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Annotation of OpenXM_contrib2/asir2000/parse/load.c, Revision 1.33

1.3       noro        1: /*
                      2:  * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
                      3:  * All rights reserved.
                      4:  *
                      5:  * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
                      6:  * non-exclusive and royalty-free license to use, copy, modify and
                      7:  * redistribute, solely for non-commercial and non-profit purposes, the
                      8:  * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
                      9:  * conditions of this Agreement. For the avoidance of doubt, you acquire
                     10:  * only a limited right to use the SOFTWARE hereunder, and FLL or any
                     11:  * third party developer retains all rights, including but not limited to
                     12:  * copyrights, in and to the SOFTWARE.
                     13:  *
                     14:  * (1) FLL does not grant you a license in any way for commercial
                     15:  * purposes. You may use the SOFTWARE only for non-commercial and
                     16:  * non-profit purposes only, such as academic, research and internal
                     17:  * business use.
                     18:  * (2) The SOFTWARE is protected by the Copyright Law of Japan and
                     19:  * international copyright treaties. If you make copies of the SOFTWARE,
                     20:  * with or without modification, as permitted hereunder, you shall affix
                     21:  * to all such copies of the SOFTWARE the above copyright notice.
                     22:  * (3) An explicit reference to this SOFTWARE and its copyright owner
                     23:  * shall be made on your publication or presentation in any form of the
                     24:  * results obtained by use of the SOFTWARE.
                     25:  * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
1.4       noro       26:  * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
1.3       noro       27:  * for such modification or the source code of the modified part of the
                     28:  * SOFTWARE.
                     29:  *
                     30:  * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
                     31:  * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
                     32:  * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
                     33:  * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
                     34:  * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
                     35:  * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
                     36:  * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
                     37:  * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
                     38:  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
                     39:  * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
                     40:  * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
                     41:  * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
                     42:  * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
                     43:  * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
                     44:  * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
                     45:  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
                     46:  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
                     47:  *
1.33    ! noro       48:  * $OpenXM: OpenXM_contrib2/asir2000/parse/load.c,v 1.32 2017/02/07 08:30:31 noro Exp $
1.3       noro       49: */
1.1       noro       50: #include "ca.h"
                     51: #include "parse.h"
1.5       noro       52:
1.29      fujimoto   53: #if defined(VISUAL) || defined(__MINGW32__)
1.1       noro       54: #include <string.h>
                     55: #include <fcntl.h>
                     56: #include <sys/stat.h>
1.5       noro       57: #else /* VISUAL */
1.1       noro       58: #if defined(_PA_RISC1_1) || defined(SYSV) || defined(__SVR4)
                     59: #include <unistd.h>
                     60: #include <string.h>
                     61: #else
