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|000042b0| 3e 6e 61 6d 65 29 3b 0d | 09 7d 0d 20 20 20 20 7d |>name);.|.}.    }|
|000042c0| 0d 0d 20 20 61 6c 77 61 | 79 73 5f 64 65 6c 65 74 |..  alwa|ys_delet|
|000042d0| 65 5f 71 75 65 75 65 20 | 3d 20 30 3b 0d 7d 0d 0d |e_queue |= 0;.}..|
|000042e0| 2f 2a 20 44 65 6c 65 74 | 65 20 61 6c 6c 20 74 68 |/* Delet|e all th|
|000042f0| 65 20 66 69 6c 65 73 20 | 74 6f 20 62 65 20 64 65 |e files |to be de|
|00004300| 6c 65 74 65 64 20 6f 6e | 20 65 72 72 6f 72 2e 20 |leted on| error. |
|00004310| 20 2a 2f 0d 0d 76 6f 69 | 64 0d 64 65 6c 65 74 65 | */..voi|d.delete|
|00004320| 5f 66 61 69 6c 75 72 65 | 5f 71 75 65 75 65 20 28 |_failure|_queue (|
|00004330| 29 0d 7b 0d 20 20 72 65 | 67 69 73 74 65 72 20 73 |).{.  re|gister s|
|00004340| 74 72 75 63 74 20 74 65 | 6d 70 5f 66 69 6c 65 20 |truct te|mp_file |
|00004350| 2a 74 65 6d 70 3b 0d 0d | 20 20 66 6f 72 20 28 74 |*temp;..|  for (t|
|00004360| 65 6d 70 20 3d 20 66 61 | 69 6c 75 72 65 5f 64 65 |emp = fa|ilure_de|
|00004370| 6c 65 74 65 5f 71 75 65 | 75 65 3b 20 74 65 6d 70 |lete_que|ue; temp|
|00004380| 3b 20 74 65 6d 70 20 3d | 20 74 65 6d 70 2d 3e 6e |; temp =| temp->n|
|00004390| 65 78 74 29 0d 20 20 20 | 20 7b 0d 23 69 66 64 65 |ext).   | {.#ifde|
|000043a0| 66 20 44 45 42 55 47 0d | 20 20 20 20 20 20 69 6e |f DEBUG.|      in|
|000043b0| 74 20 69 3b 0d 20 20 20 | 20 20 20 70 72 69 6e 74 |t i;.   |   print|
|000043c0| 66 20 28 22 44 65 6c 65 | 74 65 20 25 73 3f 20 28 |f ("Dele|te %s? (|
|000043d0| 79 20 6f 72 20 6e 29 20 | 22 2c 20 74 65 6d 70 2d |y or n) |", temp-|
|000043e0| 3e 6e 61 6d 65 29 3b 0d | 20 20 20 20 20 20 66 66 |>name);.|      ff|
|000043f0| 6c 75 73 68 20 28 73 74 | 64 6f 75 74 29 3b 0d 20 |lush (st|dout);. |
|00004400| 20 20 20 20 20 69 20 3d | 20 67 65 74 63 68 61 72 |     i =| getchar|
|00004410| 20 28 29 3b 0d 20 20 20 | 20 20 20 69 66 20 28 69 | ();.   |   if (i|
|00004420| 20 21 3d 20 27 5c 6e 27 | 29 0d 09 77 68 69 6c 65 | != '\n'|)..while|
|00004430| 20 28 67 65 74 63 68 61 | 72 20 28 29 20 21 3d 20 | (getcha|r () != |
|00004440| 27 5c 6e 27 29 20 3b 0d | 20 20 20 20 20 20 69 66 |'\n') ;.|      if|
|00004450| 20 28 69 20 3d 3d 20 27 | 79 27 20 7c 7c 20 69 20 | (i == '|y' || i |
|00004460| 3d 3d 20 27 59 27 29 0d | 23 65 6e 64 69 66 20 2f |== 'Y').|#endif /|
|00004470| 2a 20 44 45 42 55 47 20 | 2a 2f 0d 09 7b 0d 09 20 |* DEBUG |*/..{.. |
|00004480| 20 69 66 20 28 75 6e 6c | 69 6e 6b 20 28 74 65 6d | if (unl|ink (tem|
|00004490| 70 2d 3e 6e 61 6d 65 29 | 20 3c 20 30 29 0d 09 20 |p->name)| < 0).. |
|000044a0| 20 20 20 69 66 20 28 76 | 66 6c 61 67 29 0d 09 20 |   if (v|flag).. |
|000044b0| 20 20 20 20 20 70 65 72 | 72 6f 72 5f 77 69 74 68 |     per|ror_with|
|000044c0| 5f 6e 61 6d 65 20 28 74 | 65 6d 70 2d 3e 6e 61 6d |_name (t|emp->nam|
|000044d0| 65 29 3b 0d 09 7d 0d 20 | 20 20 20 7d 0d 7d 0d 0d |e);..}. |   }.}..|
|000044e0| 76 6f 69 64 0d 63 6c 65 | 61 72 5f 66 61 69 6c 75 |void.cle|ar_failu|
|000044f0| 72 65 5f 71 75 65 75 65 | 20 28 29 0d 7b 0d 20 20 |re_queue| ().{.  |
|00004500| 66 61 69 6c 75 72 65 5f | 64 65 6c 65 74 65 5f 71 |failure_|delete_q|
|00004510| 75 65 75 65 20 3d 20 30 | 3b 0d 7d 0d 0d 2f 2a 20 |ueue = 0|;.}../* |
|00004520| 43 6f 6d 70 75 74 65 20 | 61 20 73 74 72 69 6e 67 |Compute |a string|
|00004530| 20 74 6f 20 75 73 65 20 | 61 73 20 74 68 65 20 62 | to use |as the b|
|00004540| 61 73 65 20 6f 66 20 61 | 6c 6c 20 74 65 6d 70 6f |ase of a|ll tempo|
|00004550| 72 61 72 79 20 66 69 6c | 65 20 6e 61 6d 65 73 2e |rary fil|e names.|
|00004560| 0d 20 20 20 49 74 20 69 | 73 20 73 75 62 73 74 69 |.   It i|s substi|
|00004570| 74 75 74 65 64 20 66 6f | 72 20 25 67 2e 20 20 2a |tuted fo|r %g.  *|
|00004580| 2f 0d 0d 76 6f 69 64 0d | 63 68 6f 6f 73 65 5f 74 |/..void.|choose_t|
|00004590| 65 6d 70 5f 62 61 73 65 | 20 28 29 0d 7b 0d 20 20 |emp_base| ().{.  |
|000045a0| 65 78 74 65 72 6e 20 63 | 68 61 72 20 2a 67 65 74 |extern c|har *get|
|000045b0| 65 6e 76 20 28 29 3b 0d | 20 20 63 68 61 72 20 2a |env ();.|  char *|
|000045c0| 62 61 73 65 20 3d 20 67 | 65 74 65 6e 76 20 28 22 |base = g|etenv ("|
|000045d0| 54 4d 50 44 49 52 22 29 | 3b 0d 20 20 69 6e 74 20 |TMPDIR")|;.  int |
|000045e0| 6c 65 6e 3b 0d 0d 20 20 | 69 66 20 28 62 61 73 65 |len;..  |if (base|
|000045f0| 20 3d 3d 20 28 63 68 61 | 72 20 2a 29 30 29 0d 20 | == (cha|r *)0). |
|00004600| 20 20 20 7b 0d 23 69 66 | 64 65 66 20 50 5f 74 6d |   {.#if|def P_tm|
|00004610| 70 64 69 72 0d 20 20 20 | 20 20 20 69 66 20 28 61 |pdir.   |   if (a|
|00004620| 63 63 65 73 73 20 28 50 | 5f 74 6d 70 64 69 72 2c |ccess (P|_tmpdir,|
|00004630| 20 52 5f 4f 4b 20 7c 20 | 57 5f 4f 4b 29 20 3d 3d | R_OK | |W_OK) ==|
|00004640| 20 30 29 0d 09 62 61 73 | 65 20 3d 20 50 5f 74 6d | 0)..bas|e = P_tm|
|00004650| 70 64 69 72 3b 0d 23 65 | 6e 64 69 66 0d 20 20 20 |pdir;.#e|ndif.   |
|00004660| 20 20 20 69 66 20 28 62 | 61 73 65 20 3d 3d 20 28 |   if (b|ase == (|
|00004670| 63 68 61 72 20 2a 29 30 | 29 0d 09 7b 0d 09 20 20 |char *)0|)..{..  |
|00004680| 69 66 20 28 61 63 63 65 | 73 73 20 28 22 2f 75 73 |if (acce|ss ("/us|
|00004690| 72 2f 74 6d 70 22 2c 20 | 52 5f 4f 4b 20 7c 20 57 |r/tmp", |R_OK | W|
|000046a0| 5f 4f 4b 29 20 3d 3d 20 | 30 29 0d 09 20 20 20 20 |_OK) == |0)..    |
