ? opt->val : 1;
if (poptSaveInt((int *)opt->arg, opt->argInfo, val))
return POPT_ERROR_BADOPERATION;
}
} else {
con->os->nextArg = _free(con->os->nextArg);
/*@-usedef@*/ /* FIX: W2DO? */
if (longArg) {
/*@=usedef@*/
longArg = expandNextArg(con, longArg);
con->os->nextArg = longArg;
} else if (con->os->nextCharArg) {
longArg = expandNextArg(con, con->os->nextCharArg + (con->os->nextCharArg[0] == '='));
con->os->nextArg = longArg;
con->os->nextCharArg = NULL;
} else {
while (con->os->next == con->os->argc &&
con->os > con->optionStack) {
cleanOSE(con->os--);
}
if (con->os->next == con->os->argc) {
if (!(opt->argInfo & POPT_ARGFLAG_OPTIONAL))
/*@-compdef@*/ /* FIX: con->os->argv not defined */
return POPT_ERROR_NOARG;
/*@=compdef@*/
con->os->nextArg = NULL;
} else {
/*
* Make sure this isn't part of a short arg or the
* result of an alias expansion.
*/
if (con->os == con->optionStack &&
(opt->argInfo & POPT_ARGFLAG_STRIP) &&
canstrip) {
poptStripArg(con, con->os->next);
}
if (con->os->argv != NULL) { /* XXX can't happen */
/* XXX watchout: subtle side-effects live here. */
longArg = con->os->argv[con->os->next++];
longArg = expandNextArg(con, longArg);
con->os->nextArg = longArg;
}
}
}
longArg = NULL;
if (opt->arg) {
switch (opt->argInfo & POPT_ARG_MASK) {
case POPT_ARG_STRING:
/* XXX memory leak, hard to plug */
*((const char **) opt->arg) = (con->os->nextArg)
? xstrdup(con->os->nextArg) : NULL;
/*@switchbreak@*/ break;
case POPT_ARG_INT:
case POPT_ARG_LONG:
{ long aLong = 0;
char *end;
if (con->os->nextArg) {
aLong = strtol(con->os->nextArg, &end, 0);
if (!(end && *end == '\0'))
return POPT_ERROR_BADNUMBER;
}
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
if (aLong == LONG_MIN || aLong == LONG_MAX)
return POPT_ERROR_OVERFLOW;
if (poptSaveLong((long *)opt->arg, opt->argInfo, aLong))
return POPT_ERROR_BADOPERATION;
} else {
if (aLong > INT_MAX || aLong < INT_MIN)
return POPT_ERROR_OVERFLOW;
if (poptSaveInt((int *)opt->arg, opt->argInfo, aLong))
return POPT_ERROR_BADOPERATION;
}
} /*@switchbreak@*/ break;
case POPT_ARG_FLOAT:
case POPT_ARG_DOUBLE:
{ double aDouble = 0.0;
char *end;
if (con->os->nextArg) {
/*@-mods@*/
int saveerrno = errno;
errno = 0;
aDouble = strtod(con->os->nextArg, &end);
if (errno == ERANGE)
return POPT_ERROR_OVERFLOW;
errno = saveerrno;
/*@=mods@*/
if (*end != '\0')
return POPT_ERROR_BADNUMBER;
}
if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_DOUBLE) {
*((double *) opt->arg) = aDouble;
} else {
#define MY_ABS(a) ((((a) - 0.0) < DBL_EPSILON) ? -(a) : (a))
if ((MY_ABS(aDouble) - FLT_MAX) > DBL_EPSILON)
return POPT_ERROR_OVERFLOW;
if ((FLT_MIN - MY_ABS(aDouble)) > DBL_EPSILON)
return POPT_ERROR_OVERFLOW;
*((float *) opt->arg) = aDouble;
}
} /*@switchbreak@*/ break;
default:
fprintf(stdout,
POPT_("option type (%d) not implemented in popt\n"),
(opt->argInfo & POPT_ARG_MASK));
exit(EXIT_FAILURE);
/*@notreached@*/ /*@switchbreak@*/ break;
}
}
}
if (cb) {
/*@-internalglobs@*/
invokeCallbacksOPTION(con, con->options, opt, cbData, shorty);
/*@=internalglobs@*/
} else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
done = 1;
if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
con->finalArgvAlloced += 10;
con->finalArgv = realloc(con->finalArgv,
sizeof(*con->finalArgv) * con->finalArgvAlloced);
}
if (con->finalArgv != NULL)
{ ssize_t bufsize = (opt->longName ? strlen(opt->longName) : 0) + 3;
