45 lines
809 B
C
45 lines
809 B
C
#include "ipf.h"
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int getport(fr, name, port)
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frentry_t *fr;
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char *name;
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u_short *port;
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{
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struct protoent *p;
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struct servent *s;
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u_short p1;
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if (fr == NULL || fr->fr_type != FR_T_IPF) {
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s = getservbyname(name, NULL);
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if (s != NULL) {
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*port = s->s_port;
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return 0;
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}
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return -1;
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}
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if ((fr->fr_flx & FI_TCPUDP) != 0) {
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/*
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* If a rule is "tcp/udp" then check that both TCP and UDP
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* mappings for this protocol name match ports.
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*/
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s = getservbyname(name, "tcp");
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if (s == NULL)
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return -1;
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p1 = s->s_port;
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s = getservbyname(name, "udp");
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if (s == NULL || s->s_port != p1)
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return -1;
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*port = p1;
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return 0;
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}
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p = getprotobynumber(fr->fr_proto);
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s = getservbyname(name, p ? p->p_name : NULL);
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if (s != NULL) {
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*port = s->s_port;
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return 0;
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}
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return -1;
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}
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