|000046b0| 62 61 73 65 20 3d 20 22 | 2f 75 73 72 2f 74 6d 70 |base = "|/usr/tmp|
|000046c0| 2f 22 3b 0d 09 20 20 65 | 6c 73 65 0d 09 20 20 20 |/";..  e|lse..   |
|000046d0| 20 62 61 73 65 20 3d 20 | 22 2f 74 6d 70 2f 22 3b | base = |"/tmp/";|
|000046e0| 0d 09 7d 0d 20 20 20 20 | 7d 0d 0d 20 20 6c 65 6e |..}.    |}..  len|
|000046f0| 20 3d 20 73 74 72 6c 65 | 6e 20 28 62 61 73 65 29 | = strle|n (base)|
|00004700| 3b 0d 20 20 74 65 6d 70 | 5f 66 69 6c 65 6e 61 6d |;.  temp|_filenam|
|00004710| 65 20 3d 20 28 63 68 61 | 72 20 2a 29 20 78 6d 61 |e = (cha|r *) xma|
|00004720| 6c 6c 6f 63 20 28 6c 65 | 6e 20 2b 20 73 69 7a 65 |lloc (le|n + size|
|00004730| 6f 66 28 22 2f 63 63 58 | 58 58 58 58 58 22 29 29 |of("/ccX|XXXXX"))|
|00004740| 3b 0d 20 20 73 74 72 63 | 70 79 20 28 74 65 6d 70 |;.  strc|py (temp|
|00004750| 5f 66 69 6c 65 6e 61 6d | 65 2c 20 62 61 73 65 29 |_filenam|e, base)|
|00004760| 3b 0d 20 20 69 66 20 28 | 6c 65 6e 20 3e 20 30 20 |;.  if (|len > 0 |
|00004770| 26 26 20 74 65 6d 70 5f | 66 69 6c 65 6e 61 6d 65 |&& temp_|filename|
|00004780| 5b 6c 65 6e 2d 31 5d 20 | 21 3d 20 27 2f 27 29 0d |[len-1] |!= '/').|
|00004790| 20 20 20 20 74 65 6d 70 | 5f 66 69 6c 65 6e 61 6d |    temp|_filenam|
|000047a0| 65 5b 6c 65 6e 2b 2b 5d | 20 3d 20 27 2f 27 3b 0d |e[len++]| = '/';.|
|000047b0| 20 20 73 74 72 63 70 79 | 20 28 74 65 6d 70 5f 66 |  strcpy| (temp_f|
|000047c0| 69 6c 65 6e 61 6d 65 20 | 2b 20 6c 65 6e 2c 20 22 |ilename |+ len, "|
|000047d0| 63 63 58 58 58 58 58 58 | 22 29 3b 0d 0d 20 20 6d |ccXXXXXX|");..  m|
|000047e0| 6b 74 65 6d 70 20 28 74 | 65 6d 70 5f 66 69 6c 65 |ktemp (t|emp_file|
|000047f0| 6e 61 6d 65 29 3b 0d 20 | 20 74 65 6d 70 5f 66 69 |name);. | temp_fi|
|00004800| 6c 65 6e 61 6d 65 5f 6c | 65 6e 67 74 68 20 3d 20 |lename_l|ength = |
|00004810| 73 74 72 6c 65 6e 20 28 | 74 65 6d 70 5f 66 69 6c |strlen (|temp_fil|
|00004820| 65 6e 61 6d 65 29 3b 0d | 7d 0d 0c 0d 2f 2a 20 53 |ename);.|}.../* S|
|00004830| 65 61 72 63 68 20 66 6f | 72 20 61 6e 20 65 78 65 |earch fo|r an exe|
|00004840| 63 75 74 65 20 66 69 6c | 65 20 74 68 72 6f 75 67 |cute fil|e throug|
|00004850| 68 20 6f 75 72 20 73 65 | 61 72 63 68 20 70 61 74 |h our se|arch pat|
|00004860| 68 2e 0d 20 20 20 52 65 | 74 75 72 6e 20 30 20 69 |h..   Re|turn 0 i|
|00004870| 66 20 6e 6f 74 20 66 6f | 75 6e 64 2c 20 6f 74 68 |f not fo|und, oth|
|00004880| 65 72 77 69 73 65 20 72 | 65 74 75 72 6e 20 69 74 |erwise r|eturn it|
|00004890| 73 20 6e 61 6d 65 2c 20 | 61 6c 6c 6f 63 61 74 65 |s name, |allocate|
|000048a0| 64 20 77 69 74 68 20 6d | 61 6c 6c 6f 63 2e 20 20 |d with m|alloc.  |
|000048b0| 2a 2f 0d 0d 73 74 61 74 | 69 63 20 63 68 61 72 20 |*/..stat|ic char |
|000048c0| 2a 0d 66 69 6e 64 5f 65 | 78 65 63 5f 66 69 6c 65 |*.find_e|xec_file|
|000048d0| 20 28 70 72 6f 67 29 0d | 20 20 20 20 20 63 68 61 | (prog).|     cha|
|000048e0| 72 20 2a 70 72 6f 67 3b | 0d 7b 0d 20 20 69 6e 74 |r *prog;|.{.  int|
|000048f0| 20 77 69 6e 20 3d 20 30 | 3b 0d 20 20 63 68 61 72 | win = 0|;.  char|
|00004900| 20 2a 74 65 6d 70 3b 0d | 20 20 69 6e 74 20 73 69 | *temp;.|  int si|
|00004910| 7a 65 3b 0d 0d 20 20 73 | 69 7a 65 20 3d 20 73 74 |ze;..  s|ize = st|
|00004920| 72 6c 65 6e 20 28 73 74 | 61 6e 64 61 72 64 5f 65 |rlen (st|andard_e|
|00004930| 78 65 63 5f 70 72 65 66 | 69 78 29 3b 0d 20 20 69 |xec_pref|ix);.  i|
|00004940| 66 20 28 75 73 65 72 5f | 65 78 65 63 5f 70 72 65 |f (user_|exec_pre|
|00004950| 66 69 78 20 21 3d 20 30 | 20 26 26 20 73 74 72 6c |fix != 0| && strl|
|00004960| 65 6e 20 28 75 73 65 72 | 5f 65 78 65 63 5f 70 72 |en (user|_exec_pr|
|00004970| 65 66 69 78 29 20 3e 20 | 73 69 7a 65 29 0d 20 20 |efix) > |size).  |
|00004980| 20 20 73 69 7a 65 20 3d | 20 73 74 72 6c 65 6e 20 |  size =| strlen |
|00004990| 28 75 73 65 72 5f 65 78 | 65 63 5f 70 72 65 66 69 |(user_ex|ec_prefi|
|000049a0| 78 29 3b 0d 20 20 69 66 | 20 28 65 6e 76 5f 65 78 |x);.  if| (env_ex|
|000049b0| 65 63 5f 70 72 65 66 69 | 78 20 21 3d 20 30 20 26 |ec_prefi|x != 0 &|
|000049c0| 26 20 73 74 72 6c 65 6e | 20 28 65 6e 76 5f 65 78 |& strlen| (env_ex|
|000049d0| 65 63 5f 70 72 65 66 69 | 78 29 20 3e 20 73 69 7a |ec_prefi|x) > siz|
|000049e0| 65 29 0d 20 20 20 20 73 | 69 7a 65 20 3d 20 73 74 |e).    s|ize = st|
|000049f0| 72 6c 65 6e 20 28 65 6e | 76 5f 65 78 65 63 5f 70 |rlen (en|v_exec_p|
|00004a00| 72 65 66 69 78 29 3b 0d | 20 20 69 66 20 28 73 74 |refix);.|  if (st|
|00004a10| 72 6c 65 6e 20 28 73 74 | 61 6e 64 61 72 64 5f 65 |rlen (st|andard_e|
|00004a20| 78 65 63 5f 70 72 65 66 | 69 78 5f 31 29 20 3e 20 |xec_pref|ix_1) > |
|00004a30| 73 69 7a 65 29 0d 20 20 | 20 20 73 69 7a 65 20 3d |size).  |  size =|
|00004a40| 20 73 74 72 6c 65 6e 20 | 28 73 74 61 6e 64 61 72 | strlen |(standar|
|00004a50| 64 5f 65 78 65 63 5f 70 | 72 65 66 69 78 5f 31 29 |d_exec_p|refix_1)|
|00004a60| 3b 0d 20 20 73 69 7a 65 | 20 2b 3d 20 73 74 72 6c |;.  size| += strl|
|00004a70| 65 6e 20 28 70 72 6f 67 | 29 20 2b 20 31 3b 0d 20 |en (prog|) + 1;. |
|00004a80| 20 69 66 20 28 6d 61 63 | 68 69 6e 65 5f 73 75 66 | if (mac|hine_suf|
|00004a90| 66 69 78 29 0d 20 20 20 | 20 73 69 7a 65 20 2b 3d |fix).   | size +=|
|00004aa0| 20 73 74 72 6c 65 6e 20 | 28 6d 61 63 68 69 6e 65 | strlen |(machine|
|00004ab0| 5f 73 75 66 66 69 78 29 | 20 2b 20 31 3b 0d 20 20 |_suffix)| + 1;.  |
|00004ac0| 74 65 6d 70 20 3d 20 28 | 63 68 61 72 20 2a 29 20 |temp = (|char *) |