char *s = malloc(bufsize);
if (s != NULL) { /* XXX can't happen */
if (opt->longName)
snprintf(s, bufsize, "%s%s",
((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
opt->longName);
else
snprintf(s, bufsize, "-%c", opt->shortName);
con->finalArgv[con->finalArgvCount++] = s;
} else
con->finalArgv[con->finalArgvCount++] = NULL;
}
if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE)
/*@-ifempty@*/ ; /*@=ifempty@*/
else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL)
/*@-ifempty@*/ ; /*@=ifempty@*/
else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
if (con->finalArgv != NULL && con->os->nextArg)
con->finalArgv[con->finalArgvCount++] =
/*@-nullpass@*/ /* LCL: con->os->nextArg != NULL */
xstrdup(con->os->nextArg);
/*@=nullpass@*/
}
}
return (opt ? opt->val : -1); /* XXX can't happen */
}
/*@=boundswrite@*/
const char * poptGetOptArg(poptContext con)
{
const char * ret = NULL;
/*@-branchstate@*/
if (con) {
ret = con->os->nextArg;
con->os->nextArg = NULL;
}
/*@=branchstate@*/
return ret;
}
const char * poptGetArg(poptContext con)
{
const char * ret = NULL;
if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
ret = con->leftovers[con->nextLeftover++];
return ret;
}
const char * poptPeekArg(poptContext con)
{
const char * ret = NULL;
if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
ret = con->leftovers[con->nextLeftover];
return ret;
}
/*@-boundswrite@*/
const char ** poptGetArgs(poptContext con)
{
if (con == NULL ||
con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
return NULL;
/* some apps like [like RPM ;-) ] need this NULL terminated */
con->leftovers[con->numLeftovers] = NULL;
/*@-nullret -nullstate @*/ /* FIX: typedef double indirection. */
return (con->leftovers + con->nextLeftover);
/*@=nullret =nullstate @*/
}
/*@=boundswrite@*/
poptContext poptFreeContext(poptContext con)
{
poptItem item;
int i;
if (con == NULL) return con;
poptResetContext(con);
con->os->argb = _free(con->os->argb);
if (con->aliases != NULL)
for (i = 0; i < con->numAliases; i++) {
item = con->aliases + i;
/*@-modobserver -observertrans -dependenttrans@*/
item->option.longName = _free(item->option.longName);
item->option.descrip = _free(item->option.descrip);
item->option.argDescrip = _free(item->option.argDescrip);
/*@=modobserver =observertrans =dependenttrans@*/
item->argv = _free(item->argv);
}
con->aliases = _free(con->aliases);
if (con->execs != NULL)
for (i = 0; i < con->numExecs; i++) {
item = con->execs + i;
/*@-modobserver -observertrans -dependenttrans@*/
item->option.longName = _free(item->option.longName);
item->option.descrip = _free(item->option.descrip);
item->option.argDescrip = _free(item->option.argDescrip);
/*@=modobserver =observertrans =dependenttrans@*/
item->argv = _free(item->argv);
}
con->execs = _free(con->execs);
con->leftovers = _free(con->leftovers);
con->finalArgv = _free(con->finalArgv);
con->appName = _free(con->appName);
con->otherHelp = _free(con->otherHelp);
con->execPath = _free(con->execPath);
con->arg_strip = PBM_FREE(con->arg_strip);
con = _free(con);
return con;
}
int poptAddAlias(poptContext con, struct poptAlias alias,
/*@unused@*/ UNUSED(int flags))
{
poptItem item = (poptItem) alloca(sizeof(*item));
memset(item, 0, sizeof(*item));
item->option.longName = alias.longName;
item->option.shortName = alias.shortName;
item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
item->option.arg = 0;
