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- #include <sys/types.h>
- #include <sys/stat.h>
- #include "substdio.h"
- #include "readwrite.h"
- #include "subfd.h"
- #include "sgetopt.h"
- #include "control.h"
- #include "constmap.h"
- #include "stralloc.h"
- #include "fmt.h"
- #include "str.h"
- #include "scan.h"
- #include "open.h"
- #include "error.h"
- #include "getln.h"
- #include "auto_break.h"
- #include "auto_qmail.h"
- #include "auto_usera.h"
-
- void die_chdir()
- {
- substdio_putsflush(subfderr,"qmail-pw2u: fatal: unable to chdir\n");
- _exit(111);
- }
- void die_nomem()
- {
- substdio_putsflush(subfderr,"qmail-pw2u: fatal: out of memory\n");
- _exit(111);
- }
- void die_read()
- {
- substdio_putsflush(subfderr,"qmail-pw2u: fatal: unable to read input\n");
- _exit(111);
- }
- void die_write()
- {
- substdio_putsflush(subfderr,"qmail-pw2u: fatal: unable to write output\n");
- _exit(111);
- }
- void die_control()
- {
- substdio_putsflush(subfderr,"qmail-pw2u: fatal: unable to read controls\n");
- _exit(111);
- }
- void die_alias()
- {
- substdio_puts(subfderr,"qmail-pw2u: fatal: unable to find ");
- substdio_puts(subfderr,auto_usera);
- substdio_puts(subfderr," user\n");
- substdio_flush(subfderr);
- _exit(111);
- }
- void die_home(fn) char *fn;
- {
- substdio_puts(subfderr,"qmail-pw2u: fatal: unable to stat ");
- substdio_puts(subfderr,fn);
- substdio_puts(subfderr,"\n");
- substdio_flush(subfderr);
- _exit(111);
- }
- void die_user(s,len) char *s; unsigned int len;
- {
- substdio_puts(subfderr,"qmail-pw2u: fatal: unable to find ");
- substdio_put(subfderr,s,len);
- substdio_puts(subfderr," user for subuser\n");
- substdio_flush(subfderr);
- _exit(111);
- }
-
- int flagalias = 0;
- int flagnoupper = 1;
- int homestrategy = 2;
- /* 2: skip if home does not exist; skip if home is not owned by user */
- /* 1: stop if home does not exist; skip if home is not owned by user */
- /* 0: don't worry about home */
-
- int okincl; stralloc incl = {0}; struct constmap mapincl;
- int okexcl; stralloc excl = {0}; struct constmap mapexcl;
- int okmana; stralloc mana = {0}; struct constmap mapmana;
-
- stralloc allusers = {0}; struct constmap mapuser;
-
- stralloc uugh = {0};
- stralloc user = {0};
- stralloc uidstr = {0};
- stralloc gidstr = {0};
- stralloc home = {0};
- unsigned long uid;
-
- stralloc line = {0};
-
- void doaccount()
- {
- struct stat st;
- int i;
- char *mailnames;
- char *x;
- unsigned int xlen;
-
- if (byte_chr(line.s,line.len,'\0') < line.len) return;
-
- x = line.s; xlen = line.len; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- if (!stralloc_copyb(&user,x,i)) die_nomem();
- if (!stralloc_0(&user)) die_nomem();
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- if (!stralloc_copyb(&uidstr,x,i)) die_nomem();
- if (!stralloc_0(&uidstr)) die_nomem();
- scan_ulong(uidstr.s,&uid);
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- if (!stralloc_copyb(&gidstr,x,i)) die_nomem();
- if (!stralloc_0(&gidstr)) die_nomem();
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- if (!stralloc_copyb(&home,x,i)) die_nomem();
- if (!stralloc_0(&home)) die_nomem();
-
- if (!uid) return;
- if (flagnoupper)
- for (i = 0;i < user.len;++i)
- if ((user.s[i] >= 'A') && (user.s[i] <= 'Z'))
- return;
- if (okincl)
- if (!constmap(&mapincl,user.s,user.len - 1))
- return;
- if (okexcl)
- if (constmap(&mapexcl,user.s,user.len - 1))
- return;
- if (homestrategy) {
- if (stat(home.s,&st) == -1) {
- if (errno != error_noent) die_home(home.s);
- if (homestrategy == 1) die_home(home.s);
- return;
- }
- if (st.st_uid != uid) return;
- }
-
- if (!stralloc_copys(&uugh,":")) die_nomem();
- if (!stralloc_cats(&uugh,user.s)) die_nomem();
- if (!stralloc_cats(&uugh,":")) die_nomem();
- if (!stralloc_cats(&uugh,uidstr.s)) die_nomem();
- if (!stralloc_cats(&uugh,":")) die_nomem();
- if (!stralloc_cats(&uugh,gidstr.s)) die_nomem();
- if (!stralloc_cats(&uugh,":")) die_nomem();
- if (!stralloc_cats(&uugh,home.s)) die_nomem();
- if (!stralloc_cats(&uugh,":")) die_nomem();
-
- /* XXX: avoid recording in allusers unless sub actually needs it */
- if (!stralloc_cats(&allusers,user.s)) die_nomem();
- if (!stralloc_cats(&allusers,":")) die_nomem();
- if (!stralloc_catb(&allusers,uugh.s,uugh.len)) die_nomem();
- if (!stralloc_0(&allusers)) die_nomem();
-
- if (str_equal(user.s,auto_usera)) {
