1: /*
2: ================================================================================
3: RPL/2 (R) version 4.1.3
4: Copyright (C) 1989-2011 Dr. BERTRAND Joël
5:
6: This file is part of RPL/2.
7:
8: RPL/2 is free software; you can redistribute it and/or modify it
9: under the terms of the CeCILL V2 License as published by the french
10: CEA, CNRS and INRIA.
11:
12: RPL/2 is distributed in the hope that it will be useful, but WITHOUT
13: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL V2 License
15: for more details.
16:
17: You should have received a copy of the CeCILL License
18: along with RPL/2. If not, write to info@cecill.info.
19: ================================================================================
20: */
21:
22:
23: #include "rpl-conv.h"
24: #include "tex-conv.h"
25:
26: #include <stdarg.h>
27:
28: #undef fprintf
29: #undef printf
30:
31:
32: /*
33: ================================================================================
34: Fonction de translitération
35: ================================================================================
36: Entrées :
37: --------------------------------------------------------------------------------
38: Sorties :
39: --------------------------------------------------------------------------------
40: Effets de bord : néant
41: ================================================================================
42: */
43:
44: unsigned char *
45: transliteration(struct_processus *s_etat_processus,
46: unsigned char *chaine_entree,
47: unsigned char *codage_entree,
48: unsigned char *codage_sortie)
49: {
50: unsigned char *codage_sortie_transliteral;
51: unsigned char *tampon;
52:
53: if ((codage_sortie_transliteral = malloc((strlen(codage_sortie)
54: + strlen("//TRANSLIT") + 1) * sizeof(unsigned char))) == NULL)
55: {
56: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
57: return(NULL);
58: }
59:
60: sprintf(codage_sortie_transliteral, "%s//TRANSLIT", codage_sortie);
61:
62: tampon = reencodage(s_etat_processus, chaine_entree,
63: codage_entree, codage_sortie_transliteral);
64: free(codage_sortie_transliteral);
65:
66: return(tampon);
67: }
68:
69:
70: unsigned char *
71: reencodage(struct_processus *s_etat_processus,
72: unsigned char *chaine_entree,
73: unsigned char *codage_entree,
74: unsigned char *codage_sortie)
75: {
76: # define d_LONGUEUR 1024
77:
78: iconv_t transcodage;
79:
80: size_t ios;
81: size_t longueur_entree;
82: size_t longueur_sortie;
83:
84: unsigned char *buffer_entree;
85: unsigned char *buffer_sortie;
86: unsigned char *chaine_sortie;
87: unsigned char *pointeur;
88: unsigned char *tampon;
89:
90: if ((transcodage = iconv_open(codage_sortie, codage_entree)) ==
91: (iconv_t) -1)
92: {
93: (*s_etat_processus).erreur_execution = d_ex_erreur_transcodage;
94: return(NULL);
95: }
96:
97: buffer_entree = chaine_entree;
98: longueur_entree = strlen(chaine_entree);
99:
100: if ((chaine_sortie = malloc(sizeof(unsigned char))) == NULL)
101: {
102: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
103: return(NULL);
104: }
105:
106: chaine_sortie[0] = d_code_fin_chaine;
107:
108: if ((buffer_sortie = malloc((d_LONGUEUR + 1) * sizeof(unsigned char)))
109: == NULL)
110: {
111: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
112: return(NULL);
113: }
114:
115: do
116: {
117: longueur_sortie = d_LONGUEUR;
118: pointeur = buffer_sortie;
119:
120: if ((ios = iconv(transcodage, (char **) &buffer_entree,
121: &longueur_entree, (char **) &pointeur, &longueur_sortie))
122: == (size_t) -1)
123: {
124: // On autorise les erreurs EINVAL et EILSEQ
