Created SILC Runtime Toolkit git repository Part I.
[runtime.git] / apps / irssi / src / lib-popt / popt.c
diff --git a/apps/irssi/src/lib-popt/popt.c b/apps/irssi/src/lib-popt/popt.c
deleted file mode 100644 (file)
index a23ae8a..0000000
+++ /dev/null
@@ -1,594 +0,0 @@
-/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
-   file accompanying popt source distributions, available from 
-   ftp://ftp.redhat.com/pub/code/popt */
-
-#include "common.h"
-
-#include "findme.h"
-#include "popt.h"
-#include "poptint.h"
-
-void poptSetExecPath(poptContext con, const char * path, int allowAbsolute) {
-    if (con->execPath) free(con->execPath);
-    con->execPath = g_strdup(path);
-    con->execAbsolute = allowAbsolute;
-}
-
-static void invokeCallbacks(poptContext con, const struct poptOption * table,
-                           int post) {
-    const struct poptOption * opt = table;
-    poptCallbackType cb;
-    
-    while (opt->longName || opt->shortName || opt->arg) {
-       if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
-           invokeCallbacks(con, opt->arg, post);
-       } else if (((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) &&
-                  ((!post && (opt->argInfo & POPT_CBFLAG_PRE)) ||
-                   ( post && (opt->argInfo & POPT_CBFLAG_POST)))) {
-           cb = (poptCallbackType)opt->arg;
-           cb(con, post ? POPT_CALLBACK_REASON_POST : POPT_CALLBACK_REASON_PRE,
-              NULL, NULL, opt->descrip);
-       }
-       opt++;
-    }
-}
-
-poptContext poptGetContext(char * name, int argc, char ** argv, 
-                          const struct poptOption * options, int flags) {
-    poptContext con = malloc(sizeof(*con));
-
-    memset(con, 0, sizeof(*con));
-
-    con->os = con->optionStack;
-    con->os->argc = argc;
-    con->os->argv = argv;
-
-    if (!(flags & POPT_CONTEXT_KEEP_FIRST))
-       con->os->next = 1;                      /* skip argv[0] */
-
-    con->leftovers = malloc(sizeof(char *) * (argc + 1));
-    con->options = options;
-    con->finalArgv = malloc(sizeof(*con->finalArgv) * (argc * 2));
-    con->finalArgvAlloced = argc * 2;
-    con->flags = flags;
-    con->execAbsolute = 1;
-
-    if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
-       con->flags |= POPT_CONTEXT_POSIXMEHARDER;
-    
-    if (name)
-       con->appName = strcpy(malloc(strlen(name) + 1), name);
-
-    invokeCallbacks(con, con->options, 0);
-
-    return con;
-}
-
-void poptResetContext(poptContext con) {
-    int i;
-
-    con->os = con->optionStack;
-    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;
-
-    for (i = 0; i < con->finalArgvCount; i++)
-       free(con->finalArgv[i]);
-
-    con->finalArgvCount = 0;
-}
-
-/* Only one of longName, shortName may be set at a time */
-static int handleExec(poptContext con, char * longName, char shortName) {
-    int i;
-
-    i = con->numExecs - 1;
-    if (longName) {
-       while (i >= 0 && (!con->execs[i].longName ||
-           strcmp(con->execs[i].longName, longName))) i--;
-    } else {
-       while (i >= 0 &&
-           con->execs[i].shortName != shortName) i--;
-    }
-
-    if (i < 0) return 0;
-
-    if (con->flags & POPT_CONTEXT_NO_EXEC)
-       return 1;
-
-    if (!con->doExec) {
-       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++;
-    con->finalArgv[i] = malloc((longName ? strlen(longName) : 0) + 3);
-    if (longName)
-       sprintf(con->finalArgv[i], "--%s", longName);
-    else 
-       sprintf(con->finalArgv[i], "-%c", shortName);
-
-    return 1;
-}
-
-/* Only one of longName, shortName may be set at a time */
-static int handleAlias(poptContext con, char * longName, char shortName,
-                      char * nextCharArg) {
-    int i;
-
-    if (con->os->currAlias && con->os->currAlias->longName && longName &&
-       !strcmp(con->os->currAlias->longName, longName)) 
-       return 0;
-    if (con->os->currAlias && shortName && 
-           shortName == con->os->currAlias->shortName)
-       return 0;
-
-    i = con->numAliases - 1;
