HP 800 HP DLPI Programmer's Guide - Page 187

operation = SET_MTU

Get HP 800 PDF manuals and user guides View all HP 800 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 187 highlights

Sample Programs ioctl Example dl_attach_req_tdl_attach_req; /* Do validations on the parameters that are are passed by the user. */ if (argc < 3) { printf("USAGE: %s [get_mtu | set_mtu ] PPA \n", argv[0]); exit(1); } if (!strcmp("set_mtu", argv[1])) { if(argc != 4) { printf("USAGE: %s [get_mtu | set_mtu ] PPA \n", argv[0]); exit(1); } else { set_mtu_value = atoi(argv[2]); ppa = atoi(argv[3]); } operation = SET_MTU; } else if (!strcmp("get_mtu", argv[1])) { ppa = atoi(argv[2]); operation = GET_MTU; } /* Open the DLPI device file */ if((fd = open("/dev/dlpi", O_RDWR)) == -1) { printf("error:open failed, errno = %d\n", errno); exit(1); } /* Attach to the PPA */ dl_attach_req.dl_primitive = DL_ATTACH_REQ; dl_attach_req.dl_ppa = ppa; ctlbuf.len = sizeof (dl_attach_req); ctlbuf.buf = (char *) &dl_attach_req; flags = RS_HIPRI; printf("Sending a DL_ATTACH_REQ primitive\n"); if (putmsg(fd, &ctlbuf, (struct strbuf*) NULL, flags) < 0) perror("main: putmsg"); ctlbuf.buf = buf_ctl; ctlbuf.maxlen = 1000; /* Get the acknowledgement */ Appendix A 187

  • 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
ioctl Example
Appendix A
187
dl_attach_req_tdl_attach_req;
/*
Do validations on the parameters that are are passed
by the user.
*/
if (argc < 3) {
printf("USAGE: %s [get_mtu | set_mtu <MTU> ] PPA \n", argv[0]);
exit(1);
}
if (!strcmp("set_mtu", argv[1])) {
if(argc != 4) {
printf("USAGE: %s [get_mtu | set_mtu <MTU> ] PPA \n", argv[0]);
exit(1);
} else {
set_mtu_value = atoi(argv[2]);
ppa = atoi(argv[3]);
}
operation = SET_MTU;
} else if (!strcmp("get_mtu", argv[1])) {
ppa = atoi(argv[2]);
operation = GET_MTU;
}
/* Open the DLPI device file */
if((fd = open("/dev/dlpi", O_RDWR)) == -1) {
printf("error:open failed, errno = %d\n", errno);
exit(1);
}
/* Attach to the PPA */
dl_attach_req.dl_primitive = DL_ATTACH_REQ;
dl_attach_req.dl_ppa = ppa;
ctlbuf.len = sizeof (dl_attach_req);
ctlbuf.buf = (char *) &dl_attach_req;
flags = RS_HIPRI;
printf("Sending a DL_ATTACH_REQ primitive\n");
if (putmsg(fd, &ctlbuf, (struct strbuf*) NULL, flags) < 0)
perror("main:
putmsg");
ctlbuf.buf = buf_ctl;
ctlbuf.maxlen = 1000;
/* Get the acknowledgement */