diff options
Diffstat (limited to 'rcpthosts.c')
-rw-r--r-- | rcpthosts.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/rcpthosts.c b/rcpthosts.c new file mode 100644 index 0000000..1bc3018 --- /dev/null +++ b/rcpthosts.c @@ -0,0 +1,60 @@ +#include "cdb.h" +#include "byte.h" +#include "open.h" +#include "error.h" +#include "control.h" +#include "constmap.h" +#include "stralloc.h" +#include "rcpthosts.h" + +static int flagrh = 0; +static stralloc rh = {0}; +static struct constmap maprh; +static int fdmrh; + +int rcpthosts_init() +{ + flagrh = control_readfile(&rh,"control/rcpthosts",0); + if (flagrh != 1) return flagrh; + if (!constmap_init(&maprh,rh.s,rh.len,0)) return flagrh = -1; + fdmrh = open_read("control/morercpthosts.cdb"); + if (fdmrh == -1) if (errno != error_noent) return flagrh = -1; + return 0; +} + +static stralloc host = {0}; + +int rcpthosts(buf,len) +char *buf; +int len; +{ + int j; + + if (flagrh != 1) return 1; + + j = byte_rchr(buf,len,'@'); + if (j >= len) return 1; /* presumably envnoathost is acceptable */ + + ++j; buf += j; len -= j; + + if (!stralloc_copyb(&host,buf,len)) return -1; + buf = host.s; + case_lowerb(buf,len); + + for (j = 0;j < len;++j) + if (!j || (buf[j] == '.')) + if (constmap(&maprh,buf + j,len - j)) return 1; + + if (fdmrh != -1) { + uint32 dlen; + int r; + + for (j = 0;j < len;++j) + if (!j || (buf[j] == '.')) { + r = cdb_seek(fdmrh,buf + j,len - j,&dlen); + if (r) return r; + } + } + + return 0; +} |