mirror of
https://github.com/MidnightCommander/mc
synced 2025-01-03 18:14:25 +03:00
6407873f69
* dir.c: Likewise. * find.c: Likewise. * help.c: Likewise. * layout.c: Likewise. * mountlist.c: Likewise. * popt.c: Likewise. * poptconfig.c: Likewise. * popthelp.c: Likewise. * regex.c: Likewise. * subshell.c: Likewise. * tree.c: Likewise. * util.c: Likewise. * utilunix.c: Likewise. * widget.c: Likewise. * wtools.c: Likewise.
591 lines
15 KiB
C
591 lines
15 KiB
C
/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
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file accompanying popt source distributions, available from
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ftp://ftp.redhat.com/pub/code/popt */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "poptalloca.h"
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#include <errno.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "global.h"
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#include "findme.h"
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#include "popt.h"
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#include "poptint.h"
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#ifndef HAVE_STRERROR
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static char * strerror(int errno) {
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extern int sys_nerr;
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extern char * sys_errlist[];
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if ((0 <= errno) && (errno < sys_nerr))
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return sys_errlist[errno];
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else
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return POPT_("unknown errno");
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}
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#endif
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void poptSetExecPath(poptContext con, const char * path, int allowAbsolute) {
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if (con->execPath) free(con->execPath);
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con->execPath = strdup(path);
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con->execAbsolute = allowAbsolute;
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}
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static void invokeCallbacks(poptContext con, const struct poptOption * table,
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int post) {
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const struct poptOption * opt = table;
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poptCallbackType cb;
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while (opt->longName || opt->shortName || opt->arg) {
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if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
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invokeCallbacks(con, opt->arg, post);
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} else if (((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) &&
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((!post && (opt->argInfo & POPT_CBFLAG_PRE)) ||
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( post && (opt->argInfo & POPT_CBFLAG_POST)))) {
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cb = (poptCallbackType)opt->arg;
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cb(con, post ? POPT_CALLBACK_REASON_POST : POPT_CALLBACK_REASON_PRE,
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NULL, NULL, opt->descrip);
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}
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opt++;
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}
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}
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poptContext poptGetContext(const char * name, int argc, char ** argv,
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const struct poptOption * options, int flags) {
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poptContext con = malloc(sizeof(*con));
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memset(con, 0, sizeof(*con));
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con->os = con->optionStack;
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con->os->argc = argc;
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con->os->argv = argv;
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if (!(flags & POPT_CONTEXT_KEEP_FIRST))
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con->os->next = 1; /* skip argv[0] */
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con->leftovers = malloc(sizeof(char *) * (argc + 1));
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con->options = options;
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con->finalArgv = malloc(sizeof(*con->finalArgv) * (argc * 2));
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con->finalArgvAlloced = argc * 2;
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con->flags = flags;
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con->execAbsolute = 1;
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if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
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con->flags |= POPT_CONTEXT_POSIXMEHARDER;
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if (name)
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con->appName = strcpy(malloc(strlen(name) + 1), name);
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invokeCallbacks(con, con->options, 0);
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return con;
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}
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void poptResetContext(poptContext con) {
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int i;
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con->os = con->optionStack;
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con->os->currAlias = NULL;
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con->os->nextCharArg = NULL;
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con->os->nextArg = NULL;
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con->os->next = 1; /* skip argv[0] */
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con->numLeftovers = 0;
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con->nextLeftover = 0;
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con->restLeftover = 0;
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con->doExec = NULL;
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for (i = 0; i < con->finalArgvCount; i++)
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free(con->finalArgv[i]);
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con->finalArgvCount = 0;
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}
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/* Only one of longName, shortName may be set at a time */
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static int handleExec(poptContext con, char * longName, char shortName) {
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int i;
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i = con->numExecs - 1;
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if (longName) {
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while (i >= 0 && (!con->execs[i].longName ||
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strcmp(con->execs[i].longName, longName))) i--;
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} else {
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while (i >= 0 &&
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con->execs[i].shortName != shortName) i--;
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}
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if (i < 0) return 0;
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if (con->flags & POPT_CONTEXT_NO_EXEC)
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return 1;
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if (!con->doExec) {
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con->doExec = con->execs + i;
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return 1;
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}
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/* We already have an exec to do; remember this option for next
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time 'round */
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if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
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con->finalArgvAlloced += 10;
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con->finalArgv = realloc(con->finalArgv,
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sizeof(*con->finalArgv) * con->finalArgvAlloced);
