X-Git-Url: https://git.distorted.org.uk/~mdw/ezmlm/blobdiff_plain/5b62e993b0af39700031c2875d7f6654e6a02850..f8beb284087c279acfb30506f5bb32baa4949b44:/subscribe.c

diff --git a/subscribe.c b/subscribe.c
deleted file mode 100644
index fee21e2..0000000
--- a/subscribe.c
+++ /dev/null
@@ -1,127 +0,0 @@
-#include "stralloc.h"
-#include "getln.h"
-#include "readwrite.h"
-#include "substdio.h"
-#include "strerr.h"
-#include "open.h"
-#include "byte.h"
-#include "case.h"
-#include "lock.h"
-#include "error.h"
-#include "uint32.h"
-#include "subscribe.h"
-
-static stralloc addr = {0};
-static stralloc line = {0};
-static stralloc fnnew = {0};
-static stralloc fn = {0};
-
-static int fd;
-static substdio ss;
-static char ssbuf[256];
-static int fdnew;
-static substdio ssnew;
-static char ssnewbuf[256];
-
-static int doit(userhost,flagadd)
-char *userhost;
-int flagadd;
-{
-  int j;
-  uint32 h;
-  char ch;
-  int match;
-  int flagwasthere;
-
-  if (userhost[str_chr(userhost,'\n')]) return -8;
-  if (!stralloc_copys(&addr,"T")) return -2;
-  if (!stralloc_cats(&addr,userhost)) return -2;
-  if (addr.len > 401) return -7;
-
-  j = byte_rchr(addr.s,addr.len,'@');
-  if (j == addr.len) return -6;
-  case_lowerb(addr.s + j + 1,addr.len - j - 1);
-
-  h = 5381;
-  for (j = 0;j < addr.len;++j)
-    h = (h + (h << 5)) ^ (uint32) (unsigned char) addr.s[j];
-  ch = 64 + (h % 53);
-
-  if (!stralloc_0(&addr)) return -2;
-
-  if (!stralloc_copys(&fn,"subscribers/")) return -2;
-  if (!stralloc_catb(&fn,&ch,1)) return -2;
-  if (!stralloc_copy(&fnnew,&fn)) return -2;
-  if (!stralloc_cats(&fnnew,"n")) return -2;
-  if (!stralloc_0(&fnnew)) return -2;
-  if (!stralloc_0(&fn)) return -2;
-
-  fdnew = open_trunc(fnnew.s);
-  if (fdnew == -1) return -4;
-  substdio_fdbuf(&ssnew,write,fdnew,ssnewbuf,sizeof(ssnewbuf));
-
-  flagwasthere = 0;
-
-  fd = open_read(fn.s);
-  if (fd == -1) {
-    if (errno != error_noent) { close(fdnew); return -3; }
-  }
-  else {
-    substdio_fdbuf(&ss,read,fd,ssbuf,sizeof(ssbuf));
-
-    for (;;) {
-      if (getln(&ss,&line,&match,'\0') == -1) { close(fd); close(fdnew); return -3; }
-      if (!match) break;
-      if (line.len == addr.len)
-        if (!byte_diff(line.s,line.len,addr.s)) {
-	  flagwasthere = 1;
-	  if (!flagadd)
-	    continue;
-	}
-      if (substdio_bput(&ssnew,line.s,line.len) == -1) { close(fd); close(fdnew); return -4; }
-    }
-
-    close(fd);
-  }
-
-  if (flagadd && !flagwasthere)
-    if (substdio_bput(&ssnew,addr.s,addr.len) == -1) { close(fdnew); return -4; }
-
-  if (substdio_flush(&ssnew) == -1) { close(fdnew); return -4; }
-  if (fsync(fdnew) == -1) { close(fdnew); return -4; }
-  close(fdnew);
-
-  if (rename(fnnew.s,fn.s) == -1) return -5;
-  return flagadd ^ flagwasthere;
-}
-
-struct strerr subscribe_err;
-
-int subscribe(userhost,flagadd)
-char *userhost;
-int flagadd;
-{
-  int fdlock;
-  int r;
-
-  fdlock = open_append("lock");
-  if (fdlock == -1)
-    STRERR_SYS(-1,subscribe_err,"unable to open lock: ")
-  if (lock_ex(fdlock) == -1) {
-    close(fdlock);
-    STRERR_SYS(-1,subscribe_err,"unable to obtain lock: ")
-  }
-
-  r = doit(userhost,flagadd);
-  close(fdlock);
-
-  if (r == -2) STRERR(-1,subscribe_err,"out of memory")
-  if (r == -3) STRERR_SYS3(-1,subscribe_err,"unable to read ",fn.s,": ")
-  if (r == -4) STRERR_SYS3(-1,subscribe_err,"unable to write ",fnnew.s,": ")
-  if (r == -5) STRERR_SYS3(-1,subscribe_err,"unable to move temporary file to ",fn.s,": ")
-  if (r == -6) STRERR(-2,subscribe_err,"address does not contain @")
-  if (r == -7) STRERR(-2,subscribe_err,"address is too long")
-  if (r == -8) STRERR(-2,subscribe_err,"address contains newline")
-
-  return r;
-}
diff --git a/subscribe.c b/subscribe.c
new file mode 120000
index 0000000..1c16bae
--- /dev/null
+++ b/subscribe.c
@@ -0,0 +1 @@
+sub_std/subscribe.c
\ No newline at end of file