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path: root/sqmail-4.3.07/src/recipients.c
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Diffstat (limited to 'sqmail-4.3.07/src/recipients.c')
-rw-r--r--sqmail-4.3.07/src/recipients.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/sqmail-4.3.07/src/recipients.c b/sqmail-4.3.07/src/recipients.c
deleted file mode 100644
index 955dbd0..0000000
--- a/sqmail-4.3.07/src/recipients.c
+++ /dev/null
@@ -1,288 +0,0 @@
-#include <unistd.h>
-#include "cdbread.h"
-#include "byte.h"
-#include "open.h"
-#include "control.h"
-#include "constmap.h"
-#include "stralloc.h"
-#include "recipients.h"
-#include "wait.h"
-#include "str.h"
-#include "fd.h"
-#include "sig.h"
-#include "case.h"
-#include "buffer.h"
-#include "auto_break.h"
-#define FDAUTH 3
-
-static stralloc key = {0};
-static stralloc domain = {0};
-static stralloc wildhost = {0};
-static stralloc address = {0};
-static stralloc rcptline = {0};
-static stralloc vkey = {0};
-static stralloc verp = {0};
-static stralloc user = {0};
-static stralloc ukey = {0};
-static int flagrcpts = 0;
-static int fdrcps;
-static struct cdb cdb;
-
-/** @file recipients.c
- @brief functions recipients_init, recipients, recipients_parse, callapam
- @param pointer to address, length of address
- @return -3: problem with PAM
- -2: out of memory
- -1: error reading control file
- 0: address not found; unsuccessful
- 1: CDB lookup; successful
- 2: PAM lookup; successful
- 3: USERS lookup; successful
- 4: Wildcarded domain; successful
- 5: Pass-thru; neutral
- 10: none existing control file; pass-thru
-*/
-
-int recipients_init()
-{
- flagrcpts = control_readfile(&rcptline,"control/recipients",0);
- if (flagrcpts != 1) return flagrcpts;
- return 0;
-}
-
-char rcptbuf[512];
-buffer br = BUFFER_INIT(safewrite,FDAUTH,rcptbuf,sizeof(rcptbuf));
-
-int callapam(char *pam,char *addr)
-{
- int i;
- int j=0;
- int wstat;
- int pi[2];
- int child;
- char ch;
- static stralloc mailaddress = {0};
-
- char *childargs[7] = {0, 0, 0, 0, 0, 0, 0};
- stralloc pamarg = {0};
- stralloc pamname = {0};
- stralloc pamarg1 = {0};
- stralloc pamarg2 = {0};
- stralloc pamarg3 = {0};
- stralloc pamarg4 = {0};
- stralloc pamarg5 = {0};
-
- for (i = 0; (ch = pam[i]); i++) {
- if (j < 6) {
- if (ch != ' ')
- if (!stralloc_append(&pamarg,&ch)) return -2;
- if (ch == ' ' || ch == '\n' || i == str_len(pam) - 1) {
- if (!stralloc_0(&pamarg)) return -2;
- switch (j) {
- case 0:
- if (!stralloc_copy(&pamname,&pamarg)) return -2;
- childargs[0] = pamname.s;
- case 1:
- if (!stralloc_copy(&pamarg1,&pamarg)) return -2;
- childargs[1] = pamarg1.s;
- case 2:
- if (!stralloc_copy(&pamarg2,&pamarg)) return -2;
- childargs[2] = pamarg2.s;
- case 3:
- if (!stralloc_copy(&pamarg3,&pamarg)) return -2;
- childargs[3] = pamarg3.s;
- case 4:
- if (!stralloc_copy(&pamarg4,&pamarg)) return -2;
- childargs[4] = pamarg4.s;
- case 5:
- if (!stralloc_copy(&pamarg5,&pamarg)) return -2;
- childargs[5] = pamarg5.s;
- }
- j++;
- if (!stralloc_copys(&pamarg,"")) return -2;
- }
- }
- }
- childargs[j] = 0;
-
- close(FDAUTH);
- if (pipe(pi) == -1) return -3;
- if (pi[0] != FDAUTH) return -3;
-
- switch (child = fork()) {
- case -1:
- return -3;
- case 0:
- close(pi[1]);
- if (fd_copy(FDAUTH,pi[0]) == -1) return -3;
- sig_pipedefault();
- execvp(childargs[0],childargs);
- return 111;
- }
- close(pi[0]);
-
-/* checkpassword compliant form: address\0\0\0 */
-
- if (!stralloc_copys(&mailaddress,addr)) return -2;
- if (!stralloc_0(&mailaddress)) return -2;
- if (!stralloc_0(&mailaddress)) return -2;
- if (!stralloc_0(&mailaddress)) return -2;
-
- buffer_init(&br,write,pi[1],rcptbuf,sizeof(rcptbuf));
- if (buffer_put(&br,mailaddress.s,mailaddress.len) == -1) return -3;
- if (buffer_flush(&br) == -1) return -3;
- close(pi[1]);
-
- if (wait_pid(&wstat,child) == -1) return -3;
- if (wait_crashed(wstat)) return -3;
- return wait_exitcode(wstat);
-}
-
-int recipients_parse(char *rhost,int rlen,char *addr,char *rkey,int klen,char *vaddr,char *vkey,int vlen,char *ukey,int ulen)
-{
- int i;
- int r;
- int j = 0;
- int k = 0;
- int u = 0;