-    if (longName) {
-       while (i >= 0 && (!con->aliases[i].longName ||
-           strcmp(con->aliases[i].longName, longName))) i--;
-    } else {
-       while (i >= 0 &&
-           con->aliases[i].shortName != shortName) i--;
-    }
-
-    if (i < 0) return 0;
-
-    if ((con->os - con->optionStack + 1) 
-           == POPT_OPTION_DEPTH)
-       return POPT_ERROR_OPTSTOODEEP;
-
-    if (nextCharArg && *nextCharArg)
-       con->os->nextCharArg = nextCharArg;
-
-    con->os++;
-    con->os->next = 0;
-    con->os->stuffed = 0;
-    con->os->nextArg = con->os->nextCharArg = NULL;
-    con->os->currAlias = con->aliases + i;
-    con->os->argc = con->os->currAlias->argc;
-    con->os->argv = con->os->currAlias->argv;
-
-    return 1;
-}
-
-static void execCommand(poptContext con) {
-    char ** argv;
-    int pos = 0;
-    char * script = con->doExec->script;
-
-    argv = malloc(sizeof(*argv) * 
-                       (6 + con->numLeftovers + con->finalArgvCount));
-
-    if (!con->execAbsolute && strchr(script, '/')) return;
-
-    if (!strchr(script, '/') && con->execPath) {
-       argv[pos] = g_strdup_printf("%s/%s", con->execPath, script);
-    } else {
-       argv[pos] = script;
-    }
-    pos++;
-
-    argv[pos] = findProgramPath(con->os->argv[0]);
-    if (argv[pos]) pos++;
-    argv[pos++] = ";";
-
-    memcpy(argv + pos, con->finalArgv, sizeof(*argv) * con->finalArgvCount);
-    pos += con->finalArgvCount;
-
-    if (con->numLeftovers) {
-       argv[pos++] = "--";
-       memcpy(argv + pos, con->leftovers, sizeof(*argv) * con->numLeftovers);
-       pos += con->numLeftovers;
-    }
-
-    argv[pos++] = NULL;
-
-#ifdef __hpux
-    setresuid(getuid(), getuid(),-1);
-#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)
-    setuid(getuid());
-#elif defined (HAVE_SETREUID)
-    setreuid(getuid(), getuid()); /*hlauer: not portable to hpux9.01 */
-#else
-    ; /* Can't drop privileges */
-#endif
-#endif
-
-    execvp(argv[0], argv);
-}
-
-static const struct poptOption * findOption(const struct poptOption * table,
-                                           const char * longName,
-                                           char shortName,
-                                           poptCallbackType * callback,
-                                           void ** callbackData,
-                                           int singleDash) {
-    const struct poptOption * opt = table;
-    const struct poptOption * opt2;
-    const struct poptOption * cb = NULL;
-
-    /* This happens when a single - is given */
-    if (singleDash && !shortName && !*longName)
-       shortName = '-';
-
-    while (opt->longName || opt->shortName || opt->arg) {
-       if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
-           opt2 = findOption(opt->arg, longName, shortName, callback, 
-                             callbackData, singleDash);
-           if (opt2) {
-               if (*callback && !*callbackData)
-                   *callbackData = opt->descrip;
-               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)) &&
-                  !strcmp(longName, opt->longName)) {
-           break;
-       } else if (shortName && shortName == opt->shortName) {
-           break;
-       }
-       opt++;
-    }
-
-    if (!opt->longName && !opt->shortName) return NULL;
-    *callbackData = NULL;
-    *callback = NULL;
-    if (cb) {
-       *callback = (poptCallbackType)cb->arg;
-       if (!(cb->argInfo & POPT_CBFLAG_INC_DATA))
-           *callbackData = cb->descrip;
-    }
-
-    return opt;
-}
-
-/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
-int poptGetNextOpt(poptContext con) {
-    char * optString, * chptr, * localOptString;
-    char * longArg = NULL;
-    char * origOptString, *dup;
-    long aLong;
-    char * end;
-    const struct poptOption * opt = NULL;
-    int done = 0;
-    int i;
-    poptCallbackType cb;
-    void * cbData;
-    int singleDash;
-
-    dup = NULL;
-    while (!done) {
-        if (dup) {
