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| 39e571d4 |
1 | #include <libc/stubs.h> |
| 2 | #include <io.h> |
| 3 | #include <errno.h> |
| 4 | #include <stdio.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <string.h> |
| 7 | #include <unistd.h> |
| 8 | #include <libc/file.h> |
| 9 | #include <process.h> |
| 10 | #include <fcntl.h> |
| 11 | #include <glob.h> |
| 12 | #include <sys/fsext.h> |
| 13 | #include <crt0.h> |
| 14 | #include "EXTERN.h" |
| 15 | #include "perl.h" |
| 16 | #include "XSUB.h" |
| 17 | |
| 18 | #if DJGPP==2 && DJGPP_MINOR<2 |
| 19 | |
| 20 | /* XXX I should rewrite this stuff someday. ML */ |
| 21 | |
| 22 | /* This is from popen.c */ |
| 23 | |
| 24 | /* Copyright (C) 1997 DJ Delorie, see COPYING.DJ for details */ |
| 25 | /* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */ |
| 26 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| 27 | |
| 28 | /* hold file pointer, descriptor, command, mode, temporary file name, |
| 29 | and the status of the command */ |
| 30 | struct pipe_list { |
| 31 | FILE *fp; |
| 32 | int fd; |
| 33 | int exit_status; |
| 34 | char *command, mode[10], temp_name[L_tmpnam]; |
| 35 | struct pipe_list *next; |
| 36 | }; |
| 37 | |
| 38 | /* static, global list pointer */ |
| 39 | static struct pipe_list *pl = NULL; |
| 40 | |
| 41 | FILE * |
| 42 | popen (const char *cm, const char *md) /* program name, pipe mode */ |
| 43 | { |
| 44 | struct pipe_list *l1; |
| 45 | |
| 46 | /* make new node */ |
| 47 | if ((l1 = (struct pipe_list *) malloc (sizeof (struct pipe_list))) == NULL) |
| 48 | return NULL; |
| 49 | |
| 50 | /* zero out elements to we'll get here */ |
| 51 | l1->fp = NULL; |
| 52 | l1->next = pl; |
| 53 | pl = l1; |
| 54 | |
| 55 | /* stick in elements we know already */ |
| 56 | l1->exit_status = -1; |
| 57 | strcpy (l1->mode, md); |
| 58 | if (tmpnam (l1->temp_name) == NULL) |
| 59 | return NULL; |
| 60 | |
| 61 | /* if can save the program name, build temp file */ |
| 62 | if ((l1->command = malloc(strlen(cm)+1))) |
| 63 | { |
| 64 | strcpy(l1->command, cm); |
| 65 | /* if caller wants to read */ |
| 66 | if (l1->mode[0] == 'r') |
| 67 | { |
| 68 | /* dup stdout */ |
| 69 | if ((l1->fd = dup (fileno (stdout))) == EOF) |
| 70 | l1->fp = NULL; |
| 71 | else if (!(l1->fp = freopen (l1->temp_name, "wb", stdout))) |
| 72 | l1->fp = NULL; |
| 73 | else |
| 74 | /* exec cmd */ |
| 75 | { |
| 76 | if ((l1->exit_status = system (cm)) == EOF) |
| 77 | l1->fp = NULL; |
| 78 | } |
| 79 | /* reopen real stdout */ |
| 80 | if (dup2 (l1->fd, fileno (stdout)) == EOF) |
| 81 | l1->fp = NULL; |
| 82 | else |
| 83 | /* open file for reader */ |
| 84 | l1->fp = fopen (l1->temp_name, l1->mode); |