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}
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i = con->finalArgvCount++;
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con->finalArgv[i] = malloc((longName ? strlen(longName) : 0) + 3);
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if (longName)
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sprintf(con->finalArgv[i], "--%s", longName);
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else
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sprintf(con->finalArgv[i], "-%c", shortName);
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return 1;
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}
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/* Only one of longName, shortName may be set at a time */
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static int handleAlias(poptContext con, char * longName, char shortName,
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char * nextCharArg) {
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int i;
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if (con->os->currAlias && con->os->currAlias->longName && longName &&
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!strcmp(con->os->currAlias->longName, longName))
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return 0;
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if (con->os->currAlias && shortName &&
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shortName == con->os->currAlias->shortName)
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return 0;
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i = con->numAliases - 1;
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if (longName) {
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while (i >= 0 && (!con->aliases[i].longName ||
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strcmp(con->aliases[i].longName, longName))) i--;
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} else {
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while (i >= 0 &&
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con->aliases[i].shortName != shortName) i--;
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}
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if (i < 0) return 0;
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if ((con->os - con->optionStack + 1)
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== POPT_OPTION_DEPTH)
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return POPT_ERROR_OPTSTOODEEP;
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if (nextCharArg && *nextCharArg)
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con->os->nextCharArg = nextCharArg;
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con->os++;
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con->os->next = 0;
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con->os->stuffed = 0;
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con->os->nextArg = con->os->nextCharArg = NULL;
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con->os->currAlias = con->aliases + i;
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con->os->argc = con->os->currAlias->argc;
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con->os->argv = con->os->currAlias->argv;
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return 1;
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}
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static void execCommand(poptContext con) {
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#if 0
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char ** argv;
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int pos = 0;
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char * script = con->doExec->script;
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argv = malloc(sizeof(*argv) *
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(6 + con->numLeftovers + con->finalArgvCount));
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if (!con->execAbsolute && strchr(script, '/')) return;
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if (!strchr(script, '/') && con->execPath) {
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argv[pos] = alloca(strlen(con->execPath) + strlen(script) + 2);
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sprintf(argv[pos], "%s/%s", con->execPath, script);
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} else {
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argv[pos] = script;
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}
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pos++;
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argv[pos] = findProgramPath(con->os->argv[0]);
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if (argv[pos]) pos++;
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argv[pos++] = ";";
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memcpy(argv + pos, con->finalArgv, sizeof(*argv) * con->finalArgvCount);
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pos += con->finalArgvCount;
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if (con->numLeftovers) {
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argv[pos++] = "--";
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memcpy(argv + pos, con->leftovers, sizeof(*argv) * con->numLeftovers);
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pos += con->numLeftovers;
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}
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argv[pos++] = NULL;
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execvp(argv[0], argv);
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#else
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(void) con;
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abort();
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#endif
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}
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static const struct poptOption * findOption(const struct poptOption * table,
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const char * longName,
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char shortName,
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poptCallbackType * callback,
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void ** callbackData,
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int singleDash) {
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const struct poptOption * opt = table;
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const struct poptOption * opt2;
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const struct poptOption * cb = NULL;
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/* This happens when a single - is given */
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if (singleDash && !shortName && !*longName)
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shortName = '-';
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while (opt->longName || opt->shortName || opt->arg) {
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if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
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opt2 = findOption(opt->arg, longName, shortName, callback,
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callbackData, singleDash);
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if (opt2) {
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if (*callback && !*callbackData)
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*callbackData = opt->descrip;
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return opt2;
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}
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} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
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cb = opt;
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} else if (longName && opt->longName &&
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(!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
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!strcmp(longName, opt->longName)) {
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break;
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} else if (shortName && shortName == opt->shortName) {
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break;
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}
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opt++;
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}
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if (!opt->longName && !opt->shortName) return NULL;
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*callbackData = NULL;
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*callback = NULL;