125: if (errno == EILSEQ)
126: {
127: free(buffer_sortie);
128: free(chaine_sortie);
129:
130: (*s_etat_processus).erreur_execution = d_ex_erreur_transcodage;
131: return(NULL);
132: }
133: }
134:
135: tampon = chaine_sortie;
136: (*pointeur) = d_code_fin_chaine;
137:
138: if ((chaine_sortie = malloc((strlen(tampon) + strlen(buffer_sortie) + 1)
139: * sizeof(unsigned char))) == NULL)
140: {
141: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
142: return(NULL);
143: }
144:
145: sprintf(chaine_sortie, "%s%s", tampon, buffer_sortie);
146: free(tampon);
147: } while((*buffer_entree) != d_code_fin_chaine);
148:
149: free(buffer_sortie);
150: iconv_close(transcodage);
151:
152: return(chaine_sortie);
153: }
154:
155:
156: /*
157: ================================================================================
158: Fonctions spécifiques
159: ================================================================================
160: Entrées :
161: --------------------------------------------------------------------------------
162: Sorties :
163: --------------------------------------------------------------------------------
164: Effets de bord : néant
165: ================================================================================
166: */
167:
168: void
169: localisation_courante(struct_processus *s_etat_processus)
170: {
171: char **arguments;
172:
173: int ios;
174: int pipes_entree[2];
175: int pipes_erreur[2];
176: int pipes_sortie[2];
177: int status;
178:
179: long i;
180: long nombre_arguments;
181:
182: pid_t pid;
183:
184: sigset_t oldset;
185: sigset_t set;
186:
187: struct sigaction action_passee;
188:
189: unsigned char *tampon;
190:
191: unsigned long longueur_lecture;
192: unsigned long nombre_iterations;
193: unsigned long pointeur;
194:
195: if ((arguments = malloc(3 * sizeof(char **))) == NULL)
196: {
197: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
198: return;
199: }
200:
201: if ((arguments[0] = malloc((strlen("locale") + 1) * sizeof(char))) == NULL)
202: {
203: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
204: return;
205: }
206:
207: if ((arguments[1] = malloc((strlen("charmap") + 1) * sizeof(char))) == NULL)
208: {
209: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
210: return;
211: }
212:
213: strcpy(arguments[0], "locale");
214: strcpy(arguments[1], "charmap");
215: arguments[2] = NULL;
216:
217: nombre_arguments = 2;
218:
219: if (pipe(pipes_entree) != 0)
220: {
221: (*s_etat_processus).erreur_systeme = d_es_processus;
222: return;
223: }
224:
225: if (pipe(pipes_sortie) != 0)
226: {
227: (*s_etat_processus).erreur_systeme = d_es_processus;
228: return;
229: }
230:
231: if (pipe(pipes_erreur) != 0)
232: {
233: (*s_etat_processus).erreur_systeme = d_es_processus;
234: return;
235: }
236:
237: sigfillset(&set);
238: pthread_sigmask(SIG_BLOCK, &set, &oldset);
239:
240: verrouillage_threads_concurrents(s_etat_processus);
241: pid = fork();
242: deverrouillage_threads_concurrents(s_etat_processus);
243:
244: pthread_sigmask(SIG_SETMASK, &oldset, NULL);
245: sigpending(&set);
246:
247: if (pid < 0)
248: {
249: if (close(pipes_entree[0]) != 0)
250: {
251: (*s_etat_processus).erreur_systeme = d_es_processus;
252: return;
253: }
254:
255: if (close(pipes_entree[1]) != 0)
256: {
257: (*s_etat_processus).erreur_systeme = d_es_processus;
258: return;
259: }
260:
261: if (close(pipes_sortie[0]) != 0)
262: {
263: (*s_etat_processus).erreur_systeme = d_es_processus;
264: return;
265: }
266:
267: if (close(pipes_sortie[1]) != 0)
268: {
269: (*s_etat_processus).erreur_systeme = d_es_processus;
270: return;
271: }