                     62: #include <strings.h>
                     63: #endif
                     64: #include <sys/types.h>
                     65: #include <sys/file.h>
                     66: #include <sys/stat.h>
                     67: #endif
                     68:
                     69: #if defined(linux)
                     70: #include <unistd.h>
                     71: #endif
                     72:
1.29      fujimoto   73: #if defined(VISUAL) || defined(__MINGW32__)
1.1       noro       74: #include <io.h>
                     75: #endif
                     76:
1.8       noro       77: #ifdef MALLOC
1.1       noro       78: #undef MALLOC
1.22      noro       79: #define MALLOC(x) Risa_GC_malloc((x)+4)
1.8       noro       80: #endif
1.1       noro       81:
1.15      takayama   82: char **ASIRLOADPATH;
1.27      ohara      83: int ASIRLOADPATH_LEN;
1.1       noro       84:
1.29      fujimoto   85: #if defined(VISUAL) || defined(__MINGW32__)
1.1       noro       86: #define ENVDELIM ';'
                     87: #define MORE "more < "
                     88: #else
                     89: #define ENVDELIM ':'
                     90: #define MORE "more"
                     91: #endif
                     92:
                     93: #ifndef ASIR_LIBDIR
1.17      takayama   94: #define ASIR_LIBDIR "/usr/local/lib/asir"
                     95: #endif
                     96: #ifndef ASIR_CONTRIB_DIR
                     97: #define ASIR_CONTRIB_DIR "/usr/local/lib/asir-contrib"
1.1       noro       98: #endif
                     99:
                    100: char *getenv();
1.8       noro      101: void Pget_rootdir();
1.10      noro      102: char *search_executable(char *name);
1.8       noro      103:
1.1       noro      104: extern char *asir_libdir;
1.17      takayama  105: extern char *asir_contrib_dir;
1.24      ohara     106: extern char *asir_private_dir;
1.1       noro      107: extern char *asir_pager;
                    108: extern int main_parser;
1.9       noro      109: extern JMP_BUF exec_env;
1.1       noro      110:
1.10      noro      111: char *search_executable(char *name)
                    112: {
1.33    ! noro      113:   char *c,*s,*ret;
        !           114:   int len,nlen;
        !           115:   char dir[BUFSIZ],path[BUFSIZ];
        !           116:   struct stat buf;
        !           117:
        !           118:   nlen = strlen(name);
        !           119:   for ( s = (char *)getenv("PATH"); s; ) {
        !           120:     c = (char *)index(s,':');
        !           121:     len = c ? c-s : strlen(s);
        !           122:     if ( len >= BUFSIZ ) continue;
        !           123:     strncpy(dir,s,len); dir[len] = 0;
        !           124:     if ( c ) s = c+1;
        !           125:     else s = 0;
        !           126:     if ( len+nlen+1 >= BUFSIZ ) continue;
        !           127:     sprintf(path,"%s/%s",dir,name);
        !           128:     if ( !stat(path,&buf) && !(buf.st_mode & S_IFDIR)
1.29      fujimoto  129: #if !defined(VISUAL) && !defined(__MINGW32__)
1.33    ! noro      130:       && !access(path,X_OK)
1.14      noro      131: #endif
                    132:                 ) {
1.33    ! noro      133:       len = strlen(path)+1;
        !           134:       ret = (char *)MALLOC(len);
        !           135:       strcpy(ret,path);
        !           136:       return ret;
        !           137:     }
        !           138:   }
        !           139:   return 0;
1.10      noro      140: }
                    141:
1.1       noro      142: void env_init() {
1.33    ! noro      143:   char *e,*p,*q;
        !           144:   int i,l,japanese;
        !           145:   char *getenv();
        !           146:   char *oxhome;
        !           147:   char rootname[BUFSIZ];
1.25      ohara     148:     size_t len;
                    149:
1.33    ! noro      150:   if ( oxhome = getenv("OpenXM_HOME") ) {
        !           151:     len = strlen(oxhome);
        !           152:   }else {
1.29      fujimoto  153: #if defined(VISUAL) || defined(__MINGW32__)
1.33    ! noro      154:     get_rootdir(rootname,sizeof(rootname));
        !           155:     len = strlen(rootname);
        !           156:     oxhome = rootname;
        !           157: #endif
        !           158:   }
        !           159:
        !           160:   if ( !(asir_libdir = getenv("ASIR_LIBDIR")) ) {
        !           161:     if ( oxhome ) {
        !           162:       asir_libdir = (char *)malloc(len+strlen("/lib/asir")+1);
        !           163:       sprintf(asir_libdir,"%s/lib/asir",oxhome);
        !           164:     } else {
        !           165:       asir_libdir = (char *)malloc(strlen(ASIR_LIBDIR)+1);
        !           166:       strcpy(asir_libdir,ASIR_LIBDIR);
        !           167:     }
        !           168:   }
        !           169:
        !           170:   if ( !(asir_contrib_dir = getenv("ASIR_CONTRIB_DIR")) ) {
        !           171:     if ( oxhome ) {
        !           172:       asir_contrib_dir = (char *)malloc(len+strlen("/lib/asir-contrib")+1);
        !           173:       sprintf(asir_contrib_dir,"%s/lib/asir-contrib",oxhome);
        !           174:     } else {
        !           175:       asir_contrib_dir = (char *)malloc(strlen(ASIR_CONTRIB_DIR)+1);
        !           176:       strcpy(asir_contrib_dir,ASIR_CONTRIB_DIR);
        !           177:     }
        !           178:   }
1.17      takayama  179:
1.24      ohara     180:     asir_private_dir = NULL;
1.29      fujimoto  181: #if defined(VISUAL) || defined(__MINGW32__)
1.24      ohara     182:     if ( e = getenv("APPDATA") ) {
1.26      ohara     183:         asir_private_dir = (char *)malloc(strlen(e)+strlen("/OpenXM/lib/asir-contrib")+1);
                    184:         sprintf(asir_private_dir,"%s/OpenXM/lib/asir-contrib",e);
1.24      ohara     185:     }
                    186: #endif
                    187:
1.33    ! noro      188:   if ( !(asir_pager = getenv("PAGER")) ) {
1.31      noro      189: #if 0
1.33    ! noro      190:     japanese = 0;
        !           191:     if ( (e = getenv("LANGUAGE")) &&
        !           192:       (!strncmp(e,"japan",5) || !strncmp(e,"ja_JP",5)) ) japanese = 1;
        !           193:     else if ( (e = getenv("LC_ALL")) &&
        !           194:       (!strncmp(e,"japan",5) || !strncmp(e,"ja_JP",5)) ) japanese = 1;
        !           195:     else if ( (e = getenv("LC_CTYPE")) &&
        !           196:       (!strncmp(e,"japan",5) || !strncmp(e,"ja_JP",5)) ) japanese = 1;
        !           197:     else if ( (e = getenv("LANG")) &&
        !           198:       (!strncmp(e,"japan",5) || !strncmp(e,"ja_JP",5)) ) japanese = 1;
        !           199:     if ( japanese )
        !           200:       asir_pager = search_executable("jless");
        !           201: #endif
        !           202:     asir_pager = search_executable("less");
        !           203:     if ( !asir_pager ) {
        !           204:       /* default: more */
        !           205:       asir_pager = (char *)malloc(strlen(MORE)+1);
        !           206:       strcpy(asir_pager,MORE);
        !           207:     }
        !           208:   }
        !           209:   if ( e = getenv("ASIRLOADPATH" ) ) {
        !           210:     for ( i = 0; ; i++, e = p+1 ) {
        !           211:       p = (char *)index(e,ENVDELIM);
        !           212:       if ( !p )
        !           213:         break;
        !           214:     }
        !           215:     i += 5;
        !           216:     ASIRLOADPATH_LEN=i;
1.15      takayama  217:         ASIRLOADPATH=(char **)MALLOC(sizeof(char *)*i);
1.33    ! noro      218:     for ( l = 0; l<i; l++) ASIRLOADPATH[l] = NULL;
        !           219:     e = getenv("ASIRLOADPATH");
        !           220:     for ( i = 0; ; i++, e = p+1 ) {
        !           221:       p = (char *)index(e,ENVDELIM);
        !           222:       l = p ? p-e : strlen(e); q = (char *)MALLOC(l+1);
        !           223:       if ( l ) {
        !           224:         strncpy(q,e,l); q[l] = 0; ASIRLOADPATH[i] = q;
        !           225:       }
        !           226:       if ( !p )
        !           227:         break;
        !           228:     }
1.16      takayama  229:     }else{
1.33    ! noro      230:     ASIRLOADPATH=(char **)MALLOC(sizeof(char *)*3);
        !           231:     ASIRLOADPATH[0] = NULL;
        !           232:   }
        !           233:
        !           234:   for ( i = 0; ASIRLOADPATH[i]; i++ );
        !           235:   if (asir_private_dir) ASIRLOADPATH[i++] = asir_private_dir;
        !           236:   if (asir_contrib_dir) ASIRLOADPATH[i++] = asir_contrib_dir;
