1 #include <sys/types.h>

     2 #include <pwd.h>

     3 #include <grp.h>

     4 #include "readwrite.h"

     5 #include "exit.h"

     6 #include "scan.h"

     7 #include "fmt.h"

     8 #include "strerr.h"

     9 #include "open.h"

    10 #include "seek.h"

    11 #include "fork.h"

    12 

    13 #define FATAL "idedit: fatal: "

    14 #define WARNING "idedit: warning: "

    15 

    16 int fd;

    17 

    18 void byte(pos,value)

    19 char *pos;

    20 unsigned int value;

    21 {

    22   unsigned long u;

    23   unsigned char ch;

    24 

    25   if (pos[scan_ulong(pos,&u)]) return;

    26 

    27   if (seek_set(fd,(seek_pos) u) == -1)

    28     strerr_die2sys(111,FATAL,"unable to seek: ");

    29 

    30   ch = value;

    31   if (write(fd,&ch,1) != 1)

    32     strerr_die2sys(111,FATAL,"unable to write: ");

    33 }

    34 

    35 char *args[10];

    36 

    37 void run()

    38 {

    39   int pid;

    40   int wstat;

    41 

    42   pid = fork();

    43   if (pid == -1)

    44     strerr_die2sys(111,FATAL,"unable to fork: ");

    45 

    46   if (pid == 0) {

    47     execv(*args,args);

    48     strerr_die4sys(111,WARNING,"unable to run ",*args,": ");

    49   }

    50 

    51   if (wait_pid(&wstat,pid) != pid)

    52     strerr_die2sys(111,FATAL,"waitpid surprise");

    53 }

    54 

    55 void u(account,group,home,pos0,pos1,pos2,pos3)

    56 char *account;

    57 char *group;

    58 char *home;

    59 char *pos0;

    60 char *pos1;

    61 char *pos2;

    62 char *pos3;

    63 {

    64   struct passwd *pw;

    65   unsigned int value;

    66 

    67   pw = getpwnam(account);

    68 

    69   if (!pw && group) {

    70     args[0] = "add-account";

    71     args[1] = account;

    72     args[2] = group;

    73     args[3] = home;

    74     args[4] = 0;

    75     run();

    76     pw = getpwnam(account);

    77   }

    78 

    79   if (!pw)

    80     strerr_die3x(111,FATAL,"unable to find uid for ",account);

    81 

    82   value = pw->pw_uid;

    83   byte(pos0,value); value >>= 8;

    84   byte(pos1,value); value >>= 8;

    85   byte(pos2,value); value >>= 8;

    86   byte(pos3,value); value >>= 8;

    87   if (value)

    88     strerr_die3x(111,FATAL,"excessively large uid for ",account);

    89 }

    90 

    91 void g(group,pos0,pos1,pos2,pos3)

    92 char *group;

    93 char *pos0;

    94 char *pos1;

    95 char *pos2;

    96 char *pos3;

    97 {

    98   struct group *gr;

    99   unsigned int value;

   100 

   101   gr = getgrnam(group);

   102 

   103   if (!gr) {

   104     args[0] = "add-group";

   105     args[1] = group;

   106     args[2] = 0;

   107     run();

   108     gr = getgrnam(group);

   109   }

   110 

   111   if (!gr)

   112     strerr_die3x(111,FATAL,"unable to find gid for ",group);

   113 

   114   value = gr->gr_gid;

   115   byte(pos0,value); value >>= 8;

   116   byte(pos1,value); value >>= 8;

   117   byte(pos2,value); value >>= 8;

   118   byte(pos3,value); value >>= 8;

   119   if (value)

   120     strerr_die3x(111,FATAL,"excessively large gid for ",group);

   121 }

   122 

   123 void main(argc,argv)

   124 int argc;

   125 char **argv;

   126 {

   127   if (argc < 42) _exit(100);

   128 

   129   fd = open_write(argv[1]);

   130   if (fd == -1) strerr_die4sys(111,FATAL,"unable to open ",argv[1],": ");

   131 

   132   g("qmail",argv[34],argv[35],argv[36],argv[37]);

   133   g("nofiles",argv[38],argv[39],argv[40],argv[41]);

   134 

   135   u("root",(char *) 0,"/",argv[14],argv[15],argv[16],argv[17]);

   136 

   137   u("qmaild","nofiles","/var/qmail",argv[6],argv[7],argv[8],argv[9]);

   138   u("qmaill","nofiles","/var/qmail",argv[10],argv[11],argv[12],argv[13]);

   139   u("qmailp","nofiles","/var/qmail",argv[18],argv[19],argv[20],argv[21]);

   140   u("alias","nofiles","/var/qmail/alias",argv[2],argv[3],argv[4],argv[5]);

   141 

   142   u("qmailq","qmail","/var/qmail",argv[22],argv[23],argv[24],argv[25]);

   143   u("qmailr","qmail","/var/qmail",argv[26],argv[27],argv[28],argv[29]);

   144   u("qmails","qmail","/var/qmail",argv[30],argv[31],argv[32],argv[33]);

   145 

   146   _exit(0);

   147 }