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if (cb) {
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*callback = (poptCallbackType)cb->arg;
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if (!(cb->argInfo & POPT_CBFLAG_INC_DATA))
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*callbackData = cb->descrip;
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}
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return opt;
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}
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/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
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int poptGetNextOpt(poptContext con) {
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char * optString, * chptr, * localOptString;
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char * longArg = NULL;
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char * origOptString;
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long aLong;
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char * end;
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const struct poptOption * opt = NULL;
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int done = 0;
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int i;
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poptCallbackType cb;
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void * cbData;
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int singleDash;
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while (!done) {
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while (!con->os->nextCharArg && con->os->next == con->os->argc
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&& con->os > con->optionStack)
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con->os--;
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if (!con->os->nextCharArg && con->os->next == con->os->argc) {
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invokeCallbacks(con, con->options, 1);
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if (con->doExec) execCommand(con);
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return -1;
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}
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if (!con->os->nextCharArg) {
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origOptString = con->os->argv[con->os->next++];
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if (con->restLeftover || *origOptString != '-') {
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con->leftovers[con->numLeftovers++] = origOptString;
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if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
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con->restLeftover = 1;
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continue;
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}
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/* Make a copy we can hack at */
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localOptString = optString =
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strcpy(alloca(strlen(origOptString) + 1),
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origOptString);
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if (!optString[0])
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return POPT_ERROR_BADOPT;
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if (optString[1] == '-' && !optString[2]) {
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con->restLeftover = 1;
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continue;
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} else {
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optString++;
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if (*optString == '-')
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singleDash = 0, optString++;
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else
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singleDash = 1;
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if (handleAlias(con, optString, '\0', NULL))
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continue;
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if (handleExec(con, optString, '\0'))
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continue;
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chptr = optString;
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while (*chptr && *chptr != '=') chptr++;
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if (*chptr == '=') {
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longArg = origOptString + (chptr - localOptString) + 1;
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*chptr = '\0';
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}
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opt = findOption(con->options, optString, '\0', &cb, &cbData,
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singleDash);
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if (!opt && !singleDash) return POPT_ERROR_BADOPT;
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}
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if (!opt)
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con->os->nextCharArg = origOptString + 1;
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}
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if (con->os->nextCharArg) {
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origOptString = con->os->nextCharArg;
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con->os->nextCharArg = NULL;
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if (handleAlias(con, NULL, *origOptString,
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origOptString + 1)) {
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origOptString++;
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continue;
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}
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if (handleExec(con, NULL, *origOptString))
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continue;
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opt = findOption(con->options, NULL, *origOptString, &cb,
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&cbData, 0);
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if (!opt) return POPT_ERROR_BADOPT;
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origOptString++;
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if (*origOptString)
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con->os->nextCharArg = origOptString;
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}
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if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
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*((int *)opt->arg) = 1;
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} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
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if (opt->arg) *((int *) opt->arg) = opt->val;
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} else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
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if (longArg) {
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con->os->nextArg = longArg;
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} else if (con->os->nextCharArg) {
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con->os->nextArg = con->os->nextCharArg;
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con->os->nextCharArg = NULL;
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} else {
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while (con->os->next == con->os->argc &&
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con->os > con->optionStack)
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con->os--;
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if (con->os->next == con->os->argc)
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return POPT_ERROR_NOARG;
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con->os->nextArg = con->os->argv[con->os->next++];
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}
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if (opt->arg) {
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switch (opt->argInfo & POPT_ARG_MASK) {
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case POPT_ARG_STRING:
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*((char **) opt->arg) = con->os->nextArg;
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break;
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case POPT_ARG_INT:
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case POPT_ARG_LONG:
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aLong = strtol(con->os->nextArg, &end, 0);