        !           237:   if (asir_libdir) ASIRLOADPATH[i++] = asir_libdir;
        !           238:   ASIRLOADPATH[i++] = ".";
        !           239:   ASIRLOADPATH[i] = NULL;
1.1       noro      240: }
                    241:
1.29      fujimoto  242: #if defined(VISUAL) || defined(__MINGW32__)
1.21      noro      243: #define R_OK 4
                    244: #endif
                    245:
1.8       noro      246: void searchasirpath(char *name,char **pathp)
1.1       noro      247: {
1.33    ! noro      248:   char **p;
        !           249:   char *q;
        !           250:   size_t l;
        !           251:   int ret;
        !           252:   struct stat sbuf;
        !           253:
        !           254:   if ( (name[0] == '/') || ( name[0] == '.') || strchr(name,':')
        !           255:     || !ASIRLOADPATH[0] ) {
        !           256:     if ( access(name,R_OK) >= 0 ) {
        !           257:       ret = stat(name,&sbuf);
        !           258:       if ( ret == 0 && (sbuf.st_mode & S_IFMT) != S_IFDIR )
        !           259:         *pathp = name;
        !           260:       else
        !           261:         *pathp = 0;
        !           262:     } else
        !           263:       *pathp = 0;
        !           264:   } else {
        !           265:     for ( p = ASIRLOADPATH; *p; p++ ) {
        !           266:       l = strlen(*p)+strlen(name)+2;
        !           267:       q = (char *)ALLOCA(l); sprintf(q,"%s/%s",*p,name);
        !           268:       if ( access(q,R_OK) >= 0 ) {
        !           269:         ret = stat(q,&sbuf);
        !           270:         if ( ret == 0 && (sbuf.st_mode & S_IFMT) != S_IFDIR ) {
        !           271:           *pathp = (char *)MALLOC(l); strcpy(*pathp,q);
        !           272:           return;
        !           273:         }
        !           274:       }
        !           275:     }
        !           276:     *pathp = 0;
        !           277:   }
1.1       noro      278: }
                    279:
                    280: #define DELIM '/'
                    281:
1.8       noro      282: void loadasirfile(char *name0)
1.1       noro      283: {
1.33    ! noro      284:   FILE *in;
        !           285:   INFILE t;
        !           286:   extern char cppname[];
1.29      fujimoto  287: #if defined(VISUAL) || defined(__MINGW32__)
1.33    ! noro      288:   char ibuf1[BUFSIZ],ibuf2[BUFSIZ];
        !           289:   int ac;
        !           290:   char *av[BUFSIZ];
        !           291:   char *p;
        !           292:   FILE *fp;
        !           293:   char dname[BUFSIZ],tname0[BUFSIZ];
        !           294:   char *name,*tname;
        !           295:   int encoded;
        !           296:   static char prefix[BUFSIZ];
        !           297:   int process_id();
        !           298:   char CppExe[BUFSIZ];
        !           299:   char nbuf[BUFSIZ],tnbuf[BUFSIZ];
        !           300:   STRING rootdir;
        !           301:   void call_exe(char *,char **);
        !           302:
        !           303:   /* create the unique prefix */
        !           304:   if ( !prefix[0] )
        !           305:     sprintf(prefix,"asir%d",process_id());
        !           306:
        !           307:   fp = fopen(name0,"rb");
        !           308:   if ( getc(fp) == 0xff ) {
        !           309:     /* encoded file */
        !           310:     fclose(fp);
        !           311:     name = tempnam(NULL,prefix);
        !           312:     decrypt_file(name0,name);
        !           313:     /* the file 'name' created */
        !           314:     encoded = 1;
        !           315:   } else {
        !           316:     fclose(fp);
        !           317:     name = name0;
        !           318:     encoded = 0;
        !           319:   }
        !           320:
        !           321:   strcpy(dname,name);
        !           322:   av[0] = "cpp";
        !           323:   sprintf(nbuf,"\"%s\"",name);
        !           324:   av[1] = nbuf;
        !           325:   tname = tempnam(NULL,prefix);
        !           326:   sprintf(tnbuf,"\"%s\"",tname);
        !           327:   av[2] = tnbuf;
        !           328:   sprintf(ibuf1,"-I\"%s\"",asir_libdir);
        !           329:   av[3] = ibuf1;
        !           330:   av[4] = "-DWINDOWS";