|00004ad0| 78 6d 61 6c 6c 6f 63 20 | 28 73 69 7a 65 29 3b 0d |xmalloc |(size);.|
|00004ae0| 0d 20 20 2f 2a 20 44 65 | 74 65 72 6d 69 6e 65 20 |.  /* De|termine |
|00004af0| 74 68 65 20 66 69 6c 65 | 6e 61 6d 65 20 74 6f 20 |the file|name to |
|00004b00| 65 78 65 63 75 74 65 2e | 20 20 2a 2f 0d 0d 20 20 |execute.|  */..  |
|00004b10| 69 66 20 28 75 73 65 72 | 5f 65 78 65 63 5f 70 72 |if (user|_exec_pr|
|00004b20| 65 66 69 78 29 0d 20 20 | 20 20 7b 0d 20 20 20 20 |efix).  |  {.    |
|00004b30| 20 20 69 66 20 28 6d 61 | 63 68 69 6e 65 5f 73 75 |  if (ma|chine_su|
|00004b40| 66 66 69 78 29 0d 09 7b | 0d 09 20 20 73 74 72 63 |ffix)..{|..  strc|
|00004b50| 70 79 20 28 74 65 6d 70 | 2c 20 75 73 65 72 5f 65 |py (temp|, user_e|
|00004b60| 78 65 63 5f 70 72 65 66 | 69 78 29 3b 0d 09 20 20 |xec_pref|ix);..  |
|00004b70| 73 74 72 63 61 74 20 28 | 74 65 6d 70 2c 20 6d 61 |strcat (|temp, ma|
|00004b80| 63 68 69 6e 65 5f 73 75 | 66 66 69 78 29 3b 0d 09 |chine_su|ffix);..|
|00004b90| 20 20 73 74 72 63 61 74 | 20 28 74 65 6d 70 2c 20 |  strcat| (temp, |
|00004ba0| 70 72 6f 67 29 3b 0d 09 | 20 20 77 69 6e 20 3d 20 |prog);..|  win = |
|00004bb0| 28 61 63 63 65 73 73 20 | 28 74 65 6d 70 2c 20 58 |(access |(temp, X|
|00004bc0| 5f 4f 4b 29 20 3d 3d 20 | 30 29 3b 0d 09 7d 0d 20 |_OK) == |0);..}. |
|00004bd0| 20 20 20 20 20 69 66 20 | 28 21 77 69 6e 29 0d 09 |     if |(!win)..|
|00004be0| 7b 0d 09 20 20 73 74 72 | 63 70 79 20 28 74 65 6d |{..  str|cpy (tem|
|00004bf0| 70 2c 20 75 73 65 72 5f | 65 78 65 63 5f 70 72 65 |p, user_|exec_pre|
|00004c00| 66 69 78 29 3b 0d 09 20 | 20 73 74 72 63 61 74 20 |fix);.. | strcat |
|00004c10| 28 74 65 6d 70 2c 20 70 | 72 6f 67 29 3b 0d 09 20 |(temp, p|rog);.. |
|00004c20| 20 77 69 6e 20 3d 20 28 | 61 63 63 65 73 73 20 28 | win = (|access (|
|00004c30| 74 65 6d 70 2c 20 58 5f | 4f 4b 29 20 3d 3d 20 30 |temp, X_|OK) == 0|
|00004c40| 29 3b 0d 09 7d 0d 20 20 | 20 20 7d 0d 0d 20 20 69 |);..}.  |  }..  i|
|00004c50| 66 20 28 21 77 69 6e 20 | 26 26 20 65 6e 76 5f 65 |f (!win |&& env_e|
|00004c60| 78 65 63 5f 70 72 65 66 | 69 78 29 0d 20 20 20 20 |xec_pref|ix).    |
|00004c70| 7b 0d 20 20 20 20 20 20 | 69 66 20 28 6d 61 63 68 |{.      |if (mach|
|00004c80| 69 6e 65 5f 73 75 66 66 | 69 78 29 0d 09 7b 0d 09 |ine_suff|ix)..{..|
|00004c90| 20 20 73 74 72 63 70 79 | 20 28 74 65 6d 70 2c 20 |  strcpy| (temp, |
|00004ca0| 65 6e 76 5f 65 78 65 63 | 5f 70 72 65 66 69 78 29 |env_exec|_prefix)|
|00004cb0| 3b 0d 09 20 20 73 74 72 | 63 61 74 20 28 74 65 6d |;..  str|cat (tem|
|00004cc0| 70 2c 20 6d 61 63 68 69 | 6e 65 5f 73 75 66 66 69 |p, machi|ne_suffi|
|00004cd0| 78 29 3b 0d 09 20 20 73 | 74 72 63 61 74 20 28 74 |x);..  s|trcat (t|
|00004ce0| 65 6d 70 2c 20 70 72 6f | 67 29 3b 0d 09 20 20 77 |emp, pro|g);..  w|
|00004cf0| 69 6e 20 3d 20 28 61 63 | 63 65 73 73 20 28 74 65 |in = (ac|cess (te|
|00004d00| 6d 70 2c 20 58 5f 4f 4b | 29 20 3d 3d 20 30 29 3b |mp, X_OK|) == 0);|
|00004d10| 0d 09 7d 0d 20 20 20 20 | 20 20 69 66 20 28 21 77 |..}.    |  if (!w|
|00004d20| 69 6e 29 0d 09 7b 0d 09 | 20 20 73 74 72 63 70 79 |in)..{..|  strcpy|
|00004d30| 20 28 74 65 6d 70 2c 20 | 65 6e 76 5f 65 78 65 63 | (temp, |env_exec|
|00004d40| 5f 70 72 65 66 69 78 29 | 3b 0d 09 20 20 73 74 72 |_prefix)|;..  str|
|00004d50| 63 61 74 20 28 74 65 6d | 70 2c 20 70 72 6f 67 29 |cat (tem|p, prog)|
|00004d60| 3b 0d 09 20 20 77 69 6e | 20 3d 20 28 61 63 63 65 |;..  win| = (acce|
|00004d70| 73 73 20 28 74 65 6d 70 | 2c 20 58 5f 4f 4b 29 20 |ss (temp|, X_OK) |
|00004d80| 3d 3d 20 30 29 3b 0d 09 | 7d 0d 20 20 20 20 7d 0d |== 0);..|}.    }.|
|00004d90| 0d 20 20 69 66 20 28 21 | 77 69 6e 29 0d 20 20 20 |.  if (!|win).   |
|00004da0| 20 7b 0d 20 20 20 20 20 | 20 69 66 20 28 6d 61 63 | {.     | if (mac|
|00004db0| 68 69 6e 65 5f 73 75 66 | 66 69 78 29 0d 09 7b 0d |hine_suf|fix)..{.|
|00004dc0| 09 20 20 73 74 72 63 70 | 79 20 28 74 65 6d 70 2c |.  strcp|y (temp,|
|00004dd0| 20 73 74 61 6e 64 61 72 | 64 5f 65 78 65 63 5f 70 | standar|d_exec_p|
|00004de0| 72 65 66 69 78 29 3b 0d | 09 20 20 73 74 72 63 61 |refix);.|.  strca|
|00004df0| 74 20 28 74 65 6d 70 2c | 20 6d 61 63 68 69 6e 65 |t (temp,| machine|
|00004e00| 5f 73 75 66 66 69 78 29 | 3b 0d 09 20 20 73 74 72 |_suffix)|;..  str|
|00004e10| 63 61 74 20 28 74 65 6d | 70 2c 20 70 72 6f 67 29 |cat (tem|p, prog)|
|00004e20| 3b 0d 09 20 20 77 69 6e | 20 3d 20 28 61 63 63 65 |;..  win| = (acce|
|00004e30| 73 73 20 28 74 65 6d 70 | 2c 20 58 5f 4f 4b 29 20 |ss (temp|, X_OK) |
|00004e40| 3d 3d 20 30 29 3b 0d 09 | 7d 0d 20 20 20 20 20 20 |== 0);..|}.      |
|00004e50| 69 66 20 28 21 77 69 6e | 29 0d 09 7b 0d 09 20 20 |if (!win|)..{..  |
|00004e60| 73 74 72 63 70 79 20 28 | 74 65 6d 70 2c 20 73 74 |strcpy (|temp, st|
|00004e70| 61 6e 64 61 72 64 5f 65 | 78 65 63 5f 70 72 65 66 |andard_e|xec_pref|
|00004e80| 69 78 29 3b 0d 09 20 20 | 73 74 72 63 61 74 20 28 |ix);..  |strcat (|
|00004e90| 74 65 6d 70 2c 20 70 72 | 6f 67 29 3b 0d 09 20 20 |temp, pr|og);..  |
|00004ea0| 77 69 6e 20 3d 20 28 61 | 63 63 65 73 73 20 28 74 |win = (a|ccess (t|
|00004eb0| 65 6d 70 2c 20 58 5f 4f | 4b 29 20 3d 3d 20 30 29 |emp, X_O|K) == 0)|
|00004ec0| 3b 0d 09 7d 0d 20 20 20 | 20 7d 0d 0d 20 20 69 66 |;..}.   | }..  if|
|00004ed0| 20 28 21 77 69 6e 29 0d | 20 20 20 20 7b 0d 20 20 | (!win).|    {.  |