272:
273: if (close(pipes_erreur[0]) != 0)
274: {
275: (*s_etat_processus).erreur_systeme = d_es_processus;
276: return;
277: }
278:
279: if (close(pipes_erreur[1]) != 0)
280: {
281: (*s_etat_processus).erreur_systeme = d_es_processus;
282: return;
283: }
284:
285: (*s_etat_processus).erreur_systeme = d_es_processus;
286: return;
287: }
288: else if (pid == 0)
289: {
290: if (close(pipes_entree[1]) != 0)
291: {
292: (*s_etat_processus).erreur_systeme = d_es_processus;
293: return;
294: }
295:
296: if (close(pipes_sortie[0]) != 0)
297: {
298: (*s_etat_processus).erreur_systeme = d_es_processus;
299: return;
300: }
301:
302: if (close(pipes_erreur[0]) != 0)
303: {
304: (*s_etat_processus).erreur_systeme = d_es_processus;
305: return;
306: }
307:
308: if (pipes_entree[0] != STDIN_FILENO)
309: {
310: if (dup2(pipes_entree[0], STDIN_FILENO) == -1)
311: {
312: (*s_etat_processus).erreur_systeme = d_es_processus;
313: return;
314: }
315: }
316:
317: if (pipes_sortie[1] != STDOUT_FILENO)
318: {
319: if (dup2(pipes_sortie[1], STDOUT_FILENO) == -1)
320: {
321: (*s_etat_processus).erreur_systeme = d_es_processus;
322: return;
323: }
324: }
325:
326: if (pipes_sortie[1] != STDERR_FILENO)
327: {
328: if (dup2(pipes_sortie[1], STDERR_FILENO) == -1)
329: {
330: (*s_etat_processus).erreur_systeme = d_es_processus;
331: return;
332: }
333: }
334:
335: if (nombre_arguments != 0)
336: {
337: execvp(arguments[0], arguments);
338: }
339: else
340: {
341: exit(EXIT_SUCCESS);
342: }
343:
344: /*
345: * L'appel système execvp() a généré une erreur et n'a pu exécuter
346: * argument[0] (fichier non exécutable ou inexistant).
347: */
348:
349: close(pipes_entree[0]);
350: close(pipes_sortie[1]);
351:
352: for(i = 0; i < nombre_arguments; i++)
353: {
354: free(arguments[i]);
355: }
356:
357: free(arguments);
358: (*s_etat_processus).erreur_systeme = d_es_processus;
359:
360: /*
361: * Envoi d'une erreur dans le pipe idoine. On ne regarde pas
362: * le nombre d'octets écrits car l'erreur ne pourra de toute
363: * façon pas être traitée.
364: */
365:
366: write_atomic(s_etat_processus, pipes_erreur[1], " ", 1);
367: close(pipes_erreur[1]);
368:
369: exit(EXIT_SUCCESS);
370: }
371: else
372: {
373: if (close(pipes_entree[0]) != 0)
374: {
375: (*s_etat_processus).erreur_systeme = d_es_processus;
376: return;
377: }
378:
379: if (close(pipes_sortie[1]) != 0)
380: {
381: (*s_etat_processus).erreur_systeme = d_es_processus;
382: return;
383: }
384:
385: if (close(pipes_erreur[1]) != 0)
386: {
387: (*s_etat_processus).erreur_systeme = d_es_processus;
388: return;
389: }
390:
391: if (close(pipes_entree[1]) != 0)
392: {
393: (*s_etat_processus).erreur_systeme = d_es_processus;
394: return;
395: }
396:
397: do
398: {
399: if (kill(pid, 0) != 0)
400: {
401: break;
402: }
403:
404: /*
405: * Récupération de la valeur de retour du processus détaché
406: */
407:
408: if (pthread_mutex_unlock(&((*s_etat_processus).mutex_fork)) != 0)
409: {
410: (*s_etat_processus).erreur_systeme = d_es_processus;
411: return;
412: }
413:
414: if (waitpid(pid, &status, 0) == -1)
415: {
416: if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork)) != 0)
417: {
418: (*s_etat_processus).erreur_systeme = d_es_processus;
419: return;
420: }
421:
422: (*s_etat_processus).erreur_systeme = d_es_processus;
423: return;
424: }
425:
426: if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork)) != 0)
427: {
428: (*s_etat_processus).erreur_systeme = d_es_processus;
429: return;
430: }
431: } while((!WIFEXITED(status)) && (!WIFSIGNALED(status)));
432:
433: longueur_lecture = 256;
434: pointeur = 0;