- static stralloc line = {0};
- int seenhost = 0;
-
- if (!stralloc_copys(&line,"")) return -2;
- if (!stralloc_copys(&wildhost,"!")) return -2;
- if (!stralloc_cats(&wildhost,rhost)) return -2;
- if (!stralloc_0(&wildhost)) return -2;
-
- for (i = 0; i < rcptline.len; ++i) {
- if (!stralloc_append(&line,&rcptline.s[i])) return -2;
-
- if (rcptline.s[i] == '\0') {
- if (!stralloc_0(&line)) return -2;
-
- j = byte_chr(line.s,line.len,':'); /* cdb */
- k = byte_chr(line.s,line.len,'|'); /* pam */
- u = byte_chr(line.s,line.len,'='); /* assign users */
-
- if (!str_diffn(line.s,wildhost.s,wildhost.len - 1)) return 4; /* wilddomain */
- if ((j && j < line.len) || (k && k < line.len) || (u && u < line.len))
- if (!str_diffn(line.s,"@",1)) /* exact */
- if (!str_diffn(line.s + 1,rhost,rlen - 1)) seenhost = 1;
-
- if (!seenhost) { /* domain */
- if (j && rlen >= j)
- if (!str_diffn(line.s,rhost + rlen - j - 1,j - 1)) seenhost = 2;
- if (k && rlen >= k)
- if (!str_diffn(line.s,rhost + rlen - k - 1,k - 1)) seenhost = 3;
- if (u && rlen >= u)
- if (!str_diffn(line.s,rhost + rlen - u - 2,u - 2)) seenhost = 4;
- }
- if (!seenhost) /* pass-thru */
- if (!str_diffn(line.s,"!*",2)) return 5;
-
- if (k && k < line.len) /* pam */
- if (seenhost || !str_diffn(line.s,"*",1)) {
- r = callapam(line.s + k + 1,addr);
- if (vlen > 0 && r != 0)
- r = callapam(line.s + k + 1,vaddr);
- if (r == 0) return 2;
- if (r == 111) return r;
- }
-
- if (u && u < line.len) /* qmail-users */
- if (seenhost || !str_diffn(line.s,"*",1)) {
- fdrcps = open_read("users/assign.cdb");
- if (fdrcps != -1) {
- cdb_init(&cdb,fdrcps);
- r = cdb_find(&cdb,ukey,ulen - 2);
- cdb_free(&cdb);
- close(fdrcps);
- if (r) return 3;
- }
- }
-
- if (j && j < line.len) /* cdb */
- if (seenhost || !str_diffn(line.s,"*",1)) {
- fdrcps = open_read(line.s + j + 1);
- if (fdrcps != -1) {
- cdb_init(&cdb,fdrcps);
- r = cdb_find(&cdb,rkey,klen - 2);
- if (vlen > 0 && r == 0)
- r = cdb_find(&cdb,vkey,vlen - 2);
- cdb_free(&cdb);
- close(fdrcps);
- if (r) return 1;
- }
- }
-
- if (!seenhost) {
- fdrcps = open_read(line.s); /* legacy cdb */
- if (fdrcps != -1) {
- cdb_init(&cdb,fdrcps);
- r = cdb_find(&cdb,rkey,klen - 2);
- if (vlen > 0 && r == 0)
- r = cdb_find(&cdb,vkey,vlen - 2);
- cdb_free(&cdb);
- close(fdrcps);
- if (r) return 1;
- }
- }
-
- if (!stralloc_copys(&line,"")) return -2;
- }
- }
- return 0;
-}
-
-int recipients(char *buf,int len)
-{
- int at;
- int i;
- int r;
-
- if (flagrcpts != 1) return 10;
-
- at = byte_rchr(buf,len,'@');
- if (at && at < len) {
- if (!stralloc_copyb(&domain,buf + at + 1,len - at - 1)) return -2;
- if (!stralloc_copyb(&address,buf,len)) return -2;
- } else {
- if (!stralloc_copyb(&address,buf,len)) return -2;
- if (!stralloc_append(&address,"@")) return -2;
- if (!stralloc_copys(&domain,"localhost")) return -2;
- if (!stralloc_cat(&address,&domain)) return -2;
- }
- if (!stralloc_copyb(&user,buf,at - 1)) return -2;
-
- if (!stralloc_0(&user)) return -2;
- if (!stralloc_0(&address)) return -2;
- if (!stralloc_0(&domain)) return -2;
-
- if (!stralloc_copys(&key,":")) return -2;
- if (!stralloc_cat(&key,&address)) return -2;
- if (!stralloc_0(&key)) return -2; /* \0\0 terminated */
- case_lowerb(key.s,key.len);
- case_lowerb(domain.s,domain.len);
-
- if (!stralloc_copys(&ukey,"!=")) return -2;
- if (!stralloc_cat(&ukey,&user)) return -2;
- if (!stralloc_0(&ukey)) return -2; /* \0\0 terminated */
- case_lowerb(ukey.s,ukey.len);
-
-
- for (i = 0; i < at; i++) { /* VERP addresses */
- if (buf[i] == *auto_break || buf[i] == '=' || buf[i] == '+') { /* SRS delimiter */
- if (!stralloc_copyb(&verp,buf,i + 1)) return -2;
- if (!stralloc_append(&verp,"@")) return -2;
- if (!stralloc_cat(&verp,&domain)) return -2;
- if (!stralloc_copys(&vkey,":")) return -2;
- if (!stralloc_cat(&vkey,&verp)) return -2;
- if (!stralloc_0(&vkey)) return -2; /* \0\0 terminated */
- case_lowerb(vkey.s,vkey.len);
- break;
- }
- }
-
- r = recipients_parse(domain.s,domain.len,address.s,key.s,key.len,verp.s,vkey.s,vkey.len,ukey.s,ukey.len);
- if (r) return r;
- return 0;
-}
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