item->option.val = 0;
item->option.descrip = NULL;
item->option.argDescrip = NULL;
item->argc = alias.argc;
item->argv = alias.argv;
return poptAddItem(con, item, 0);
}
/*@-boundswrite@*/
/*@-mustmod@*/ /* LCL: con not modified? */
int poptAddItem(poptContext con, poptItem newItem, int flags)
{
poptItem * items, item;
int * nitems;
switch (flags) {
case 1:
items = &con->execs;
nitems = &con->numExecs;
break;
case 0:
items = &con->aliases;
nitems = &con->numAliases;
break;
default:
return 1;
/*@notreached@*/ break;
}
*items = realloc((*items), ((*nitems) + 1) * sizeof(**items));
if ((*items) == NULL)
return 1;
item = (*items) + (*nitems);
item->option.longName =
(newItem->option.longName ? xstrdup(newItem->option.longName) : NULL);
item->option.shortName = newItem->option.shortName;
item->option.argInfo = newItem->option.argInfo;
item->option.arg = newItem->option.arg;
item->option.val = newItem->option.val;
item->option.descrip =
(newItem->option.descrip ? xstrdup(newItem->option.descrip) : NULL);
item->option.argDescrip =
(newItem->option.argDescrip ? xstrdup(newItem->option.argDescrip) : NULL);
item->argc = newItem->argc;
item->argv = newItem->argv;
(*nitems)++;
return 0;
}
/*@=mustmod@*/
/*@=boundswrite@*/
const char * poptBadOption(poptContext con, int flags)
{
struct optionStackEntry * os = NULL;
if (con != NULL)
os = (flags & POPT_BADOPTION_NOALIAS) ? con->optionStack : con->os;
/*@-nullderef@*/ /* LCL: os->argv != NULL */
return (os && os->argv ? os->argv[os->next - 1] : NULL);
/*@=nullderef@*/
}
const char * poptStrerror(const int error)
{
switch (error) {
case POPT_ERROR_NOARG:
return POPT_("missing argument");
case POPT_ERROR_UNWANTEDARG:
return POPT_("option does not take an argument");
case POPT_ERROR_BADOPT:
return POPT_("unknown option");
case POPT_ERROR_BADOPERATION:
return POPT_("mutually exclusive logical operations requested");
case POPT_ERROR_NULLARG:
return POPT_("opt->arg should not be NULL");
case POPT_ERROR_OPTSTOODEEP:
return POPT_("aliases nested too deeply");
case POPT_ERROR_BADQUOTE:
return POPT_("error in parameter quoting");
case POPT_ERROR_BADNUMBER:
return POPT_("invalid numeric value");
case POPT_ERROR_OVERFLOW:
return POPT_("number too large or too small");
case POPT_ERROR_MALLOC:
return POPT_("memory allocation failed");
case POPT_ERROR_ERRNO:
return strerror(errno);
default:
return POPT_("unknown error");
}
}
int poptStuffArgs(poptContext con, const char ** argv)
{
int argc;
int rc;
if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
return POPT_ERROR_OPTSTOODEEP;
for (argc = 0; argv[argc]; argc++)
{};
con->os++;
con->os->next = 0;
con->os->nextArg = NULL;
con->os->nextCharArg = NULL;
con->os->currAlias = NULL;
rc = poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
con->os->argb = NULL;
con->os->stuffed = 1;
return rc;
}
const char * poptGetInvocationName(poptContext con)
{
return (con->os->argv ? con->os->argv[0] : "");
}
/*@-boundswrite@*/
int poptStrippedArgv(poptContext con, int argc, char ** argv)
{
int numargs = argc;
int j = 1;
int i;
/*@-sizeoftype@*/
if (con->arg_strip)
for (i = 1; i < argc; i++) {
if (PBM_ISSET(i, con->arg_strip))
numargs--;
}
for (i = 1; i < argc; i++) {
if (con->arg_strip && PBM_ISSET(i, con->arg_strip))
continue;
argv[j] = (j < numargs) ? argv[i] : NULL;
j++;
}
/*@=sizeoftype@*/
return numargs;
}
/*@=boundswrite@*/
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