- if (substdio_puts(subfdout,"+") == -1) die_write();
- if (substdio_put(subfdout,uugh.s,uugh.len) == -1) die_write();
- if (substdio_puts(subfdout,"-::\n") == -1) die_write();
- flagalias = 1;
- }
-
- mailnames = 0;
- if (okmana)
- mailnames = constmap(&mapmana,user.s,user.len - 1);
- if (!mailnames)
- mailnames = user.s;
-
- for (;;) {
- while (*mailnames == '|') ++mailnames;
- if (!*mailnames) break;
-
- i = str_chr(mailnames,'|');
-
- if (substdio_puts(subfdout,"=") == -1) die_write();
- if (substdio_put(subfdout,mailnames,i) == -1) die_write();
- if (substdio_put(subfdout,uugh.s,uugh.len) == -1) die_write();
- if (substdio_puts(subfdout,"::\n") == -1) die_write();
-
- if (*auto_break) {
- if (substdio_puts(subfdout,"+") == -1) die_write();
- if (substdio_put(subfdout,mailnames,i) == -1) die_write();
- if (substdio_put(subfdout,auto_break,1) == -1) die_write();
- if (substdio_put(subfdout,uugh.s,uugh.len) == -1) die_write();
- if (substdio_puts(subfdout,"-::\n") == -1) die_write();
- }
-
- mailnames += i;
- }
- }
-
- stralloc sub = {0};
-
- void dosubuser()
- {
- int i;
- char *x;
- unsigned int xlen;
- char *uugh;
-
- x = line.s; xlen = line.len; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- if (!stralloc_copyb(&sub,x,i)) die_nomem();
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
- uugh = constmap(&mapuser,x,i);
- if (!uugh) die_user(x,i);
- ++i; x += i; xlen -= i; i = byte_chr(x,xlen,'|'); if (i == xlen) return;
-
- if (substdio_puts(subfdout,"=") == -1) die_write();
- if (substdio_put(subfdout,sub.s,sub.len) == -1) die_write();
- if (substdio_puts(subfdout,uugh) == -1) die_write();
- if (substdio_puts(subfdout,"-:") == -1) die_write();
- if (substdio_put(subfdout,x,i) == -1) die_write();
- if (substdio_puts(subfdout,":\n") == -1) die_write();
-
- if (*auto_break) {
- if (substdio_puts(subfdout,"+") == -1) die_write();
- if (substdio_put(subfdout,sub.s,sub.len) == -1) die_write();
- if (substdio_put(subfdout,auto_break,1) == -1) die_write();
- if (substdio_puts(subfdout,uugh) == -1) die_write();
- if (substdio_puts(subfdout,"-:") == -1) die_write();
- if (substdio_put(subfdout,x,i) == -1) die_write();
- if (substdio_puts(subfdout,"-:\n") == -1) die_write();
- }
- }
-
- int fd;
- substdio ss;
- char ssbuf[SUBSTDIO_INSIZE];
-
- void main(argc,argv)
- int argc;
- char **argv;
- {
- int opt;
- int match;
-
- while ((opt = getopt(argc,argv,"ohHuUc:C")) != opteof)
- switch(opt) {
- case 'o': homestrategy = 2; break;
- case 'h': homestrategy = 1; break;
- case 'H': homestrategy = 0; break;
- case 'u': flagnoupper = 0; break;
- case 'U': flagnoupper = 1; break;
- case 'c': *auto_break = *optarg; break;
- case 'C': *auto_break = 0; break;
- case '?':
- default:
- _exit(100);
- }
-
- if (chdir(auto_qmail) == -1) die_chdir();
-
- /* no need for control_init() */
-
- okincl = control_readfile(&incl,"users/include",0);
- if (okincl == -1) die_control();
- if (okincl) if (!constmap_init(&mapincl,incl.s,incl.len,0)) die_nomem();
-
- okexcl = control_readfile(&excl,"users/exclude",0);
- if (okexcl == -1) die_control();
- if (okexcl) if (!constmap_init(&mapexcl,excl.s,excl.len,0)) die_nomem();
-
- okmana = control_readfile(&mana,"users/mailnames",0);
- if (okmana == -1) die_control();
- if (okmana) if (!constmap_init(&mapmana,mana.s,mana.len,1)) die_nomem();
-
- if (!stralloc_copys(&allusers,"")) die_nomem();
-
- for (;;) {
- if (getln(subfdin,&line,&match,'\n') == -1) die_read();
- doaccount();
- if (!match) break;
- }
- if (!flagalias) die_alias();
-
- fd = open_read("users/subusers");
- if (fd == -1) {
- if (errno != error_noent) die_control();
- }
- else {
- substdio_fdbuf(&ss,read,fd,ssbuf,sizeof(ssbuf));
-
- if (!constmap_init(&mapuser,allusers.s,allusers.len,1)) die_nomem();
-
- for (;;) {
- if (getln(&ss,&line,&match,'\n') == -1) die_read();
- dosubuser();
- if (!match) break;
- }
-
- close(fd);
- }
-
- fd = open_read("users/append");
- if (fd == -1) {
- if (errno != error_noent) die_control();
- }
- else {
- substdio_fdbuf(&ss,read,fd,ssbuf,sizeof(ssbuf));
- for (;;) {
- if (getln(&ss,&line,&match,'\n') == -1) die_read();
- if (substdio_put(subfdout,line.s,line.len) == -1) die_write();
- if (!match) break;
- }
- }
-
- if (substdio_puts(subfdout,".\n") == -1) die_write();
- if (substdio_flush(subfdout) == -1) die_write();
- _exit(0);
- }
-