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if (!(end && *end == '\0'))
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return POPT_ERROR_BADNUMBER;
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if (aLong == LONG_MIN || aLong == LONG_MAX)
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return POPT_ERROR_OVERFLOW;
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if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
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*((long *) opt->arg) = aLong;
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} else {
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if (aLong > INT_MAX || aLong < INT_MIN)
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return POPT_ERROR_OVERFLOW;
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*((int *) opt->arg) =aLong;
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}
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break;
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default:
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fprintf(stdout, POPT_("option type (%d) not implemented in popt\n"),
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opt->argInfo & POPT_ARG_MASK);
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exit(1);
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}
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}
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}
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if (cb)
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cb(con, POPT_CALLBACK_REASON_OPTION, opt, con->os->nextArg, cbData);
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else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
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done = 1;
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if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
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con->finalArgvAlloced += 10;
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con->finalArgv = realloc(con->finalArgv,
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sizeof(*con->finalArgv) * con->finalArgvAlloced);
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}
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i = con->finalArgvCount++;
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con->finalArgv[i] =
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malloc((opt->longName ? strlen(opt->longName) : 0) + 3);
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if (opt->longName)
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sprintf(con->finalArgv[i], "--%s", opt->longName);
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else
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sprintf(con->finalArgv[i], "-%c", opt->shortName);
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if (opt->arg && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE
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&& (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL)
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con->finalArgv[con->finalArgvCount++] = strdup(con->os->nextArg);
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}
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return opt->val;
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}
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char * poptGetOptArg(poptContext con) {
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char * ret = con->os->nextArg;
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con->os->nextArg = NULL;
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return ret;
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}
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char * poptGetArg(poptContext con) {
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if (con->numLeftovers == con->nextLeftover) return NULL;
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return (con->leftovers[con->nextLeftover++]);
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}
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char * poptPeekArg(poptContext con) {
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if (con->numLeftovers == con->nextLeftover) return NULL;
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return (con->leftovers[con->nextLeftover]);
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}
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char ** poptGetArgs(poptContext con) {
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if (con->numLeftovers == con->nextLeftover) return NULL;
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/* some apps like [like RPM ;-) ] need this NULL terminated */
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con->leftovers[con->numLeftovers] = NULL;
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return (con->leftovers + con->nextLeftover);
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}
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void poptFreeContext(poptContext con) {
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int i;
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for (i = 0; i < con->numAliases; i++) {
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if (con->aliases[i].longName) free(con->aliases[i].longName);
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free(con->aliases[i].argv);
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}
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for (i = 0; i < con->numExecs; i++) {
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if (con->execs[i].longName) free(con->execs[i].longName);
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free(con->execs[i].script);
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}
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for (i = 0; i < con->finalArgvCount; i++)
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free(con->finalArgv[i]);
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free(con->leftovers);
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free(con->finalArgv);
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if (con->appName) free(con->appName);
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if (con->aliases) free(con->aliases);
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if (con->otherHelp) free(con->otherHelp);
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if (con->execPath) free(con->execPath);
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free(con);
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}
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int poptAddAlias(poptContext con, struct poptAlias newAlias, int flags) {
|
|
int aliasNum = con->numAliases++;
|
|
struct poptAlias * alias;
|
|
|
|
(void) flags;
|
|
|
|
/* SunOS won't realloc(NULL, ...) */
|
|
if (!con->aliases)
|
|
con->aliases = malloc(sizeof(newAlias) * con->numAliases);
|
|
else
|
|
con->aliases = realloc(con->aliases,
|
|
sizeof(newAlias) * con->numAliases);
|
|
alias = con->aliases + aliasNum;
|
|
|
|
*alias = newAlias;
|
|
if (alias->longName)
|
|
alias->longName = strcpy(malloc(strlen(alias->longName) + 1),
|
|
alias->longName);
|
|
else
|
|
alias->longName = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
char * poptBadOption(poptContext con, int flags) {
|
|
struct optionStackEntry * os;
|
|
|
|
if (flags & POPT_BADOPTION_NOALIAS)
|
|
os = con->optionStack;
|
|
else
|
|
os = con->os;
|
|
|
|
return os->argv[os->next - 1];
|
|
}
|
|
|
|
#define POPT_ERROR_NOARG -10
|
|
#define POPT_ERROR_BADOPT -11
|
|
#define POPT_ERROR_OPTSTOODEEP -13
|
|
#define POPT_ERROR_BADQUOTE -15 /* only from poptParseArgString() */
|
|
#define POPT_ERROR_ERRNO -16 /* only from poptParseArgString() */
|
|
|
|
const char * poptStrerror(const int error) {
|
|
switch (error) {
|
|
case POPT_ERROR_NOARG:
|
|
return _("missing argument");
|
|
case POPT_ERROR_BADOPT:
|
|
return _("unknown option");
|
|
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 _("invalid numeric value");
|
|
case POPT_ERROR_OVERFLOW:
|
|
return POPT_("number too large or too small");
|
|
case POPT_ERROR_ERRNO:
|
|
return strerror(errno);
|
|
default:
|
|
return POPT_("unknown error");
|
|
}
|
|
}
|
|
|
|
int poptStuffArgs(poptContext con, char ** argv) {
|
|
int i;
|
|
|
|
if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
|
|
return POPT_ERROR_OPTSTOODEEP;
|
|
|
|
for (i = 0; argv[i]; i++);
|
|
|
|
con->os++;
|
|
con->os->next = 0;
|
|
con->os->nextArg = con->os->nextCharArg = NULL;
|
|
con->os->currAlias = NULL;
|
|
con->os->argc = i;
|
|
con->os->argv = argv;
|
|
con->os->stuffed = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const char * poptGetInvocationName(poptContext con) {
|
|
return con->os->argv[0];
|
|
}
|