1 files changed, 147 insertions, 0 deletions
diff --git a/idedit.c b/idedit.c
new file mode 100644
index 0000000..e6747b5
--- /dev/null
+++ b/idedit.c
@@ -0,0 +1,147 @@
+#include <sys/types.h>
+#include <pwd.h>
+#include <grp.h>
+#include "readwrite.h"
+#include "exit.h"
+#include "scan.h"
+#include "fmt.h"
+#include "strerr.h"
+#include "open.h"
+#include "seek.h"
+#include "fork.h"
+
+#define FATAL "idedit: fatal: "
+#define WARNING "idedit: warning: "
+
+int fd;
+
+void byte(pos,value)
+char *pos;
+unsigned int value;
+{
+  unsigned long u;
+  unsigned char ch;
+
+  if (pos[scan_ulong(pos,&u)]) return;
+
+  if (seek_set(fd,(seek_pos) u) == -1)
+    strerr_die2sys(111,FATAL,"unable to seek: ");
+
+  ch = value;
+  if (write(fd,&ch,1) != 1)
+    strerr_die2sys(111,FATAL,"unable to write: ");
+}
+
+char *args[10];
+
+void run()
+{
+  int pid;
+  int wstat;
+
+  pid = fork();
+  if (pid == -1)
+    strerr_die2sys(111,FATAL,"unable to fork: ");
+
+  if (pid == 0) {
+    execv(*args,args);
+    strerr_die4sys(111,WARNING,"unable to run ",*args,": ");
+  }
+
+  if (wait_pid(&wstat,pid) != pid)
+    strerr_die2sys(111,FATAL,"waitpid surprise");
+}
+
+void u(account,group,home,pos0,pos1,pos2,pos3)
+char *account;
+char *group;
+char *home;
+char *pos0;
+char *pos1;
+char *pos2;
+char *pos3;
+{
+  struct passwd *pw;
+  unsigned int value;
+
+  pw = getpwnam(account);
+
+  if (!pw && group) {
+    args[0] = "add-account";
+    args[1] = account;
+    args[2] = group;
+    args[3] = home;
+    args[4] = 0;
+    run();
+    pw = getpwnam(account);
+  }
+
+  if (!pw)
+    strerr_die3x(111,FATAL,"unable to find uid for ",account);
+
+  value = pw->pw_uid;
+  byte(pos0,value); value >>= 8;
+  byte(pos1,value); value >>= 8;
+  byte(pos2,value); value >>= 8;
+  byte(pos3,value); value >>= 8;
+  if (value)
+    strerr_die3x(111,FATAL,"excessively large uid for ",account);
+}
+
+void g(group,pos0,pos1,pos2,pos3)
+char *group;
+char *pos0;
+char *pos1;
+char *pos2;
+char *pos3;
+{
+  struct group *gr;
+  unsigned int value;
+
+  gr = getgrnam(group);
+
+  if (!gr) {
+    args[0] = "add-group";
+    args[1] = group;
+    args[2] = 0;
+    run();
+    gr = getgrnam(group);
+  }
+
+  if (!gr)
+    strerr_die3x(111,FATAL,"unable to find gid for ",group);
+
+  value = gr->gr_gid;
+  byte(pos0,value); value >>= 8;
+  byte(pos1,value); value >>= 8;
+  byte(pos2,value); value >>= 8;
+  byte(pos3,value); value >>= 8;
+  if (value)
+    strerr_die3x(111,FATAL,"excessively large gid for ",group);
+}
+
+void main(argc,argv)
+int argc;
+char **argv;
+{
+  if (argc < 42) _exit(100);
+
+  fd = open_write(argv[1]);
+  if (fd == -1) strerr_die4sys(111,FATAL,"unable to open ",argv[1],": ");
+
+  g("qmail",argv[34],argv[35],argv[36],argv[37]);
+  g("nofiles",argv[38],argv[39],argv[40],argv[41]);
+
+  u("root",(char *) 0,"/",argv[14],argv[15],argv[16],argv[17]);
+
+  u("qmaild","nofiles","/var/qmail",argv[6],argv[7],argv[8],argv[9]);
+  u("qmaill","nofiles","/var/qmail",argv[10],argv[11],argv[12],argv[13]);
+  u("qmailp","nofiles","/var/qmail",argv[18],argv[19],argv[20],argv[21]);
+  u("alias","nofiles","/var/qmail/alias",argv[2],argv[3],argv[4],argv[5]);
+
+  u("qmailq","qmail","/var/qmail",argv[22],argv[23],argv[24],argv[25]);
+  u("qmailr","qmail","/var/qmail",argv[26],argv[27],argv[28],argv[29]);
+  u("qmails","qmail","/var/qmail",argv[30],argv[31],argv[32],argv[33]);
+
+  _exit(0);
+}