|00004ee0| 20 20 20 20 69 66 20 28 | 6d 61 63 68 69 6e 65 5f |    if (|machine_|
|00004ef0| 73 75 66 66 69 78 29 0d | 09 7b 0d 09 20 20 73 74 |suffix).|.{..  st|
|00004f00| 72 63 70 79 20 28 74 65 | 6d 70 2c 20 73 74 61 6e |rcpy (te|mp, stan|
|00004f10| 64 61 72 64 5f 65 78 65 | 63 5f 70 72 65 66 69 78 |dard_exe|c_prefix|
|00004f20| 5f 31 29 3b 0d 09 20 20 | 73 74 72 63 61 74 20 28 |_1);..  |strcat (|
|00004f30| 74 65 6d 70 2c 20 6d 61 | 63 68 69 6e 65 5f 73 75 |temp, ma|chine_su|
|00004f40| 66 66 69 78 29 3b 0d 09 | 20 20 73 74 72 63 61 74 |ffix);..|  strcat|
|00004f50| 20 28 74 65 6d 70 2c 20 | 70 72 6f 67 29 3b 0d 09 | (temp, |prog);..|
|00004f60| 20 20 77 69 6e 20 3d 20 | 28 61 63 63 65 73 73 20 |  win = |(access |
|00004f70| 28 74 65 6d 70 2c 20 58 | 5f 4f 4b 29 20 3d 3d 20 |(temp, X|_OK) == |
|00004f80| 30 29 3b 0d 09 7d 0d 20 | 20 20 20 20 20 69 66 20 |0);..}. |     if |
|00004f90| 28 21 77 69 6e 29 0d 09 | 7b 0d 09 20 20 73 74 72 |(!win)..|{..  str|
|00004fa0| 63 70 79 20 28 74 65 6d | 70 2c 20 73 74 61 6e 64 |cpy (tem|p, stand|
|00004fb0| 61 72 64 5f 65 78 65 63 | 5f 70 72 65 66 69 78 5f |ard_exec|_prefix_|
|00004fc0| 31 29 3b 0d 09 20 20 73 | 74 72 63 61 74 20 28 74 |1);..  s|trcat (t|
|00004fd0| 65 6d 70 2c 20 70 72 6f | 67 29 3b 0d 09 20 20 77 |emp, pro|g);..  w|
|00004fe0| 69 6e 20 3d 20 28 61 63 | 63 65 73 73 20 28 74 65 |in = (ac|cess (te|
|00004ff0| 6d 70 2c 20 58 5f 4f 4b | 29 20 3d 3d 20 30 29 3b |mp, X_OK|) == 0);|
|00005000| 0d 09 7d 0d 20 20 20 20 | 7d 0d 0d 20 20 69 66 20 |..}.    |}..  if |
|00005010| 28 77 69 6e 29 0d 20 20 | 20 20 72 65 74 75 72 6e |(win).  |  return|
|00005020| 20 74 65 6d 70 3b 0d 20 | 20 65 6c 73 65 0d 20 20 | temp;. | else.  |
|00005030| 20 20 72 65 74 75 72 6e | 20 30 3b 0d 7d 0d 0c 0d |  return| 0;.}...|
|00005040| 2f 2a 20 73 74 64 69 6e | 20 66 69 6c 65 20 6e 75 |/* stdin| file nu|
|00005050| 6d 62 65 72 2e 20 20 2a | 2f 0d 23 64 65 66 69 6e |mber.  *|/.#defin|
|00005060| 65 20 53 54 44 49 4e 5f | 46 49 4c 45 5f 4e 4f 20 |e STDIN_|FILE_NO |
|00005070| 30 0d 0d 2f 2a 20 73 74 | 64 6f 75 74 20 66 69 6c |0../* st|dout fil|
|00005080| 65 20 6e 75 6d 62 65 72 | 2e 20 20 2a 2f 0d 23 64 |e number|.  */.#d|
|00005090| 65 66 69 6e 65 20 53 54 | 44 4f 55 54 5f 46 49 4c |efine ST|DOUT_FIL|
|000050a0| 45 5f 4e 4f 20 31 0d 0d | 2f 2a 20 76 61 6c 75 65 |E_NO 1..|/* value|
|000050b0| 20 6f 66 20 60 70 69 70 | 65 27 3a 20 70 6f 72 74 | of `pip|e': port|
|000050c0| 20 69 6e 64 65 78 20 66 | 6f 72 20 72 65 61 64 69 | index f|or readi|
|000050d0| 6e 67 2e 20 20 2a 2f 0d | 23 64 65 66 69 6e 65 20 |ng.  */.|#define |
|000050e0| 52 45 41 44 5f 50 4f 52 | 54 20 30 0d 0d 2f 2a 20 |READ_POR|T 0../* |
|000050f0| 76 61 6c 75 65 20 6f 66 | 20 60 70 69 70 65 27 3a |value of| `pipe':|
|00005100| 20 70 6f 72 74 20 69 6e | 64 65 78 20 66 6f 72 20 | port in|dex for |
|00005110| 77 72 69 74 69 6e 67 2e | 20 20 2a 2f 0d 23 64 65 |writing.|  */.#de|
|00005120| 66 69 6e 65 20 57 52 49 | 54 45 5f 50 4f 52 54 20 |fine WRI|TE_PORT |
|00005130| 31 0d 0d 2f 2a 20 50 69 | 70 65 20 77 61 69 74 69 |1../* Pi|pe waiti|
|00005140| 6e 67 20 66 72 6f 6d 20 | 6c 61 73 74 20 70 72 6f |ng from |last pro|
|00005150| 63 65 73 73 2c 20 74 6f | 20 62 65 20 75 73 65 64 |cess, to| be used|
|00005160| 20 61 73 20 69 6e 70 75 | 74 20 66 6f 72 20 74 68 | as inpu|t for th|
|00005170| 65 20 6e 65 78 74 20 6f | 6e 65 2e 0d 20 20 20 56 |e next o|ne..   V|
|00005180| 61 6c 75 65 20 69 73 20 | 53 54 44 49 4e 5f 46 49 |alue is |STDIN_FI|
|00005190| 4c 45 5f 4e 4f 20 69 66 | 20 6e 6f 20 70 69 70 65 |LE_NO if| no pipe|
|000051a0| 20 69 73 20 77 61 69 74 | 69 6e 67 0d 20 20 20 28 | is wait|ing.   (|
|000051b0| 69 2e 65 2e 20 74 68 65 | 20 6e 65 78 74 20 63 6f |i.e. the| next co|
|000051c0| 6d 6d 61 6e 64 20 69 73 | 20 74 68 65 20 66 69 72 |mmand is| the fir|
|000051d0| 73 74 20 6f 66 20 61 20 | 67 72 6f 75 70 29 2e 20 |st of a |group). |
|000051e0| 20 2a 2f 0d 0d 69 6e 74 | 20 6c 61 73 74 5f 70 69 | */..int| last_pi|
|000051f0| 70 65 5f 69 6e 70 75 74 | 3b 0d 0d 2f 2a 20 46 6f |pe_input|;../* Fo|
|00005200| 72 6b 20 6f 6e 65 20 70 | 69 70 65 64 20 73 75 62 |rk one p|iped sub|
|00005210| 63 6f 6d 6d 61 6e 64 2e | 20 20 46 55 4e 43 20 69 |command.|  FUNC i|
|00005220| 73 20 74 68 65 20 73 79 | 73 74 65 6d 20 63 61 6c |s the sy|stem cal|
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|00005240| 68 65 72 20 65 78 65 63 | 76 20 6f 72 20 65 78 65 |her exec|v or exe|
|00005250| 63 76 70 29 2e 20 20 41 | 52 47 56 20 69 73 20 74 |cvp).  A|RGV is t|
|00005260| 68 65 20 61 72 67 20 76 | 65 63 74 6f 72 20 74 6f |he arg v|ector to|
|00005270| 20 75 73 65 2e 0d 20 20 | 20 4e 4f 54 5f 4c 41 53 | use..  | NOT_LAS|
|00005280| 54 20 69 73 20 6e 6f 6e | 7a 65 72 6f 20 69 66 20 |T is non|zero if |
|00005290| 74 68 69 73 20 69 73 20 | 6e 6f 74 20 74 68 65 20 |this is |not the |
|000052a0| 6c 61 73 74 20 73 75 62 | 63 6f 6d 6d 61 6e 64 0d |last sub|command.|
|000052b0| 20 20 20 28 69 2e 65 2e | 20 69 74 73 20 6f 75 74 |   (i.e.| its out|
|000052c0| 70 75 74 20 73 68 6f 75 | 6c 64 20 62 65 20 70 69 |put shou|ld be pi|
|000052d0| 70 65 64 20 74 6f 20 74 | 68 65 20 6e 65 78 74 20 |ped to t|he next |
|000052e0| 6f 6e 65 2e 29 20 20 2a | 2f 0d 0d 73 74 61 74 69 |one.)  *|/..stati|
