60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
#include "cdb.h"
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#include "byte.h"
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#include "open.h"
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#include "error.h"
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#include "control.h"
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#include "constmap.h"
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#include "stralloc.h"
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#include "rcpthosts.h"
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static int flagrh = 0;
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static stralloc rh = {0};
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static struct constmap maprh;
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static int fdmrh;
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int rcpthosts_init()
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{
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flagrh = control_readfile(&rh,"control/rcpthosts",0);
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if (flagrh != 1) return flagrh;
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if (!constmap_init(&maprh,rh.s,rh.len,0)) return flagrh = -1;
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fdmrh = open_read("control/morercpthosts.cdb");
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if (fdmrh == -1) if (errno != error_noent) return flagrh = -1;
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return 0;
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}
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static stralloc host = {0};
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int rcpthosts(buf,len)
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char *buf;
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int len;
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{
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int j;
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if (flagrh != 1) return 1;
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j = byte_rchr(buf,len,'@');
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if (j >= len) return 1; /* presumably envnoathost is acceptable */
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++j; buf += j; len -= j;
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if (!stralloc_copyb(&host,buf,len)) return -1;
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buf = host.s;
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case_lowerb(buf,len);
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for (j = 0;j < len;++j)
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if (!j || (buf[j] == '.'))
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if (constmap(&maprh,buf + j,len - j)) return 1;
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if (fdmrh != -1) {
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uint32 dlen;
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int r;
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for (j = 0;j < len;++j)
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if (!j || (buf[j] == '.')) {
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r = cdb_seek(fdmrh,buf + j,len - j,&dlen);
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if (r) return r;
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}
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}
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return 0;
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}
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