| 85 | close(l1->fd); |
| 86 | } |
| 87 | else |
| 88 | /* if caller wants to write */ |
| 89 | if (l1->mode[0] == 'w') |
| 90 | /* open temp file */ |
| 91 | l1->fp = fopen (l1->temp_name, l1->mode); |
| 92 | else |
| 93 | /* unknown mode */ |
| 94 | l1->fp = NULL; |
| 95 | } |
| 96 | return l1->fp; /* return == NULL ? ERROR : OK */ |
| 97 | } |
| 98 | |
| 99 | int |
| 100 | pclose (FILE *pp) |
| 101 | { |
| 102 | struct pipe_list *l1, *l2; /* list pointers */ |
| 103 | int retval=0; /* function return value */ |
| 104 | |
| 105 | /* if pointer is first node */ |
| 106 | if (pl->fp == pp) |
| 107 | { |
| 108 | /* save node and take it out the list */ |
| 109 | l1 = pl; |
| 110 | pl = l1->next; |
| 111 | } |
| 112 | else |
| 113 | /* if more than one node in list */ |
| 114 | if (pl->next) |
| 115 | { |
| 116 | /* find right node */ |
| 117 | for (l2 = pl, l1 = pl->next; l1; l2 = l1, l1 = l2->next) |
| 118 | if (l1->fp == pp) |
| 119 | break; |
| 120 | |
| 121 | /* take node out of list */ |
| 122 | l2->next = l1->next; |
| 123 | } |
| 124 | else |
| 125 | return -1; |
| 126 | |
| 127 | /* if FILE not in list - return error */ |
| 128 | if (l1->fp == pp) |
| 129 | { |
| 130 | /* close the (hopefully) popen()ed file */ |
| 131 | fclose (l1->fp); |
| 132 | |
| 133 | /* if pipe was opened to write */ |
| 134 | if (l1->mode[0] == 'w') |
| 135 | { |
| 136 | /* dup stdin */ |
| 137 | if ((l1->fd = dup (fileno (stdin))) == EOF) |
| 138 | retval = -1; |
| 139 | else |
| 140 | /* open temp stdin */ |
| 141 | if (!(l1->fp = freopen (l1->temp_name, "rb", stdin))) |
| 142 | retval = -1; |
| 143 | else |
| 144 | /* exec cmd */ |
| 145 | if ((retval = system (l1->command)) != EOF) |
| 146 | { |
| 147 | /* reopen stdin */ |
| 148 | if (dup2 (l1->fd, fileno (stdin)) == EOF) |
| 149 | retval = -1; |
| 150 | } |
| 151 | close(l1->fd); |
| 152 | } |
| 153 | else |
| 154 | /* if pipe was opened to read, return the exit status we saved */ |
| 155 | if (l1->mode[0] == 'r') |
| 156 | retval = l1->exit_status; |
| 157 | else |
| 158 | /* invalid mode */ |
| 159 | retval = -1; |
| 160 | } |
| 161 | remove (l1->temp_name); /* remove temporary file */ |
| 162 | free (l1->command); /* dealloc memory */ |
| 163 | free (l1); /* dealloc memory */ |
| 164 | |
| 165 | return retval; /* retval==0 ? OK : ERROR */ |
| 166 | } |
| 167 | |
| 168 | #endif |
| 169 | |
| 170 | /**/ |
| 171 | |
| 172 | #define EXECF_SPAWN 0 |
| 173 | #define EXECF_EXEC 1 |
| 174 | |
| 175 | static int |
| 176 | convretcode (int rc,char *prog,int fl) |
| 177 | { |
| 178 | if (rc < 0 && dowarn) |
| 179 | warn ("Can't %s \"%s\": %s",fl ? "exec" : "spawn",prog,Strerror (errno)); |
| 180 | if (rc > 0) |