435: nombre_iterations = 1;
436:
437: if ((tampon = malloc((longueur_lecture + 1) *
438: sizeof(unsigned char))) == NULL)
439: {
440: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
441: return;
442: }
443:
444: tampon[0] = d_code_fin_chaine;
445:
446: if (pthread_mutex_unlock(&((*s_etat_processus).mutex_fork)) != 0)
447: {
448: (*s_etat_processus).erreur_systeme = d_es_processus;
449: return;
450: }
451:
452: while((ios = read_atomic(s_etat_processus,
453: pipes_sortie[0], &(tampon[pointeur]),
454: longueur_lecture)) > 0)
455: {
456: if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork)) != 0)
457: {
458: (*s_etat_processus).erreur_systeme = d_es_processus;
459: return;
460: }
461:
462: tampon[pointeur + ios] = d_code_fin_chaine;
463: pointeur += longueur_lecture;
464: nombre_iterations++;
465:
466: if ((tampon = realloc(tampon,
467: ((nombre_iterations * longueur_lecture) + 1) *
468: sizeof(unsigned char))) == NULL)
469: {
470: (*s_etat_processus).erreur_systeme =
471: d_es_allocation_memoire;
472: return;
473: }
474:
475: if (pthread_mutex_unlock(&((*s_etat_processus).mutex_fork)) != 0)
476: {
477: (*s_etat_processus).erreur_systeme = d_es_processus;
478: return;
479: }
480: }
481:
482: if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork)) != 0)
483: {
484: (*s_etat_processus).erreur_systeme = d_es_processus;
485: return;
486: }
487:
488: if (strlen(tampon) == 0)
489: {
490: (*s_etat_processus).erreur_systeme = d_es_processus;
491: return;
492: }
493:
494: tampon[strlen(tampon) - 1] = d_code_fin_chaine;
495:
496: if (ios == -1)
497: {
498: (*s_etat_processus).erreur_systeme = d_es_processus;
499: return;
500: }
501:
502: if (close(pipes_sortie[0]) != 0)
503: {
504: (*s_etat_processus).erreur_systeme = d_es_processus;
505: return;
506: }
507:
508: if (strlen(tampon) > 0)
509: {
510: (*s_etat_processus).localisation = tampon;
511: }
512: else
513: {
514: free(tampon);
515:
516: if (((*s_etat_processus).localisation = malloc((strlen(d_locale)
517: + 1) * sizeof(unsigned char))) == NULL)
518: {
519: (*s_etat_processus).erreur_systeme = d_es_processus;
520: return;
521: }
522:
523: strcpy((*s_etat_processus).localisation, d_locale);
524: }
525:
526: if (sigaction(SIGINT, &action_passee, NULL) != 0)
527: {
528: for(i = 0; i < nombre_arguments; i++)
529: {
530: free(arguments[i]);
531: }
532:
533: free(arguments);
534: (*s_etat_processus).erreur_systeme = d_es_signal;
535: return;
536: }
537:
538: for(i = 0; i < nombre_arguments; i++)
539: {
540: free(arguments[i]);
541: }
542:
543: free(arguments);
544:
545: if (pthread_mutex_unlock(&((*s_etat_processus).mutex_fork)) != 0)
546: {
547: (*s_etat_processus).erreur_systeme = d_es_processus;
548: return;
549: }
550:
551: if (read_atomic(s_etat_processus, pipes_erreur[0], tampon, 1) > 0)
552: {
553: // Le processus fils renvoie une erreur.
554:
555: free(tampon);
556:
557: if (((*s_etat_processus).localisation = malloc((strlen(d_locale)
558: + 1) * sizeof(unsigned char))) == NULL)
559: {
560: (*s_etat_processus).erreur_systeme = d_es_processus;
561: return;
562: }
563:
564: strcpy((*s_etat_processus).localisation, d_locale);
565: }
566:
567: if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork)) != 0)
568: {
569: (*s_etat_processus).erreur_systeme = d_es_processus;
570: return;
571: }
572:
573: if (close(pipes_erreur[0]) != 0)
574: {
575: (*s_etat_processus).erreur_systeme = d_es_processus;
576: return;
577: }
578: }
579:
580: return;
581: }
582:
583:
584: int
585: transliterated_fprintf(struct_processus *s_etat_processus, file *flux,
586: const char *format, ...)
