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57 lines
2.2 KiB
57 lines
2.2 KiB
3 years ago
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diff -up tcp_wrappers_7.6/hosts_access.5.patch5 tcp_wrappers_7.6/hosts_access.5
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--- tcp_wrappers_7.6/hosts_access.5.patch5 1995-01-30 19:51:47.000000000 +0100
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+++ tcp_wrappers_7.6/hosts_access.5 2008-08-29 09:45:12.000000000 +0200
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@@ -89,6 +89,13 @@ An expression of the form `n.n.n.n/m.m.m
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bitwise AND of the address and the `mask\'. For example, the net/mask
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pattern `131.155.72.0/255.255.254.0\' matches every address in the
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range `131.155.72.0\' through `131.155.73.255\'.
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+.IP \(bu
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+A string that begins with a `/\' character is treated as a file
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+name. A host name or address is matched if it matches any host name
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+or address pattern listed in the named file. The file format is
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+zero or more lines with zero or more host name or address patterns
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+separated by whitespace. A file name pattern can be used anywhere
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+a host name or address pattern can be used.
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.SH WILDCARDS
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The access control language supports explicit wildcards:
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.IP ALL
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diff -up tcp_wrappers_7.6/hosts_access.c.patch5 tcp_wrappers_7.6/hosts_access.c
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--- tcp_wrappers_7.6/hosts_access.c.patch5 1997-02-12 02:13:23.000000000 +0100
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+++ tcp_wrappers_7.6/hosts_access.c 2008-08-29 09:45:12.000000000 +0200
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@@ -240,6 +240,26 @@ struct request_info *request;
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}
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}
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+/* hostfile_match - look up host patterns from file */
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+
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+static int hostfile_match(path, host)
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+char *path;
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+struct hosts_info *host;
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+{
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+ char tok[BUFSIZ];
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+ int match = NO;
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+ FILE *fp;
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+
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+ if ((fp = fopen(path, "r")) != 0) {
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+ while (fscanf(fp, "%s", tok) == 1 && !(match = host_match(tok, host)))
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+ /* void */ ;
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+ fclose(fp);
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+ } else if (errno != ENOENT) {
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+ tcpd_warn("open %s: %m", path);
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+ }
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+ return (match);
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+}
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+
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/* host_match - match host name and/or address against pattern */
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static int host_match(tok, host)
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@@ -267,6 +287,8 @@ struct host_info *host;
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tcpd_warn("netgroup support is disabled"); /* not tcpd_jump() */
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return (NO);
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#endif
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+ } else if (tok[0] == '/') { /* /file hack */
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+ return (hostfile_match(tok, host));
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} else if (STR_EQ(tok, "KNOWN")) { /* check address and name */
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char *name = eval_hostname(host);
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return (STR_NE(eval_hostaddr(host), unknown) && HOSTNAME_KNOWN(name));
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