| 181 | return rc <<= 8; |
| 182 | if (rc < 0) |
| 183 | return 255 << 8; |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | int |
| 188 | do_aspawn (SV *really,SV **mark,SV **sp) |
| 189 | { |
| 190 | dTHR; |
| 191 | int rc; |
| 192 | char **a,*tmps,**argv; |
| 193 | |
| 194 | if (sp<=mark) |
| 195 | return -1; |
| 196 | a=argv=(char**) alloca ((sp-mark+3)*sizeof (char*)); |
| 197 | |
| 198 | while (++mark <= sp) |
| 199 | if (*mark) |
| 200 | *a++ = SvPVx(*mark, na); |
| 201 | else |
| 202 | *a++ = ""; |
| 203 | *a = Nullch; |
| 204 | |
| 205 | if (argv[0][0] != '/' && argv[0][0] != '\\' |
| 206 | && !(argv[0][0] && argv[0][1] == ':' |
| 207 | && (argv[0][2] == '/' || argv[0][2] != '\\')) |
| 208 | ) /* will swawnvp use PATH? */ |
| 209 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
| 210 | |
| 211 | if (really && *(tmps = SvPV(really, na))) |
| 212 | rc=spawnvp (P_WAIT,tmps,argv); |
| 213 | else |
| 214 | rc=spawnvp (P_WAIT,argv[0],argv); |
| 215 | |
| 216 | return convretcode (rc,argv[0],EXECF_SPAWN); |
| 217 | } |
| 218 | |
| 219 | #define EXTRA "\x00\x00\x00\x00\x00\x00" |
| 220 | |
| 221 | int |
| 222 | do_spawn2 (char *cmd,int execf) |
| 223 | { |
| 224 | char **a,*s,*shell,*metachars; |
| 225 | int rc,unixysh; |
| 226 | |
| 227 | if ((shell=getenv("SHELL"))==NULL && (shell=getenv("COMSPEC"))==NULL) |
| 228 | shell="c:\\command.com" EXTRA; |
| 229 | |
| 230 | unixysh=_is_unixy_shell (shell); |
| 231 | metachars=unixysh ? "$&*(){}[]'\";\\?>|<~`\n" EXTRA : "*?[|<>\"\\" EXTRA; |
| 232 | |
| 233 | while (*cmd && isSPACE(*cmd)) |
| 234 | cmd++; |
| 235 | |
| 236 | if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7])) |
| 237 | cmd+=5; |
| 238 | |
| 239 | /* save an extra exec if possible */ |
| 240 | /* see if there are shell metacharacters in it */ |
| 241 | if (strstr (cmd,"...")) |
| 242 | goto doshell; |
| 243 | if (unixysh) |
| 244 | { |
| 245 | if (*cmd=='.' && isSPACE (cmd[1])) |
| 246 | goto doshell; |
| 247 | if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4])) |
| 248 | goto doshell; |
| 249 | for (s=cmd; *s && isALPHA (*s); s++) ; /* catch VAR=val gizmo */ |
| 250 | if (*s=='=') |
| 251 | goto doshell; |
| 252 | } |
| 253 | for (s=cmd; *s; s++) |
| 254 | if (strchr (metachars,*s)) |
| 255 | { |
| 256 | if (*s=='\n' && s[1]=='\0') |
| 257 | { |
| 258 | *s='\0'; |
| 259 | break; |
| 260 | } |
| 261 | doshell: |
| 262 | if (execf==EXECF_EXEC) |
| 263 | return convretcode (execl (shell,shell,unixysh ? "-c" : "/c",cmd,NULL),cmd,execf); |
| 264 | return convretcode (system (cmd),cmd,execf); |
| 265 | } |
| 266 | |
| 267 | New (1303,Argv,(s-cmd)/2+2,char*); |
| 268 | Cmd=savepvn (cmd,s-cmd); |
| 269 | a=Argv; |
| 270 | for (s=Cmd; *s;) { |