        !           331:
        !           332:   /* set the include directory */
        !           333:   p = strrchr(dname,DELIM);
        !           334:   if ( !p ) {
        !           335:     av[5] = 0; ac = 5;
        !           336:   } else {
        !           337:     *p = 0;
        !           338:     sprintf(ibuf2,"-I\"%s\"",dname);
        !           339:     av[5] = ibuf2;
        !           340:     av[6] = 0; ac = 6;
        !           341:   }
        !           342: //  cpp_main(ac,av);
        !           343:   Pget_rootdir(&rootdir);
        !           344:   sprintf(CppExe,"%s\\bin\\cpp.exe",BDY(rootdir));
        !           345:   call_exe(CppExe,av);
        !           346:
        !           347:   /* the file tname created */
        !           348:   if ( encoded ) {
        !           349:     unlink(name); free(name);
        !           350:
        !           351:     strcpy(tname0,tname); free(tname);
        !           352:     tname = tempnam(NULL,prefix);
        !           353:
        !           354:     encrypt_file(tname0,tname);
        !           355:     /* the file tname created */
        !           356:     unlink(tname0);
        !           357:
        !           358:     in = fopen(tname,"rb");
        !           359:   } else
        !           360:     in = fopen(tname,"r");
        !           361:   if ( !in ) {
        !           362:     perror("fopen");
        !           363:     error("load : failed");
        !           364:   }
        !           365:   t = (INFILE)MALLOC(sizeof(struct oINFILE));
        !           366:   t->name = (char *)MALLOC(strlen(name0)+1); strcpy(t->name,name0);
        !           367:   t->tname = (char *)MALLOC(strlen(tname)+1); strcpy(t->tname,tname); free(tname);
        !           368:   t->encoded = encoded;
1.1       noro      369: #else
1.33    ! noro      370:   char com[BUFSIZ];
1.1       noro      371:
1.33    ! noro      372:   sprintf(com,"%s -I%s -D__FILE__=%s %s",cppname,asir_libdir,name0,name0); in = popen(com,"r");
        !           373:   if ( !in ) {
        !           374:     perror("popen");
        !           375:     error("load : failed");
        !           376:   }
        !           377:   t = (INFILE)MALLOC(sizeof(struct oINFILE));
        !           378:   t->name = (char *)MALLOC(strlen(name0)+1); strcpy(t->name,name0);
        !           379: #endif
        !           380:   t->fp = in; t->ln = 1; t->next = asir_infile; asir_infile = t;
        !           381:   main_parser = 1; /* XXX */
        !           382:   Eungetc(afternl(),asir_infile->fp);
        !           383:   if ( !EPVS->va )
        !           384:     asir_reallocarray((char **)&EPVS->va,(int *)&EPVS->asize,(int *)&EPVS->n,(int)sizeof(struct oPV));
1.1       noro      385: }
                    386:
1.8       noro      387: void execasirfile(char *name)
1.1       noro      388: {
1.33    ! noro      389:   loadasirfile(name);
        !           390:   if ( !SETJMP(asir_infile->jmpbuf) ) {
        !           391:     asir_infile->ready_for_longjmp = 1;
        !           392:     read_eval_loop();
        !           393:   }
        !           394:   closecurrentinput();
1.1       noro      395: }
                    396:
                    397: static NODE objfile = 0;
                    398:
1.8       noro      399: int loadfile(char *s)
1.1       noro      400: {
1.33    ! noro      401:   FILE *in;
1.1       noro      402:
1.33    ! noro      403:   if ( in = fopen(s,"r") ) {
        !           404:     fclose(in);
        !           405:     loadasirfile(s);
        !           406:     return 1;
        !           407:   } else
        !           408:     return 0;
1.1       noro      409: }
                    410:
1.8       noro      411: int loadfiles(NODE node) { return 0; }
1.1       noro      412:
                    413: static unsigned char encrypt_tab[128][2] = {
                    414: {137,40},{1,194},{133,79},{48,20},{254,76},{98,17},{110,233},{19,231},
                    415: {55,223},{75,65},{178,151},{85,222},{201,46},{51,243},{235,61},{106,113},
                    416: {116,121},{24,205},{146,244},{89,234},{163,173},{140,162},{188,45},{195,132},
                    417: {202,94},{236,87},{2,127},{253,47},{211,138},{58,252},{142,190},{77,209},