-            g_free(dup);
-            dup = NULL;
-        }
-       while (!con->os->nextCharArg && con->os->next == con->os->argc 
-               && con->os > con->optionStack)
-           con->os--;
-       if (!con->os->nextCharArg && con->os->next == con->os->argc) {
-           invokeCallbacks(con, con->options, 1);
-           if (con->doExec) execCommand(con);
-           return -1;
-       }
-
-       if (!con->os->nextCharArg) {
-               
-           origOptString = con->os->argv[con->os->next++];
-
-           if (con->restLeftover || *origOptString != '-') {
-               con->leftovers[con->numLeftovers++] = origOptString;
-               if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
-                   con->restLeftover = 1;
-               continue;
-           }
-
-           /* Make a copy we can hack at */
-           dup = localOptString = optString =
-                       g_strdup(origOptString);
-
-            if (!optString[0]) {
-                g_free(dup);
-               return POPT_ERROR_BADOPT;
-            }
-
-           if (optString[1] == '-' && !optString[2]) {
-               con->restLeftover = 1;
-               continue;
-           } else {
-               optString++;
-               if (*optString == '-')
-                   singleDash = 0, optString++;
-               else
-                   singleDash = 1;
-
-               if (handleAlias(con, optString, '\0', NULL))
-                   continue;
-               if (handleExec(con, optString, '\0'))
-                   continue;
-
-               chptr = optString;
-               while (*chptr && *chptr != '=') chptr++;
-               if (*chptr == '=') {
-                   longArg = origOptString + (chptr - localOptString) + 1;
-                   *chptr = '\0';
-               }
-
-               opt = findOption(con->options, optString, '\0', &cb, &cbData,
-                                singleDash);
-                if (!opt && !singleDash) {
-                    g_free(dup);
-                    return POPT_ERROR_BADOPT;
-                }
-           }
-
-           if (!opt)
-               con->os->nextCharArg = origOptString + 1;
-       }
-
-       if (con->os->nextCharArg) {
-           origOptString = con->os->nextCharArg;
-
-           con->os->nextCharArg = NULL;
-
-           if (handleAlias(con, NULL, *origOptString,
-                           origOptString + 1)) {
-               origOptString++;
-               continue;
-           }
-           if (handleExec(con, NULL, *origOptString))
-               continue;
-
-           opt = findOption(con->options, NULL, *origOptString, &cb, 
-                            &cbData, 0);
-            if (!opt) {
-                g_free(dup);
-                return POPT_ERROR_BADOPT;
-            }
-           origOptString++;
-           if (*origOptString)
-               con->os->nextCharArg = origOptString;
-       }
-
-       if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
-           *((int *)opt->arg) = 1;
-       } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
-           if (opt->arg) *((int *) opt->arg) = opt->val;
-       } else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
-           if (longArg) {
-               con->os->nextArg = longArg;
-           } else if (con->os->nextCharArg) {
-               con->os->nextArg = con->os->nextCharArg;
-               con->os->nextCharArg = NULL;
-           } else { 
-               while (con->os->next == con->os->argc && 
-                      con->os > con->optionStack)
-                   con->os--;
-                if (con->os->next == con->os->argc) {
-                    g_free(dup);
-                   return POPT_ERROR_NOARG;
-                }
-
-               con->os->nextArg = con->os->argv[con->os->next++];
-           }
-
-           if (opt->arg) {
-               switch (opt->argInfo & POPT_ARG_MASK) {
-                 case POPT_ARG_STRING:
-                   *((char **) opt->arg) = con->os->nextArg;