| 271 | while (*s && isSPACE (*s)) s++; |
| 272 | if (*s) |
| 273 | *(a++)=s; |
| 274 | while (*s && !isSPACE (*s)) s++; |
| 275 | if (*s) |
| 276 | *s++='\0'; |
| 277 | } |
| 278 | *a=Nullch; |
| 279 | if (!Argv[0]) |
| 280 | return -1; |
| 281 | |
| 282 | if (execf==EXECF_EXEC) |
| 283 | rc=execvp (Argv[0],Argv); |
| 284 | else |
| 285 | rc=spawnvp (P_WAIT,Argv[0],Argv); |
| 286 | return convretcode (rc,Argv[0],execf); |
| 287 | } |
| 288 | |
| 289 | int |
| 290 | do_spawn (char *cmd) |
| 291 | { |
| 292 | return do_spawn2 (cmd,EXECF_SPAWN); |
| 293 | } |
| 294 | |
| 295 | bool |
| 296 | do_exec (char *cmd) |
| 297 | { |
| 298 | do_spawn2 (cmd,EXECF_EXEC); |
| 299 | return FALSE; |
| 300 | } |
| 301 | |
| 302 | /**/ |
| 303 | |
| 304 | struct globinfo |
| 305 | { |
| 306 | int fd; |
| 307 | char *matches; |
| 308 | size_t size; |
| 309 | }; |
| 310 | |
| 311 | #define MAXOPENGLOBS 10 |
| 312 | |
| 313 | static struct globinfo myglobs[MAXOPENGLOBS]; |
| 314 | |
| 315 | static struct globinfo * |
| 316 | searchfd (int fd) |
| 317 | { |
| 318 | int ic; |
| 319 | for (ic=0; ic<MAXOPENGLOBS; ic++) |
| 320 | if (myglobs[ic].fd==fd) |
| 321 | return myglobs+ic; |
| 322 | return NULL; |
| 323 | } |
| 324 | |
| 325 | static int |
| 326 | glob_handler (__FSEXT_Fnumber n,int *rv,va_list args) |
| 327 | { |
| 328 | unsigned ic; |
| 329 | struct globinfo *gi; |
| 330 | switch (n) |
| 331 | { |
| 332 | case __FSEXT_open: |
| 333 | { |
| 334 | char *p1,*pattern,*name=va_arg (args,char*); |
| 335 | STRLEN len; |
| 336 | glob_t pglob; |
| 337 | |
| 338 | if (strnNE (name,"/dev/dosglob/",13)) |
| 339 | break; |
| 340 | if ((gi=searchfd (-1)) == NULL) |
| 341 | break; |
| 342 | |
| 343 | pattern=alloca (strlen (name+=13)+1); |
| 344 | strcpy (pattern,name); |
| 345 | if (!_USE_LFN) |
| 346 | strlwr (pattern); |
| 347 | ic=pglob.gl_pathc=0; |
| 348 | pglob.gl_pathv=NULL; |
| 349 | while (pattern) |
| 350 | { |
| 351 | if ((p1=strchr (pattern,' '))!=NULL) |
| 352 | *p1=0; |
| 353 | glob (pattern,ic,0,&pglob); |
| 354 | ic=GLOB_APPEND; |
| 355 | if ((pattern=p1)!=NULL) |
| 356 | pattern++; |
| 357 | } |
| 358 | for (ic=len=0; ic<pglob.gl_pathc; ic++) |
| 359 | len+=1+strlen (pglob.gl_pathv[ic]); |
| 360 | if (len) |
| 361 | { |
| 362 | if ((gi->matches=p1=(char*) malloc (gi->size=len))==NULL) |
| 363 | break; |
| 364 | for (ic=0; ic<pglob.gl_pathc; ic++) |
| 365 | { |
| 366 | strcpy (p1,pglob.gl_pathv[ic]); |
| 367 | p1+=strlen (p1)+1; |
| 368 | } |
| 369 | } |
| 370 | else |
| 371 | { |
| 372 | if ((gi->matches=strdup (name))==NULL) |
| 373 | break; |
| 374 | gi->size=strlen (name)+1; |
| 375 | } |
| 376 | globfree (&pglob); |
| 377 | gi->fd=*rv=__FSEXT_alloc_fd (glob_handler); |