|000052f0| 63 20 69 6e 74 0d 70 65 | 78 65 63 75 74 65 20 28 |c int.pe|xecute (|
|00005300| 66 75 6e 63 2c 20 70 72 | 6f 67 72 61 6d 2c 20 61 |func, pr|ogram, a|
|00005310| 72 67 76 2c 20 6e 6f 74 | 5f 6c 61 73 74 29 0d 20 |rgv, not|_last). |
|00005320| 20 20 20 20 63 68 61 72 | 20 2a 70 72 6f 67 72 61 |    char| *progra|
|00005330| 6d 3b 0d 20 20 20 20 20 | 69 6e 74 20 28 2a 66 75 |m;.     |int (*fu|
|00005340| 6e 63 29 28 29 3b 0d 20 | 20 20 20 20 63 68 61 72 |nc)();. |    char|
|00005350| 20 2a 61 72 67 76 5b 5d | 3b 0d 20 20 20 20 20 69 | *argv[]|;.     i|
|00005360| 6e 74 20 6e 6f 74 5f 6c | 61 73 74 3b 0d 7b 0d 20 |nt not_l|ast;.{. |
|00005370| 20 69 6e 74 20 70 69 64 | 3b 0d 20 20 69 6e 74 20 | int pid|;.  int |
|00005380| 70 64 65 73 5b 32 5d 3b | 0d 20 20 69 6e 74 20 69 |pdes[2];|.  int i|
|00005390| 6e 70 75 74 5f 64 65 73 | 63 20 3d 20 6c 61 73 74 |nput_des|c = last|
|000053a0| 5f 70 69 70 65 5f 69 6e | 70 75 74 3b 0d 20 20 69 |_pipe_in|put;.  i|
|000053b0| 6e 74 20 6f 75 74 70 75 | 74 5f 64 65 73 63 20 3d |nt outpu|t_desc =|
|000053c0| 20 53 54 44 4f 55 54 5f | 46 49 4c 45 5f 4e 4f 3b | STDOUT_|FILE_NO;|
|000053d0| 0d 0d 20 20 2f 2a 20 49 | 66 20 74 68 69 73 20 69 |..  /* I|f this i|
|000053e0| 73 6e 27 74 20 74 68 65 | 20 6c 61 73 74 20 70 72 |sn't the| last pr|
|000053f0| 6f 63 65 73 73 2c 20 6d | 61 6b 65 20 61 20 70 69 |ocess, m|ake a pi|
|00005400| 70 65 20 66 6f 72 20 69 | 74 73 20 6f 75 74 70 75 |pe for i|ts outpu|
|00005410| 74 2c 0d 20 20 20 20 20 | 61 6e 64 20 72 65 63 6f |t,.     |and reco|
|00005420| 72 64 20 69 74 20 61 73 | 20 77 61 69 74 69 6e 67 |rd it as| waiting|
|00005430| 20 74 6f 20 62 65 20 74 | 68 65 20 69 6e 70 75 74 | to be t|he input|
|00005440| 20 74 6f 20 74 68 65 20 | 6e 65 78 74 20 70 72 6f | to the |next pro|
|00005450| 63 65 73 73 2e 20 20 2a | 2f 0d 0d 20 20 69 66 20 |cess.  *|/..  if |
|00005460| 28 6e 6f 74 5f 6c 61 73 | 74 29 0d 20 20 20 20 7b |(not_las|t).    {|
|00005470| 0d 20 20 20 20 20 20 69 | 66 20 28 70 69 70 65 20 |.      i|f (pipe |
|00005480| 28 70 64 65 73 29 20 3c | 20 30 29 0d 09 70 66 61 |(pdes) <| 0)..pfa|
|00005490| 74 61 6c 5f 77 69 74 68 | 5f 6e 61 6d 65 20 28 22 |tal_with|_name ("|
|000054a0| 70 69 70 65 22 29 3b 0d | 20 20 20 20 20 20 6f 75 |pipe");.|      ou|
|000054b0| 74 70 75 74 5f 64 65 73 | 63 20 3d 20 70 64 65 73 |tput_des|c = pdes|
|000054c0| 5b 57 52 49 54 45 5f 50 | 4f 52 54 5d 3b 0d 20 20 |[WRITE_P|ORT];.  |
|000054d0| 20 20 20 20 6c 61 73 74 | 5f 70 69 70 65 5f 69 6e |    last|_pipe_in|
|000054e0| 70 75 74 20 3d 20 70 64 | 65 73 5b 52 45 41 44 5f |put = pd|es[READ_|
|000054f0| 50 4f 52 54 5d 3b 0d 20 | 20 20 20 7d 0d 20 20 65 |PORT];. |   }.  e|
|00005500| 6c 73 65 0d 20 20 20 20 | 6c 61 73 74 5f 70 69 70 |lse.    |last_pip|
|00005510| 65 5f 69 6e 70 75 74 20 | 3d 20 53 54 44 49 4e 5f |e_input |= STDIN_|
|00005520| 46 49 4c 45 5f 4e 4f 3b | 0d 0d 20 20 70 69 64 20 |FILE_NO;|..  pid |
|00005530| 3d 20 76 66 6f 72 6b 20 | 28 29 3b 0d 0d 20 20 73 |= vfork |();..  s|
|00005540| 77 69 74 63 68 20 28 70 | 69 64 29 0d 20 20 20 20 |witch (p|id).    |
|00005550| 7b 0d 20 20 20 20 63 61 | 73 65 20 2d 31 3a 0d 20 |{.    ca|se -1:. |
|00005560| 20 20 20 20 20 70 66 61 | 74 61 6c 5f 77 69 74 68 |     pfa|tal_with|
|00005570| 5f 6e 61 6d 65 20 28 22 | 76 66 6f 72 6b 22 29 3b |_name ("|vfork");|
|00005580| 0d 20 20 20 20 20 20 62 | 72 65 61 6b 3b 0d 0d 20 |.      b|reak;.. |
|00005590| 20 20 20 63 61 73 65 20 | 30 3a 20 2f 2a 20 63 68 |   case |0: /* ch|
|000055a0| 69 6c 64 20 2a 2f 0d 20 | 20 20 20 20 20 2f 2a 20 |ild */. |     /* |
|000055b0| 4d 6f 76 65 20 74 68 65 | 20 69 6e 70 75 74 20 61 |Move the| input a|
|000055c0| 6e 64 20 6f 75 74 70 75 | 74 20 70 69 70 65 73 20 |nd outpu|t pipes |
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|000055e0| 65 63 2e 20 20 2a 2f 0d | 20 20 20 20 20 20 69 66 |ec.  */.|      if|
|000055f0| 20 28 69 6e 70 75 74 5f | 64 65 73 63 20 21 3d 20 | (input_|desc != |
|00005600| 53 54 44 49 4e 5f 46 49 | 4c 45 5f 4e 4f 29 0d 09 |STDIN_FI|LE_NO)..|
|00005610| 7b 0d 09 20 20 63 6c 6f | 73 65 20 28 53 54 44 49 |{..  clo|se (STDI|
|00005620| 4e 5f 46 49 4c 45 5f 4e | 4f 29 3b 0d 09 20 20 64 |N_FILE_N|O);..  d|
|00005630| 75 70 20 28 69 6e 70 75 | 74 5f 64 65 73 63 29 3b |up (inpu|t_desc);|
|00005640| 0d 09 20 20 63 6c 6f 73 | 65 20 28 69 6e 70 75 74 |..  clos|e (input|
|00005650| 5f 64 65 73 63 29 3b 0d | 09 7d 0d 20 20 20 20 20 |_desc);.|.}.     |
|00005660| 20 69 66 20 28 6f 75 74 | 70 75 74 5f 64 65 73 63 | if (out|put_desc|
|00005670| 20 21 3d 20 53 54 44 4f | 55 54 5f 46 49 4c 45 5f | != STDO|UT_FILE_|
|00005680| 4e 4f 29 0d 09 7b 0d 09 | 20 20 63 6c 6f 73 65 20 |NO)..{..|  close |
|00005690| 28 53 54 44 4f 55 54 5f | 46 49 4c 45 5f 4e 4f 29 |(STDOUT_|FILE_NO)|
|000056a0| 3b 0d 09 20 20 64 75 70 | 20 28 6f 75 74 70 75 74 |;..  dup| (output|
|000056b0| 5f 64 65 73 63 29 3b 0d | 09 20 20 63 6c 6f 73 65 |_desc);.|.  close|
|000056c0| 20 28 6f 75 74 70 75 74 | 5f 64 65 73 63 29 3b 0d | (output|_desc);.|
|000056d0| 09 7d 0d 0d 20 20 20 20 | 20 20 2f 2a 20 43 6c 6f |.}..    |  /* Clo|
|000056e0| 73 65 20 74 68 65 20 70 | 61 72 65 6e 74 27 73 20 |se the p|arent's |
|000056f0| 64 65 73 63 73 20 74 68 | 61 74 20 61 72 65 6e 27 |descs th|at aren'|
|00005700| 74 20 77 61 6e 74 65 64 | 20 68 65 72 65 2e 20 20 |t wanted| here.  |
