1 files changed, 148 insertions, 0 deletions
diff --git a/src/qmail-vmailuser.c b/src/qmail-vmailuser.c
new file mode 100644
index 0000000..27dc85d
--- /dev/null
+++ b/src/qmail-vmailuser.c
@@ -0,0 +1,148 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include "global.h"
+#include "auto_qmail.h"
+#include "stralloc.h"
+#include "case.h"
+#include "control.h"
+#include "constmap.h"
+#include "direntry.h"
+#include "error.h"
+#include "str.h"
+#include "fmt.h"
+#include "open.h"
+#include "byte.h"
+#include "scan.h"
+#include "str.h"
+
+#define FDAUTH 3
+#define RESPECT_CASE "-C"
+#define BUFFER_SIZE 128
+
+/** @file qmail-vmailuser.c
+    @return 0: virtual user exists 
+            1: virtual user dir not accessible
+            2: qmail-vmailuser is misused
+            110: can't read controls
+            111: temporary problem
+*/
+
+char inputbuf[BUFFER_SIZE];
+struct constmap mapvdoms;
+stralloc vdoms = {0};
+stralloc vdomdir = {0};
+stralloc vuser = {0};
+stralloc vuserdir = {0};
+
+void pam_exit(int fail)
+{
+  int i;
+
+  close(FDAUTH);
+  for (i = 0; i < sizeof(inputbuf); ++i) inputbuf[i] = 0;
+  _exit(fail);
+}
+
+int main(int argc,char **argv)
+{
+  DIR *dir;
+  char *vdomuser; 
+  char *domain = 0;
+  int buflen = 0;
+  int domlen = 0;
+  int flagrespect = 0;
+  int i, r;
+  char ch;
+  char *homedir = "/home";
+
+  if (argv[1])  
+    if (!case_diffs(argv[1],RESPECT_CASE)) {
+       flagrespect = 1;
+    } else {
+      homedir = argv[1];
+      dir = opendir(homedir);
+      if (!dir) pam_exit(2);
+    }
+
+  if (argv[2])  
+    if (!case_diffs(argv[2],RESPECT_CASE)) flagrespect = 1;
+
+  if (chdir(auto_qmail) == -1) pam_exit(110);
+ 
+  switch (control_readfile(&vdoms,"control/virtualdomains",0)) {
+    case -1: pam_exit(110);
+    case  0: if (!constmap_init(&mapvdoms,"",0,1)) pam_exit(111);
+    case  1: if (!constmap_init(&mapvdoms,vdoms.s,vdoms.len,1)) pam_exit(111);
+  }
+
+  for (;;) {						/* read input */
+    do
+      r = read(FDAUTH,inputbuf + buflen,sizeof(inputbuf) - buflen);
+    while ((r == -1) && (errno == EINTR));
+    if (r == -1) pam_exit(111);
+    if (r == 0) break;
+    buflen += r;
+    if (buflen >= sizeof(inputbuf)) pam_exit(2);
+  }
+  close(FDAUTH);
+
+  if ((r = byte_rchr(inputbuf,buflen,'@')))			/* @domain */
+    if (r < buflen && inputbuf[r] == '@') {
+      domain = inputbuf + r + 1;
+      domlen = str_len(domain);
+      if (!flagrespect)
+        case_lowerb(inputbuf,buflen);
+      else
+        case_lowerb(domain,domlen);
+    }
+  vdomuser = constmap(&mapvdoms,domain,domlen);
+  if (!vdomuser) pam_exit(1);
+
+  if (!stralloc_copys(&vuser,"")) pam_exit(111);		/* user */
+  for (i = 0; i < r; ++i) {
+    ch = inputbuf[i];
+    if (ch == '.') ch = ':';
+    if (!stralloc_append(&vuser,&ch)) pam_exit(111);
+  }
+  if (!stralloc_0(&vuser)) pam_exit(111); 
+
+  if (!stralloc_copys(&vdomdir,homedir)) pam_exit(111);  	/* vpopmail */
+  if (!stralloc_cats(&vdomdir,"/")) pam_exit(111);  
+  if (!stralloc_cats(&vdomdir,"vpopmail")) pam_exit(111);
+  if (!stralloc_copy(&vuserdir,&vdomdir)) pam_exit(111);  
+  if (!stralloc_cats(&vuserdir,"/domains/")) pam_exit(111);
+  if (!stralloc_cats(&vuserdir,vdomuser)) pam_exit(111);  
+  if (!stralloc_copy(&vdomdir,&vuserdir)) pam_exit(111);  
+  if (!stralloc_0(&vdomdir)) pam_exit(111); 
+
+  dir = opendir(vdomdir.s);
+  if (dir) {
+    if (!stralloc_cats(&vuserdir,"/")) pam_exit(111);  
+    if (!stralloc_cat(&vuserdir,&vuser)) pam_exit(111);  
+    if (!stralloc_0(&vuserdir)) pam_exit(111); 
+
+    dir = opendir(vuserdir.s);
+    if (dir) pam_exit(0);
+  }
+
+  if (!stralloc_copys(&vdomdir,homedir)) pam_exit(111);  	/* vmailmgr */
+  if (!stralloc_cats(&vdomdir,"/")) pam_exit(111);  
+  if (!stralloc_copy(&vuserdir,&vdomdir)) pam_exit(111);  
+  if (!stralloc_cats(&vuserdir,vdomuser)) pam_exit(111);  
+  if (!stralloc_cats(&vuserdir,"/users")) pam_exit(111);  
+  if (!stralloc_copy(&vdomdir,&vuserdir)) pam_exit(111);  
+  if (!stralloc_0(&vdomdir)) pam_exit(111); 
+
+  dir = opendir(vdomdir.s);
+  if (dir) {
+    if (!stralloc_cats(&vuserdir,"/")) pam_exit(111);  
+    if (!stralloc_cat(&vuserdir,&vuser)) pam_exit(111);  
+    if (!stralloc_0(&vuserdir)) pam_exit(111); 
+
+    dir = opendir(vuserdir.s);
+    if (dir) pam_exit(0);
+  }
+   
+  pam_exit(1);
+}