22 lines
448 B
C
22 lines
448 B
C
#include "internal/icmp_send.h"
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <errno.h>
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#include <string.h>
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int
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send_set_socket_ttl(struct icmp_handle *h, uint8_t ttl)
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{
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int ttl_val = ttl;
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int saved_errno;
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if (setsockopt(h->fd, IPPROTO_IP, IP_TTL, &ttl_val, sizeof(ttl_val)) < 0)
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{
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saved_errno = errno;
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icmp_set_error_fmt(h, ICMP_ERR_SOCKET, "Failed to set TTL: %s",
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strerror(saved_errno));
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return -1;
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}
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return 0;
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}
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