|00005710| 2a 2f 0d 20 20 20 20 20 | 20 69 66 20 28 6c 61 73 |*/.     | if (las|
|00005720| 74 5f 70 69 70 65 5f 69 | 6e 70 75 74 20 21 3d 20 |t_pipe_i|nput != |
|00005730| 53 54 44 49 4e 5f 46 49 | 4c 45 5f 4e 4f 29 0d 09 |STDIN_FI|LE_NO)..|
|00005740| 63 6c 6f 73 65 20 28 6c | 61 73 74 5f 70 69 70 65 |close (l|ast_pipe|
|00005750| 5f 69 6e 70 75 74 29 3b | 0d 0d 20 20 20 20 20 20 |_input);|..      |
|00005760| 2f 2a 20 45 78 65 63 20 | 74 68 65 20 70 72 6f 67 |/* Exec |the prog|
|00005770| 72 61 6d 2e 20 20 2a 2f | 0d 20 20 20 20 20 20 28 |ram.  */|.      (|
|00005780| 2a 66 75 6e 63 29 20 28 | 70 72 6f 67 72 61 6d 2c |*func) (|program,|
|00005790| 20 61 72 67 76 29 3b 0d | 20 20 20 20 20 20 70 65 | argv);.|      pe|
|000057a0| 72 72 6f 72 5f 65 78 65 | 63 20 28 70 72 6f 67 72 |rror_exe|c (progr|
|000057b0| 61 6d 29 3b 0d 20 20 20 | 20 20 20 65 78 69 74 20 |am);.   |   exit |
|000057c0| 28 2d 31 29 3b 0d 20 20 | 20 20 20 20 2f 2a 20 4e |(-1);.  |    /* N|
|000057d0| 4f 54 52 45 41 43 48 45 | 44 20 2a 2f 0d 0d 20 20 |OTREACHE|D */..  |
|000057e0| 20 20 64 65 66 61 75 6c | 74 3a 0d 20 20 20 20 20 |  defaul|t:.     |
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|00005810| 2e 0d 09 20 43 6c 6f 73 | 65 20 74 68 65 20 64 65 |... Clos|e the de|
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|00005850| 20 69 66 20 28 69 6e 70 | 75 74 5f 64 65 73 63 20 | if (inp|ut_desc |
|00005860| 21 3d 20 53 54 44 49 4e | 5f 46 49 4c 45 5f 4e 4f |!= STDIN|_FILE_NO|
|00005870| 29 0d 09 63 6c 6f 73 65 | 20 28 69 6e 70 75 74 5f |)..close| (input_|
|00005880| 64 65 73 63 29 3b 0d 20 | 20 20 20 20 20 69 66 20 |desc);. |     if |
|00005890| 28 6f 75 74 70 75 74 5f | 64 65 73 63 20 21 3d 20 |(output_|desc != |
|000058a0| 53 54 44 4f 55 54 5f 46 | 49 4c 45 5f 4e 4f 29 0d |STDOUT_F|ILE_NO).|
|000058b0| 09 63 6c 6f 73 65 20 28 | 6f 75 74 70 75 74 5f 64 |.close (|output_d|
|000058c0| 65 73 63 29 3b 0d 0d 20 | 20 20 20 20 20 2f 2a 20 |esc);.. |     /* |
|000058d0| 52 65 74 75 72 6e 20 63 | 68 69 6c 64 27 73 20 70 |Return c|hild's p|
|000058e0| 72 6f 63 65 73 73 20 6e | 75 6d 62 65 72 2e 20 20 |rocess n|umber.  |
|000058f0| 2a 2f 0d 20 20 20 20 20 | 20 72 65 74 75 72 6e 20 |*/.     | return |
|00005900| 70 69 64 3b 0d 20 20 20 | 20 7d 0d 7d 0d 0c 0d 2f |pid;.   | }.}.../|
|00005910| 2a 20 45 78 65 63 75 74 | 65 20 74 68 65 20 63 6f |* Execut|e the co|
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|00005930| 62 79 20 74 68 65 20 61 | 72 67 75 6d 65 6e 74 73 |by the a|rguments|
|00005940| 20 6f 6e 20 74 68 65 20 | 63 75 72 72 65 6e 74 20 | on the |current |
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|00005960| 20 57 68 65 6e 20 75 73 | 69 6e 67 20 70 69 70 65 | When us|ing pipe|
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|00005980| 20 73 65 76 65 72 61 6c | 20 70 69 70 65 64 2d 74 | several| piped-t|
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|000059d0| 73 73 66 75 6c 2c 20 2d | 31 20 69 66 20 66 61 69 |ssful, -|1 if fai|
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|00005a00| 20 69 2c 20 6a 3b 0d 20 | 20 69 6e 74 20 6e 5f 63 | i, j;. | int n_c|
|00005a10| 6f 6d 6d 61 6e 64 73 3b | 09 09 2f 2a 20 23 20 6f |ommands;|../* # o|
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|00005a30| 20 63 68 61 72 20 2a 73 | 74 72 69 6e 67 3b 0d 20 | char *s|tring;. |
|00005a40| 20 73 74 72 75 63 74 20 | 63 6f 6d 6d 61 6e 64 0d | struct |command.|
|00005a50| 20 20 20 20 7b 0d 20 20 | 20 20 20 20 63 68 61 72 |    {.  |    char|
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|00005a70| 72 61 6d 20 6e 61 6d 65 | 2e 20 20 2a 2f 0d 20 20 |ram name|.  */.  |
|00005a80| 20 20 20 20 63 68 61 72 | 20 2a 2a 61 72 67 76 3b |    char| **argv;|
|00005a90| 09 09 2f 2a 20 76 65 63 | 74 6f 72 20 6f 66 20 61 |../* vec|tor of a|
|00005aa0| 72 67 73 2e 20 20 2a 2f | 0d 20 20 20 20 20 20 69 |rgs.  */|.      i|
|00005ab0| 6e 74 20 70 69 64 3b 09 | 09 09 2f 2a 20 70 69 64 |nt pid;.|../* pid|
|00005ac0| 20 6f 66 20 70 72 6f 63 | 65 73 73 20 66 6f 72 20 | of proc|ess for |
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|00005af0| 63 74 20 63 6f 6d 6d 61 | 6e 64 20 2a 63 6f 6d 6d |ct comma|nd *comm|
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|00005b20| 68 20 61 62 6f 76 65 20 | 69 6e 66 6f 2e 20 20 2a |h above |info.  *|
|00005b30| 2f 0d 0d 20 20 2f 2a 20 | 43 6f 75 6e 74 20 23 20 |/..  /* |Count # |
|00005b40| 6f 66 20 70 69 70 65 64 | 20 63 6f 6d 6d 61 6e 64 |of piped| command|
|00005b50| 73 2e 20 20 2a 2f 0d 20 | 20 66 6f 72 20 28 6e 5f |s.  */. | for (n_|
|00005b60| 63 6f 6d 6d 61 6e 64 73 | 20 3d 20 31 2c 20 69 20 |commands| = 1, i |
|00005b70| 3d 20 30 3b 20 69 20 3c | 20 61 72 67 62 75 66 5f |= 0; i <| argbuf_|
|00005b80| 69 6e 64 65 78 3b 20 69 | 2b 2b 29 0d 20 20 20 20 |index; i|++).    |
|00005b90| 69 66 20 28 73 74 72 63 | 6d 70 20 28 61 72 67 62 |if (strc|mp (argb|
|00005ba0| 75 66 5b 69 5d 2c 20 22 | 7c 22 29 20 3d 3d 20 30 |uf[i], "||") == 0|
|00005bb0| 29 0d 20 20 20 20 20 20 | 6e 5f 63 6f 6d 6d 61 6e |).      |n_comman|
|00005bc0| 64 73 2b 2b 3b 0d 0d 20 | 20 2f 2a 20 47 65 74 20 |ds++;.. | /* Get |
|00005bd0| 73 74 6f 72 61 67 65 20 | 66 6f 72 20 65 61 63 68 |storage |for each|
|00005be0| 20 63 6f 6d 6d 61 6e 64 | 2e 20 20 2a 2f 0d 20 20 | command|.  */.  |
