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1.1 root 1: /* psaprelease1.c - PPM: initiate release */
2:
3: #ifndef lint
4: static char *rcsid = "$Header: /f/osi/psap2/RCS/psaprelease1.c,v 7.0 89/11/23 22:14:26 mrose Rel $";
5: #endif
6:
7: /*
8: * $Header: /f/osi/psap2/RCS/psaprelease1.c,v 7.0 89/11/23 22:14:26 mrose Rel $
9: *
10: *
11: * $Log: psaprelease1.c,v $
12: * Revision 7.0 89/11/23 22:14:26 mrose
13: * Release 6.0
14: *
15: */
16:
17: /*
18: * NOTICE
19: *
20: * Acquisition, use, and distribution of this module and related
21: * materials are subject to the restrictions of a license agreement.
22: * Consult the Preface in the User's Manual for the full terms of
23: * this agreement.
24: *
25: */
26:
27:
28: /* LINTLIBRARY */
29:
30: #include <stdio.h>
31: #include <signal.h>
32: #include "ppkt.h"
33:
34: /* P-RELEASE.REQUEST */
35:
36: int PRelRequest (sd, data, ndata, secs, pr, pi)
37: int sd;
38: PE *data;
39: int ndata;
40: int secs;
41: struct PSAPrelease *pr;
42: struct PSAPindication *pi;
43: {
44: SBV smask;
45: int result;
46: register struct psapblk *pb;
47:
48: toomuchP (data, ndata, NPDATA, "release");
49: missingP (pr);
50: missingP (pi);
51:
52: smask = sigioblock ();
53:
54: psapPsig (pb, sd);
55:
56: switch (result = info2ssdu (pb, pi, data, ndata, &pb -> pb_realbase,
57: &pb -> pb_retry, &pb -> pb_len,
58: "P-RELEASE user-data", PPDU_NONE)) {
59: case OK:
60: default:
61: result = PRelRetryRequestAux (pb, secs, pr, pi);
62: goto out;
63:
64: case NOTOK:
65: freepblk (pb), pb = NULLPB;
66: break;
67:
68: case DONE:
69: result = NOTOK;
70: break;
71: }
72:
73: if (pb) {
74: if (pb -> pb_realbase)
75: free (pb -> pb_realbase);
76: else
77: if (pb -> pb_retry)
78: free (pb -> pb_retry);
79: pb -> pb_realbase = pb -> pb_retry = NULL;
80: }
81:
82: out: ;
83: (void) sigiomask (smask);
84:
85: return result;
86: }
87:
88: /* P-RELEASE-RETRY.REQUEST (pseudo) */
89:
90: int PRelRetryRequest (sd, secs, pr, pi)
91: int sd;
92: int secs;
93: struct PSAPrelease *pr;
94: struct PSAPindication *pi;
95: {
96: SBV smask;
97: int result;
98: register struct psapblk *pb;
99:
100: missingP (pr);
101: missingP (pi);
102:
103: smask = sigioblock ();
104:
105: if ((pb = findpblk (sd)) == NULL)
106: result = psaplose (pi, PC_PARAMETER, NULLCP,
107: "invalid session descriptor");
108: else
109: if (!(pb -> pb_flags & PB_RELEASE))
110: result = psaplose (pi, PC_OPERATION, "release not in progress");
111: else
112: result = PRelRetryRequestAux (pb, secs, pr, pi);
113:
114: (void) sigiomask (smask);
115:
116: return result;
117: }
118:
119: /* */
120:
121: static int PRelRetryRequestAux (pb, secs, pr, pi)
122: struct psapblk *pb;
123: int secs;
124: struct PSAPrelease *pr;
125: struct PSAPindication *pi;
126: {
127: int result;
128: char *id = pb -> pb_flags & PB_RELEASE ? "SRelRetryRequest"
129: : "SRelRequest";
130: struct SSAPrelease srs;
131: register struct SSAPrelease *sr = &srs;
132: struct SSAPindication sis;
133: register struct SSAPabort *sa = &sis.si_abort;
134:
135: bzero ((char *) sr, sizeof *sr);
136:
137: if ((result = (pb -> pb_flags & PB_RELEASE)
138: ? SRelRetryRequest (pb -> pb_fd, secs, sr, &sis)
139: : SRelRequest (pb -> pb_fd, pb -> pb_retry,
140: pb -> pb_len, secs, sr, &sis))
141: == NOTOK) {
142: if (sa -> sa_reason == SC_TIMER) {
143: pb -> pb_flags |= PB_RELEASE;
144:
145: return ss2pslose (NULLPB, pi, id, sa);
146: }
147:
148: if (sa -> sa_peer) {
149: (void) ss2psabort (pb, sa, pi);
150: goto out1;
151: }
152: if (SC_FATAL (sa -> sa_reason)) {
153: (void) ss2pslose (pb, pi, id, sa);
154: goto out2;
155: }
156: else {
157: (void) ss2pslose (NULLPB, pi, id, sa);
158: goto out1;
159: }
160: }
161:
162: bzero ((char *) pr, sizeof *pr);
163:
164: if ((result = ssdu2info (pb, pi, sr -> sr_data, sr -> sr_cc, pr -> pr_info,
165: &pr -> pr_ninfo, "P-RELEASE user-data", PPDU_NONE)) == NOTOK)
166: goto out2;
167:
168: if (pr -> pr_affirmative = sr -> sr_affirmative) {
169: pb -> pb_fd = NOTOK;
170: result = OK;
171: }
172: else
173: result = DONE;
174:
175: out2: ;
176: if (result == DONE)
177: result = OK;
178: else
179: freepblk (pb), pb = NULLPB;
180: out1: ;
181: SRFREE (sr);
182: if (pb) {
183: if (pb -> pb_realbase)
184: free (pb -> pb_realbase);
185: else
186: if (pb -> pb_retry)
187: free (pb -> pb_retry);
188: pb -> pb_realbase = pb -> pb_retry = NULL;
189: }
190:
191: return result;
192: }
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