-                   break;
-
-                 case POPT_ARG_INT:
-                 case POPT_ARG_LONG:
-                   aLong = strtol(con->os->nextArg, &end, 0);
-                    if (!(end && *end == '\0')) {
-                        g_free(dup);
-                       return POPT_ERROR_BADNUMBER;
-                    }
-
-                    if (aLong == LONG_MIN || aLong == LONG_MAX) {
-                        g_free(dup);
-                       return POPT_ERROR_OVERFLOW;
-                    }
-                   if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
-                       *((long *) opt->arg) = aLong;
-                   } else {
-                        if (aLong > INT_MAX || aLong < INT_MIN) {
-                            g_free(dup);
-                           return POPT_ERROR_OVERFLOW;
-                        }
-                       *((int *) opt->arg) =aLong;
-                   }
-                   break;
-
-                 default:
-                   fprintf(stdout, POPT_("option type (%d) not implemented in popt\n"),
-                     opt->argInfo & POPT_ARG_MASK);
-                   exit(1);
-               }
-           }
-       }
-
-       if (cb)
-           cb(con, POPT_CALLBACK_REASON_OPTION, opt, con->os->nextArg, cbData);
-       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);
-       }
-
-       i = con->finalArgvCount++;
-       con->finalArgv[i] = 
-               malloc((opt->longName ? strlen(opt->longName) : 0) + 3);
-       if (opt->longName)
-           sprintf(con->finalArgv[i], "--%s", opt->longName);
-       else 
-           sprintf(con->finalArgv[i], "-%c", opt->shortName);
-
-       if (opt->arg && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE
-                    && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL) 
-           con->finalArgv[con->finalArgvCount++] =
-               strcpy(malloc(strlen(con->os->nextArg)+1), con->os->nextArg);
-    }
-
-    if (dup) g_free(dup);
-    return opt->val;
-}
-
-char * poptGetOptArg(poptContext con) {
-    char * ret = con->os->nextArg;
-    con->os->nextArg = NULL;
-    return ret;
-}
-
-char * poptGetArg(poptContext con) {
-    if (con->numLeftovers == con->nextLeftover) return NULL;
-    return (con->leftovers[con->nextLeftover++]);
-}
-
-char * poptPeekArg(poptContext con) {
-    if (con->numLeftovers == con->nextLeftover) return NULL;
-    return (con->leftovers[con->nextLeftover]);
-}
-
-char ** poptGetArgs(poptContext con) {
-    if (con->numLeftovers == con->nextLeftover) return NULL;
-
-    /* some apps like [like RPM ;-) ] need this NULL terminated */
-    con->leftovers[con->numLeftovers] = NULL;
-
-    return (con->leftovers + con->nextLeftover);
-}
-
-void poptFreeContext(poptContext con) {
-    int i;
-
-    for (i = 0; i < con->numAliases; i++) {
-       if (con->aliases[i].longName) free(con->aliases[i].longName);
-       free(con->aliases[i].argv);
-    }
-
-    for (i = 0; i < con->numExecs; i++) {
-       if (con->execs[i].longName) free(con->execs[i].longName);
-       free(con->execs[i].script);
-    }
-
-    for (i = 0; i < con->finalArgvCount; i++)
-       free(con->finalArgv[i]);
-
-    free(con->leftovers);
-    free(con->finalArgv);
-    if (con->appName) free(con->appName);
-    if (con->aliases) free(con->aliases);
-    if (con->otherHelp) free(con->otherHelp);
-    if (con->execPath) free(con->execPath);
-    free(con);
-}
-
-int poptAddAlias(poptContext con, struct poptAlias newAlias, int flags) {
-    int aliasNum = con->numAliases++;
-    struct poptAlias * alias;
-
-    /* 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 POPT_("missing argument");
-      case POPT_ERROR_BADOPT:
-       return POPT_("unknown option");
-      case POPT_ERROR_OPTSTOODEEP:
-       return POPT_("aliases nested too deeply");
-      case POPT_ERROR_BADQUOTE:
-       return POPT_("error in paramter 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_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];
-}