|00005bf0| 63 6f 6d 6d 61 6e 64 73 | 0d 20 20 20 20 3d 20 28 |commands|.    = (|
|00005c00| 73 74 72 75 63 74 20 63 | 6f 6d 6d 61 6e 64 20 2a |struct c|ommand *|
|00005c10| 29 20 61 6c 6c 6f 63 61 | 20 28 6e 5f 63 6f 6d 6d |) alloca| (n_comm|
|00005c20| 61 6e 64 73 20 2a 20 73 | 69 7a 65 6f 66 20 28 73 |ands * s|izeof (s|
|00005c30| 74 72 75 63 74 20 63 6f | 6d 6d 61 6e 64 29 29 3b |truct co|mmand));|
|00005c40| 0d 0d 20 20 2f 2a 20 53 | 70 6c 69 74 20 61 72 67 |..  /* S|plit arg|
|00005c50| 62 75 66 20 69 6e 74 6f | 20 69 74 73 20 73 65 70 |buf into| its sep|
|00005c60| 61 72 61 74 65 20 70 69 | 70 65 64 20 70 72 6f 63 |arate pi|ped proc|
|00005c70| 65 73 73 65 73 2c 0d 20 | 20 20 20 20 61 6e 64 20 |esses,. |    and |
|00005c80| 72 65 63 6f 72 64 20 69 | 6e 66 6f 20 61 62 6f 75 |record i|nfo abou|
|00005c90| 74 20 65 61 63 68 20 6f | 6e 65 2e 0d 20 20 20 20 |t each o|ne..    |
|00005ca0| 20 41 6c 73 6f 20 73 65 | 61 72 63 68 20 66 6f 72 | Also se|arch for|
|00005cb0| 20 74 68 65 20 70 72 6f | 67 72 61 6d 73 20 74 68 | the pro|grams th|
|00005cc0| 61 74 20 61 72 65 20 74 | 6f 20 62 65 20 72 75 6e |at are t|o be run|
|00005cd0| 2e 20 20 2a 2f 0d 0d 20 | 20 63 6f 6d 6d 61 6e 64 |.  */.. | command|
|00005ce0| 73 5b 30 5d 2e 70 72 6f | 67 20 3d 20 61 72 67 62 |s[0].pro|g = argb|
|00005cf0| 75 66 5b 30 5d 3b 20 2f | 2a 20 66 69 72 73 74 20 |uf[0]; /|* first |
|00005d00| 63 6f 6d 6d 61 6e 64 2e | 20 20 2a 2f 0d 20 20 63 |command.|  */.  c|
|00005d10| 6f 6d 6d 61 6e 64 73 5b | 30 5d 2e 61 72 67 76 20 |ommands[|0].argv |
|00005d20| 3d 20 26 61 72 67 62 75 | 66 5b 30 5d 3b 0d 20 20 |= &argbu|f[0];.  |
|00005d30| 73 74 72 69 6e 67 20 3d | 20 66 69 6e 64 5f 65 78 |string =| find_ex|
|00005d40| 65 63 5f 66 69 6c 65 20 | 28 63 6f 6d 6d 61 6e 64 |ec_file |(command|
|00005d50| 73 5b 30 5d 2e 70 72 6f | 67 29 3b 0d 20 20 69 66 |s[0].pro|g);.  if|
|00005d60| 20 28 73 74 72 69 6e 67 | 29 0d 20 20 20 20 63 6f | (string|).    co|
|00005d70| 6d 6d 61 6e 64 73 5b 30 | 5d 2e 61 72 67 76 5b 30 |mmands[0|].argv[0|
|00005d80| 5d 20 3d 20 73 74 72 69 | 6e 67 3b 0d 0d 20 20 66 |] = stri|ng;..  f|
|00005d90| 6f 72 20 28 6e 5f 63 6f | 6d 6d 61 6e 64 73 20 3d |or (n_co|mmands =|
|00005da0| 20 31 2c 20 69 20 3d 20 | 30 3b 20 69 20 3c 20 61 | 1, i = |0; i < a|
|00005db0| 72 67 62 75 66 5f 69 6e | 64 65 78 3b 20 69 2b 2b |rgbuf_in|dex; i++|
|00005dc0| 29 0d 20 20 20 20 69 66 | 20 28 73 74 72 63 6d 70 |).    if| (strcmp|
|00005dd0| 20 28 61 72 67 62 75 66 | 5b 69 5d 2c 20 22 7c 22 | (argbuf|[i], "|"|
|00005de0| 29 20 3d 3d 20 30 29 0d | 20 20 20 20 20 20 7b 09 |) == 0).|      {.|
|00005df0| 09 09 09 2f 2a 20 65 61 | 63 68 20 63 6f 6d 6d 61 |.../* ea|ch comma|
|00005e00| 6e 64 2e 20 20 2a 2f 0d | 09 61 72 67 62 75 66 5b |nd.  */.|.argbuf[|
|00005e10| 69 5d 20 3d 20 30 3b 09 | 2f 2a 20 74 65 72 6d 69 |i] = 0;.|/* termi|
|00005e20| 6e 61 74 69 6f 6e 20 6f | 66 20 63 6f 6d 6d 61 6e |nation o|f comman|
|00005e30| 64 20 61 72 67 73 2e 20 | 20 2a 2f 0d 09 63 6f 6d |d args. | */..com|
|00005e40| 6d 61 6e 64 73 5b 6e 5f | 63 6f 6d 6d 61 6e 64 73 |mands[n_|commands|
|00005e50| 5d 2e 70 72 6f 67 20 3d | 20 61 72 67 62 75 66 5b |].prog =| argbuf[|
|00005e60| 69 20 2b 20 31 5d 3b 0d | 09 63 6f 6d 6d 61 6e 64 |i + 1];.|.command|
|00005e70| 73 5b 6e 5f 63 6f 6d 6d | 61 6e 64 73 5d 2e 61 72 |s[n_comm|ands].ar|
|00005e80| 67 76 20 3d 20 26 61 72 | 67 62 75 66 5b 69 20 2b |gv = &ar|gbuf[i +|
|00005e90| 20 31 5d 3b 0d 09 73 74 | 72 69 6e 67 20 3d 20 66 | 1];..st|ring = f|
|00005ea0| 69 6e 64 5f 65 78 65 63 | 5f 66 69 6c 65 20 28 63 |ind_exec|_file (c|
|00005eb0| 6f 6d 6d 61 6e 64 73 5b | 6e 5f 63 6f 6d 6d 61 6e |ommands[|n_comman|
|00005ec0| 64 73 5d 2e 70 72 6f 67 | 29 3b 0d 09 69 66 20 28 |ds].prog|);..if (|
|00005ed0| 73 74 72 69 6e 67 29 0d | 09 20 20 63 6f 6d 6d 61 |string).|.  comma|
|00005ee0| 6e 64 73 5b 6e 5f 63 6f | 6d 6d 61 6e 64 73 5d 2e |nds[n_co|mmands].|
|00005ef0| 61 72 67 76 5b 30 5d 20 | 3d 20 73 74 72 69 6e 67 |argv[0] |= string|
|00005f00| 3b 0d 09 6e 5f 63 6f 6d | 6d 61 6e 64 73 2b 2b 3b |;..n_com|mands++;|
|00005f10| 0d 20 20 20 20 20 20 7d | 0d 0d 20 20 61 72 67 62 |.      }|..  argb|
|00005f20| 75 66 5b 61 72 67 62 75 | 66 5f 69 6e 64 65 78 5d |uf[argbu|f_index]|
|00005f30| 20 3d 20 30 3b 0d 0d 20 | 20 2f 2a 20 49 66 20 2d | = 0;.. | /* If -|
|00005f40| 76 2c 20 70 72 69 6e 74 | 20 77 68 61 74 20 77 65 |v, print| what we|
|00005f50| 20 61 72 65 20 61 62 6f | 75 74 20 74 6f 20 64 6f | are abo|ut to do|
|00005f60| 2c 20 61 6e 64 20 6d 61 | 79 62 65 20 71 75 65 72 |, and ma|ybe quer|
|00005f70| 79 2e 20 20 2a 2f 0d 0d | 20 20 69 66 20 28 76 66 |y.  */..|  if (vf|
|00005f80| 6c 61 67 29 0d 20 20 20 | 20 7b 0d 20 20 20 20 20 |lag).   | {.     |
|00005f90| 20 2f 2a 20 50 72 69 6e | 74 20 65 61 63 68 20 70 | /* Prin|t each p|
|00005fa0| 69 70 65 64 20 63 6f 6d | 6d 61 6e 64 20 61 73 20 |iped com|mand as |
|00005fb0| 61 20 73 65 70 61 72 61 | 74 65 20 6c 69 6e 65 2e |a separa|te line.|
|00005fc0| 20 20 2a 2f 0d 20 20 20 | 20 20 20 66 6f 72 20 28 |  */.   |   for (|
|00005fd0| 69 20 3d 20 30 3b 20 69 | 20 3c 20 6e 5f 63 6f 6d |i = 0; i| < n_com|
|00005fe0| 6d 61 6e 64 73 20 3b 20 | 69 2b 2b 29 0d 09 7b 0d |mands ; |i++)..{.|
|00005ff0| 09 20 20 63 68 61 72 20 | 2a 2a 6a 3b 0d 0d 09 20 |.  char |**j;... |
