HP 800 HP DLPI Programmer's Guide - Page 208

case DL_TPR

Page 208 highlights

Sample Programs Connectionless Mode Example printf("error: open failed, errno = %d\n", errno); exit(1); } /* find a PPA to attach to; we assume that the first PPA on the remote is on the same media as the first local PPA */ /* send a PPA_REQ and wait for the PPA_ACK */ ppa_req->dl_primitive = DL_HP_PPA_REQ; put_ctrl(fd, sizeof(dl_hp_ppa_req_t), 0); get_msg(fd); check_ctrl(DL_HP_PPA_ACK); /* make sure we found at least one PPA */ if(ppa_ack->dl_length == 0) { printf("error: no PPAs available\n"); exit(1); } /* examine the first PPA */ ppa_info = (dl_hp_ppa_info_t *)((u_char *)ctrl_area + ppa_ack->dl_offset); ppa = ppa_info->dl_ppa; switch(ppa_info->dl_mac_type) { case DL_CSMACD: case DL_ETHER: mac_name = "Ethernet"; break; case DL_TPR: mac_name = "Token Ring"; break; case DL_FDDI: mac_name = "FDDI"; break; default: printf("error: unknown MAC type in ppa_info\n"); exit(1); } printf("attaching to %s media on PPA %d\n", mac_name, ppa); /* fill in ATTACH_REQ with the PPA we found, send the ATTACH_REQ, and wait for the OK_ACK */ attach_req->dl_primitive = DL_ATTACH_REQ; attach_req->dl_ppa = ppa; put_ctrl(fd, sizeof(dl_attach_req_t), 0); 208 Appendix A

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226

Sample Programs
Connectionless Mode Example
Appendix A
208
printf("error:
open failed, errno = %d\n", errno);
exit(1);
}
/*
find a PPA to attach to;
we assume that the first PPA on the
remote is on the same media as the first local PPA
*/
/* send a PPA_REQ and wait for the PPA_ACK */
ppa_req->dl_primitive = DL_HP_PPA_REQ;
put_ctrl(fd, sizeof(dl_hp_ppa_req_t), 0);
get_msg(fd);
check_ctrl(DL_HP_PPA_ACK);
/* make sure we found at least one PPA */
if(ppa_ack->dl_length == 0) {
printf("error:
no PPAs available\n");
exit(1);
}
/* examine the first PPA */
ppa_info = (dl_hp_ppa_info_t *)((u_char *)ctrl_area +
ppa_ack->dl_offset);
ppa = ppa_info->dl_ppa;
switch(ppa_info->dl_mac_type) {
case DL_CSMACD:
case DL_ETHER:
mac_name = "Ethernet";
break;
case DL_TPR:
mac_name = "Token Ring";
break;
case DL_FDDI:
mac_name = "FDDI";
break;
default:
printf("error:
unknown MAC type in ppa_info\n");
exit(1);
}
printf("attaching to %s media on PPA %d\n", mac_name, ppa);
/*
fill in ATTACH_REQ with the PPA we found, send the ATTACH_REQ,
and wait for the OK_ACK
*/
attach_req->dl_primitive = DL_ATTACH_REQ;
attach_req->dl_ppa = ppa;
put_ctrl(fd, sizeof(dl_attach_req_t), 0);