587: {
588: int ios;
589:
590: unsigned char *tampon;
591: unsigned char *tampon2;
592:
593: va_list arguments;
594:
595: va_start(arguments, format);
596:
597: # ifdef OS2
598: unsigned char *ptr_e;;
599: unsigned char *ptr_l;;
600: unsigned char *tampon3;
601:
602: unsigned long i;
603: # endif
604:
605: if (valsprintf(&tampon, format, arguments) < 0)
606: {
607: va_end(arguments);
608:
609: if (s_etat_processus != NULL)
610: {
611: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
612: }
613:
614: return(-1);
615: }
616:
617: va_end(arguments);
618:
619: if (s_etat_processus != NULL)
620: {
621: if ((tampon2 = transliteration(s_etat_processus, tampon,
622: d_locale, (*s_etat_processus).localisation)) == NULL)
623: {
624: free(tampon);
625: return(-1);
626: }
627:
628: free(tampon);
629: }
630: else
631: {
632: tampon2 = tampon;
633: }
634:
635: # ifdef OS2
636: if ((flux == stdin) || (flux == stdout))
637: {
638: i = 0;
639: ptr_l = tampon2;
640:
641: while((*ptr_l) != d_code_fin_chaine)
642: {
643: if ((*ptr_l) == '\n')
644: {
645: i++;
646: }
647:
648: ptr_l++;
649: }
650:
651: if ((tampon3 = malloc((strlen(tampon2) + i + 1) *
652: sizeof(unsigned char))) == NULL)
653: {
654: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
655: return(NULL);
656: }
657:
658: ptr_e = tampon3;
659: ptr_l = tampon2;
660:
661: while((*ptr_l) != d_code_fin_chaine)
662: {
663: (*ptr_e) = (*ptr_l);
664:
665: if ((*ptr_l) == '\n')
666: {
667: (*(++ptr_e)) = '\r';
668: ptr_e++;
669: ptr_l++;
670: }
671: else
672: {
673: ptr_e++;
674: ptr_l++;
675: }
676: }
677:
678: (*ptr_e) = d_code_fin_chaine;
679:
680: free(tampon2);
681: tampon2 = tampon3;
682: }
683: # endif
684:
685: # ifdef SunOS
686: while((ios = fprintf(flux, "%s", tampon2)) < 0)
687: {
688: if ((errno != EINTR) && (errno != 0))
689: {
690: break;
691: }
692: }
693: # else
694: ios = fprintf(flux, "%s", tampon2);
695: # endif
696:
697: free(tampon2);
698:
699: return(ios);
700: }
701:
702:
703: int
704: tex_fprintf(struct_processus *s_etat_processus,
705: file *flux, const char *format, ...)
706: {
707: int ios;
708:
709: unsigned char *tampon;
710: unsigned char *tampon2;
711:
712: va_list arguments;
713:
714: va_start(arguments, format);
715:
716: if (valsprintf(&tampon, format, arguments) < 0)
717: {
718: va_end(arguments);
719:
720: if (s_etat_processus != NULL)
721: {
722: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
723: }
724:
725: return(-1);
726: }
727:
728: va_end(arguments);
729:
730: if ((tampon2 = transliteration(s_etat_processus, tampon,
731: d_locale, ds_tex_encodage_3)) == NULL)
732: {
733: free(tampon);
734: return(-1);
735: }
736:
737: free(tampon);
738:
739: # ifdef SunOS
740: while((ios = fprintf(flux, "%s", tampon2)) < 0)
741: {
742: if ((errno != EINTR) && (errno != 0))
743: {
744: break;
745: }
746: }
747: # else
748: ios = fprintf(flux, "%s", tampon2);
749: # endif
750:
751: free(tampon2);
752:
753: return(ios);
754: }
755:
756: #undef readline
757:
758: unsigned char *
759: readline_wrapper(unsigned char *invite)
760: {
761: unsigned char *chaine;
762:
763: chaine = readline(invite);
764: printf("\r");
765:
766: return(chaine);
767: }
768:
769:
770: #define fprintf NULL
771: #define printf NULL
772:
773: // vim: ts=4
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