|00006000| 20 66 6f 72 20 28 6a 20 | 3d 20 63 6f 6d 6d 61 6e | for (j |= comman|
|00006010| 64 73 5b 69 5d 2e 61 72 | 67 76 3b 20 2a 6a 3b 20 |ds[i].ar|gv; *j; |
|00006020| 6a 2b 2b 29 0d 09 20 20 | 20 20 66 70 72 69 6e 74 |j++)..  |  fprint|
|00006030| 66 20 28 73 74 64 65 72 | 72 2c 20 22 20 25 73 22 |f (stder|r, " %s"|
|00006040| 2c 20 2a 6a 29 3b 0d 0d | 09 20 20 2f 2a 20 50 72 |, *j);..|.  /* Pr|
|00006050| 69 6e 74 20 61 20 70 69 | 70 65 20 73 79 6d 62 6f |int a pi|pe symbo|
|00006060| 6c 20 61 66 74 65 72 20 | 61 6c 6c 20 62 75 74 20 |l after |all but |
|00006070| 74 68 65 20 6c 61 73 74 | 20 63 6f 6d 6d 61 6e 64 |the last| command|
|00006080| 2e 20 20 2a 2f 0d 09 20 | 20 69 66 20 28 69 20 2b |.  */.. | if (i +|
|00006090| 20 31 20 21 3d 20 6e 5f | 63 6f 6d 6d 61 6e 64 73 | 1 != n_|commands|
|000060a0| 29 0d 09 20 20 20 20 66 | 70 72 69 6e 74 66 20 28 |)..    f|printf (|
|000060b0| 73 74 64 65 72 72 2c 20 | 22 20 7c 22 29 3b 0d 09 |stderr, |" |");..|
|000060c0| 20 20 66 70 72 69 6e 74 | 66 20 28 73 74 64 65 72 |  fprint|f (stder|
|000060d0| 72 2c 20 22 5c 6e 22 29 | 3b 0d 09 7d 0d 20 20 20 |r, "\n")|;..}.   |
|000060e0| 20 20 20 66 66 6c 75 73 | 68 20 28 73 74 64 65 72 |   fflus|h (stder|
|000060f0| 72 29 3b 0d 23 69 66 64 | 65 66 20 44 45 42 55 47 |r);.#ifd|ef DEBUG|
|00006100| 0d 20 20 20 20 20 20 66 | 70 72 69 6e 74 66 20 28 |.      f|printf (|
|00006110| 73 74 64 65 72 72 2c 20 | 22 5c 6e 47 6f 20 61 68 |stderr, |"\nGo ah|
|00006120| 65 61 64 3f 20 28 79 20 | 6f 72 20 6e 29 20 22 29 |ead? (y |or n) ")|
|00006130| 3b 0d 20 20 20 20 20 20 | 66 66 6c 75 73 68 20 28 |;.      |fflush (|
|00006140| 73 74 64 65 72 72 29 3b | 0d 20 20 20 20 20 20 6a |stderr);|.      j|
|00006150| 20 3d 20 67 65 74 63 68 | 61 72 20 28 29 3b 0d 20 | = getch|ar ();. |
|00006160| 20 20 20 20 20 69 66 20 | 28 6a 20 21 3d 20 27 5c |     if |(j != '\|
|00006170| 6e 27 29 0d 09 77 68 69 | 6c 65 20 28 67 65 74 63 |n')..whi|le (getc|
|00006180| 68 61 72 20 28 29 20 21 | 3d 20 27 5c 6e 27 29 20 |har () !|= '\n') |
|00006190| 3b 0d 20 20 20 20 20 20 | 69 66 20 28 6a 20 21 3d |;.      |if (j !=|
|000061a0| 20 27 79 27 20 26 26 20 | 6a 20 21 3d 20 27 59 27 | 'y' && |j != 'Y'|
|000061b0| 29 0d 09 72 65 74 75 72 | 6e 20 30 3b 0d 23 65 6e |)..retur|n 0;.#en|
|000061c0| 64 69 66 20 2f 2a 20 44 | 45 42 55 47 20 2a 2f 0d |dif /* D|EBUG */.|
|000061d0| 20 20 20 20 7d 0d 0d 20 | 20 2f 2a 20 52 75 6e 20 |    }.. | /* Run |
|000061e0| 65 61 63 68 20 70 69 70 | 65 64 20 73 75 62 70 72 |each pip|ed subpr|
|000061f0| 6f 63 65 73 73 2e 20 20 | 2a 2f 0d 0d 20 20 6c 61 |ocess.  |*/..  la|
|00006200| 73 74 5f 70 69 70 65 5f | 69 6e 70 75 74 20 3d 20 |st_pipe_|input = |
|00006210| 53 54 44 49 4e 5f 46 49 | 4c 45 5f 4e 4f 3b 0d 20 |STDIN_FI|LE_NO;. |
|00006220| 20 66 6f 72 20 28 69 20 | 3d 20 30 3b 20 69 20 3c | for (i |= 0; i <|
|00006230| 20 6e 5f 63 6f 6d 6d 61 | 6e 64 73 3b 20 69 2b 2b | n_comma|nds; i++|
|00006240| 29 0d 20 20 20 20 7b 0d | 20 20 20 20 20 20 65 78 |).    {.|      ex|
|00006250| 74 65 72 6e 20 69 6e 74 | 20 65 78 65 63 76 28 29 |tern int| execv()|
|00006260| 2c 20 65 78 65 63 76 70 | 28 29 3b 0d 20 20 20 20 |, execvp|();.    |
|00006270| 20 20 63 68 61 72 20 2a | 73 74 72 69 6e 67 20 3d |  char *|string =|
|00006280| 20 63 6f 6d 6d 61 6e 64 | 73 5b 69 5d 2e 61 72 67 | command|s[i].arg|
|00006290| 76 5b 30 5d 3b 0d 0d 20 | 20 20 20 20 20 63 6f 6d |v[0];.. |     com|
|000062a0| 6d 61 6e 64 73 5b 69 5d | 2e 70 69 64 20 3d 20 70 |mands[i]|.pid = p|
|000062b0| 65 78 65 63 75 74 65 20 | 28 28 73 74 72 69 6e 67 |execute |((string|
|000062c0| 20 21 3d 20 63 6f 6d 6d | 61 6e 64 73 5b 69 5d 2e | != comm|ands[i].|
|000062d0| 70 72 6f 67 20 3f 20 65 | 78 65 63 76 20 3a 20 65 |prog ? e|xecv : e|
|000062e0| 78 65 63 76 70 29 2c 0d | 09 09 09 09 20 20 73 74 |xecvp),.|....  st|
|000062f0| 72 69 6e 67 2c 20 63 6f | 6d 6d 61 6e 64 73 5b 69 |ring, co|mmands[i|
|00006300| 5d 2e 61 72 67 76 2c 0d | 09 09 09 09 20 20 69 20 |].argv,.|....  i |
|00006310| 2b 20 31 20 3c 20 6e 5f | 63 6f 6d 6d 61 6e 64 73 |+ 1 < n_|commands|
|00006320| 29 3b 0d 0d 20 20 20 20 | 20 20 69 66 20 28 73 74 |);..    |  if (st|
|00006330| 72 69 6e 67 20 21 3d 20 | 63 6f 6d 6d 61 6e 64 73 |ring != |commands|
|00006340| 5b 69 5d 2e 70 72 6f 67 | 29 0d 09 66 72 65 65 20 |[i].prog|)..free |
|00006350| 28 73 74 72 69 6e 67 29 | 3b 0d 20 20 20 20 7d 0d |(string)|;.    }.|
|00006360| 0d 20 20 65 78 65 63 75 | 74 69 6f 6e 5f 63 6f 75 |.  execu|tion_cou|
|00006370| 6e 74 2b 2b 3b 0d 0d 20 | 20 2f 2a 20 57 61 69 74 |nt++;.. | /* Wait|
|00006380| 20 66 6f 72 20 61 6c 6c | 20 74 68 65 20 73 75 62 | for all| the sub|
|00006390| 70 72 6f 63 65 73 73 65 | 73 20 74 6f 20 66 69 6e |processe|s to fin|
|000063a0| 69 73 68 2e 0d 20 20 20 | 20 20 57 65 20 64 6f 6e |ish..   |  We don|
|000063b0| 27 74 20 63 61 72 65 20 | 77 68 61 74 20 6f 72 64 |'t care |what ord|
|000063c0| 65 72 20 74 68 65 79 20 | 66 69 6e 69 73 68 20 69 |er they |finish i|
|000063d0| 6e 3b 0d 20 20 20 20 20 | 77 65 20 6b 6e 6f 77 20 |n;.     |we know |
|000063e0| 74 68 61 74 20 4e 5f 43 | 4f 4d 4d 41 4e 44 53 20 |that N_C|OMMANDS |
|000063f0| 77 61 69 74 73 20 77 69 | 6c 6c 20 67 65 74 20 74 |waits wi|ll get t|
+--------+-------------------------+-------------------------+--------+--------+