| 378 | return 1; |
| 379 | } |
| 380 | case __FSEXT_read: |
| 381 | { |
| 382 | int fd=va_arg (args,int); |
| 383 | char *buf=va_arg (args,char*); |
| 384 | size_t siz=va_arg (args,size_t); |
| 385 | |
| 386 | if ((gi=searchfd (fd))==NULL) |
| 387 | break; |
| 388 | |
| 389 | ic=tell (fd); |
| 390 | if (siz+ic>=gi->size) |
| 391 | siz=gi->size-ic; |
| 392 | memcpy (buf,ic+gi->matches,siz); |
| 393 | lseek (fd,siz,1); |
| 394 | *rv=siz; |
| 395 | return 1; |
| 396 | } |
| 397 | case __FSEXT_close: |
| 398 | { |
| 399 | int fd=va_arg (args,int); |
| 400 | |
| 401 | if ((gi=searchfd (fd))==NULL) |
| 402 | break; |
| 403 | free (gi->matches); |
| 404 | gi->fd=-1; |
| 405 | break; |
| 406 | } |
| 407 | default: |
| 408 | break; |
| 409 | } |
| 410 | return 0; |
| 411 | } |
| 412 | |
| 413 | static |
| 414 | XS(dos_GetCwd) |
| 415 | { |
| 416 | dXSARGS; |
| 417 | |
| 418 | if (items) |
| 419 | croak ("Usage: Dos::GetCwd()"); |
| 420 | { |
| 421 | char tmp[PATH_MAX+2]; |
| 422 | ST(0)=sv_newmortal (); |
| 423 | if (getcwd (tmp,PATH_MAX+1)!=NULL) |
| 424 | sv_setpv ((SV*)ST(0),tmp); |
| 425 | } |
| 426 | XSRETURN (1); |
| 427 | } |
| 428 | |
| 429 | static |
| 430 | XS(dos_UseLFN) |
| 431 | { |
| 432 | dXSARGS; |
| 433 | XSRETURN_IV (_USE_LFN); |
| 434 | } |
| 435 | |
| 436 | void |
| 437 | init_os_extras() |
| 438 | { |
| 439 | char *file = __FILE__; |
| 440 | |
| 441 | dXSUB_SYS; |
| 442 | |
| 443 | newXS ("Dos::GetCwd",dos_GetCwd,file); |
| 444 | newXS ("Dos::UseLFN",dos_UseLFN,file); |
| 445 | |
| 446 | /* install my File System Extension for globbing */ |
| 447 | __FSEXT_add_open_handler (glob_handler); |
| 448 | memset (myglobs,-1,sizeof (myglobs)); |
| 449 | } |
| 450 | |
| 451 | static char *perlprefix; |
| 452 | |
| 453 | #define PERL5 "/perl5" |
| 454 | |
| 455 | char *djgpp_pathexp (const char *p) |
| 456 | { |
| 457 | static char expp[PATH_MAX]; |
| 458 | strcpy (expp,perlprefix); |
| 459 | switch (p[0]) |
| 460 | { |
| 461 | case 'B': |
| 462 | strcat (expp,"/bin"); |
| 463 | break; |
| 464 | case 'S': |
| 465 | strcat (expp,"/lib" PERL5 "/site"); |
| 466 | break; |
| 467 | default: |
| 468 | strcat (expp,"/lib" PERL5); |
| 469 | break; |
| 470 | } |
| 471 | return expp; |
| 472 | } |
| 473 | |
| 474 | void |
| 475 | Perl_DJGPP_init (int *argcp,char ***argvp) |
| 476 | { |
| 477 | char *p; |
| 478 | |
| 479 | perlprefix=strdup (**argvp); |
| 480 | strlwr (perlprefix); |
| 481 | if ((p=strrchr (perlprefix,'/'))!=NULL) |
| 482 | { |
| 483 | *p=0; |
| 484 | if (strEQ (p-4,"/bin")) |
| 485 | p[-4]=0; |
| 486 | } |
| 487 | else |
| 488 | strcpy (perlprefix,".."); |
| 489 | } |
| 490 | |
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