                    418: {16,53},{200,220},{99,165},{28,59},{78,0},{208,248},{50,229},{217,39},
                    419: {112,15},{18,60},{108,175},{10,67},{23,176},{49,245},{160,27},{171,219},
                    420: {105,144},{122,172},{255,114},{226,100},{70,117},{197,11},{180,36},{136,101},
                    421: {238,212},{125,120},{103,199},{38,119},{7,206},{181,228},{62,3},{30,185},
                    422: {154,63},{247,81},{187,80},{225,56},{210,221},{37,135},{155,52},{54,153},
                    423: {84,246},{166,90},{124,167},{41,184},{145,204},{147,198},{25,21},{72,97},
                    424: {66,128},{95,139},{93,42},{224,43},{35,143},{111,13},{82,249},{12,148},
                    425: {32,152},{186,168},{177,115},{216,251},{5,131},{123,170},{149,161},{213,203},
                    426: {126,150},{88,158},{74,169},{159,182},{156,26},{34,104},{8,91},{207,183},
                    427: {9,64},{83,241},{134,102},{69,33},{179,237},{129,250},{14,71},{230,4},
                    428: {218,6},{189,68},{193,22},{57,174},{215,214},{130,92},{240,31},{118,239},
                    429: {109,192},{232,196},{86,107},{96,141},{157,227},{164,242},{44,191},{29,73}
                    430: };
                    431:
                    432: static unsigned char decrypt_tab[] = {
                    433: 36,1,26,62,111,92,112,60,102,104,43,53,87,85,110,40,
                    434: 32,5,41,7,3,78,114,44,17,78,100,46,35,127,63,118,
                    435: 88,107,101,84,54,69,59,39,0,75,82,83,126,22,12,27,
                    436: 3,45,38,13,70,32,71,8,67,115,29,35,41,14,62,64,
                    437: 104,9,80,43,113,107,52,110,79,127,98,9,4,31,36,2,
                    438: 66,65,86,105,72,11,122,25,97,19,73,102,117,82,24,81,
                    439: 123,79,5,34,51,55,106,58,101,48,15,122,42,120,6,85,
                    440: 40,15,50,90,16,52,119,59,57,16,49,93,74,57,96,26,
                    441: 80,109,117,92,23,2,106,69,55,0,28,81,21,123,30,84,
                    442: 48,76,18,77,87,94,96,10,88,71,64,70,100,124,97,99,
                    443: 46,94,21,20,125,34,73,74,89,98,93,47,49,20,115,42,
                    444: 44,90,10,108,54,61,99,103,75,63,89,66,22,113,30,126,
                    445: 120,114,1,23,121,53,77,58,33,12,24,95,76,17,60,103,
                    446: 37,31,68,28,56,95,116,116,91,39,112,47,33,68,11,8,
                    447: 83,67,51,124,61,38,111,7,121,6,19,14,25,108,56,119,
                    448: 118,105,125,13,18,45,72,65,37,86,109,91,29,27,4,50
                    449: };
                    450:
                    451: unsigned char encrypt_char(unsigned char c)
                    452: {
1.33    ! noro      453:   return encrypt_tab[c][mt_genrand()&1];
1.1       noro      454: }
                    455:
                    456: unsigned char decrypt_char(unsigned char c)
                    457: {
1.33    ! noro      458:   return decrypt_tab[c];
1.1       noro      459: }
                    460:
1.8       noro      461: void encrypt_file(char *in,char *out)
1.1       noro      462: {
1.33    ! noro      463:   FILE *infp,*outfp;
        !           464:   int c;
1.1       noro      465:
1.33    ! noro      466:   infp = fopen(in,"r");
        !           467:   outfp = fopen(out,"wb");
        !           468:   while ( 1 ) {
        !           469:     c = getc(infp);
        !           470:     if ( c == EOF )
        !           471:       break;
        !           472:     putc(encrypt_char((unsigned char)c),outfp);
        !           473:   }
        !           474:   fclose(infp); fclose(outfp);
1.1       noro      475: }
                    476:
1.8       noro      477: void decrypt_file(char *in,char *out)
1.1       noro      478: {
1.33    ! noro      479:   FILE *infp,*outfp;
        !           480:   int c;
1.1       noro      481:
1.33    ! noro      482:   infp = fopen(in,"rb");
        !           483:   outfp = fopen(out,"w");
        !           484:   /* skip the magic number (=0xff) */
        !           485:   getc(infp);
        !           486:   while ( 1 ) {
        !           487:     c = getc(infp);
        !           488:     if ( c == EOF )
        !           489:       break;
        !           490:     putc(decrypt_char((unsigned char)c),outfp);
        !           491:   }
        !           492:   fclose(infp); fclose(outfp);
1.1       noro      493: }

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