52 lines
957 B
C
52 lines
957 B
C
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/* portnm.c
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Get the port name of stdin. */
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#include "uucp.h"
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#include "sysdep.h"
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#include "system.h"
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#if HAVE_TCP
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#if HAVE_SYS_TYPES_TCP_H
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#include <sys/types.tcp.h>
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#endif
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#include <sys/socket.h>
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#endif
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#ifndef ttyname
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extern char *ttyname ();
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#endif
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/* Get the port name of standard input. I assume that Unix systems
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generally support ttyname. If they don't, this function can just
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return NULL. It uses getsockname to see whether standard input is
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a TCP connection. */
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const char *
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zsysdep_port_name (ftcp_port)
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boolean *ftcp_port;
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{
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const char *z;
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*ftcp_port = FALSE;
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#if HAVE_TCP
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{
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size_t clen;
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struct sockaddr s;
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clen = sizeof (struct sockaddr);
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if (getsockname (0, &s, &clen) == 0)
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*ftcp_port = TRUE;
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}
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#endif /* HAVE_TCP */
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z = ttyname (0);
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if (z == NULL)
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return NULL;
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if (strncmp (z, "/dev/", sizeof "/dev/" - 1) == 0)
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return z + sizeof "/dev/" - 1;
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else
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return z;
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}
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