| 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 | } |