projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a0be6343 WJ |
1 | /* ssapexpd.c - SPM: write expedited data */ |
| 2 | ||
| 3 | #ifndef lint | |
| 4 | static char *rcsid = "$Header: /f/osi/ssap/RCS/ssapexpd.c,v 7.1 91/02/22 09:45:47 mrose Interim $"; | |
| 5 | #endif | |
| 6 | ||
| 7 | /* | |
| 8 | * $Header: /f/osi/ssap/RCS/ssapexpd.c,v 7.1 91/02/22 09:45:47 mrose Interim $ | |
| 9 | * | |
| 10 | * | |
| 11 | * $Log: ssapexpd.c,v $ | |
| 12 | * Revision 7.1 91/02/22 09:45:47 mrose | |
| 13 | * Interim 6.8 | |
| 14 | * | |
| 15 | * Revision 7.0 89/11/23 22:25:27 mrose | |
| 16 | * Release 6.0 | |
| 17 | * | |
| 18 | */ | |
| 19 | ||
| 20 | /* | |
| 21 | * NOTICE | |
| 22 | * | |
| 23 | * Acquisition, use, and distribution of this module and related | |
| 24 | * materials are subject to the restrictions of a license agreement. | |
| 25 | * Consult the Preface in the User's Manual for the full terms of | |
| 26 | * this agreement. | |
| 27 | * | |
| 28 | */ | |
| 29 | ||
| 30 | ||
| 31 | /* LINTLIBRARY */ | |
| 32 | ||
| 33 | #include <stdio.h> | |
| 34 | #include <signal.h> | |
| 35 | #include "spkt.h" | |
| 36 | ||
| 37 | /* \f S-EXPEDITED-DATA.REQUEST */ | |
| 38 | ||
| 39 | int SExpdRequest (sd, data, cc, si) | |
| 40 | int sd; | |
| 41 | char *data; | |
| 42 | int cc; | |
| 43 | struct SSAPindication *si; | |
| 44 | { | |
| 45 | SBV smask; | |
| 46 | int result; | |
| 47 | register struct ssapblk *sb; | |
| 48 | ||
| 49 | missingP (data); | |
| 50 | if (cc > SX_EXSIZE) | |
| 51 | return ssaplose (si, SC_PARAMETER, NULLCP, | |
| 52 | "too much expedited user data, %d octets", cc); | |
| 53 | missingP (si); | |
| 54 | ||
| 55 | smask = sigioblock (); | |
| 56 | ||
| 57 | ssapPsig (sb, sd); | |
| 58 | ||
| 59 | result = SExpdRequestAux (sb, data, cc, si); | |
| 60 | ||
| 61 | (void) sigiomask (smask); | |
| 62 | ||
| 63 | return result; | |
| 64 | } | |
| 65 | ||
| 66 | /* \f */ | |
| 67 | ||
| 68 | static int SExpdRequestAux (sb, data, cc, si) | |
| 69 | register struct ssapblk *sb; | |
| 70 | char *data; | |
| 71 | int cc; | |
| 72 | struct SSAPindication *si; | |
| 73 | { | |
| 74 | int result; | |
| 75 | register struct ssapkt *s; | |
| 76 | ||
| 77 | if (!(sb -> sb_requirements & SR_EXPEDITED)) | |
| 78 | return ssaplose (si, SC_OPERATION, NULLCP, | |
| 79 | "expedited data service unavailable"); | |
| 80 | ||
| 81 | if ((s = newspkt (SPDU_EX)) == NULL) | |
| 82 | return ssaplose (si, SC_CONGEST, NULLCP, "out of memory"); | |
| 83 | ||
| 84 | s -> s_udata = data, s -> s_ulen = cc; | |
| 85 | result = spkt2sd (s, sb -> sb_fd, 1, si); | |
| 86 | s -> s_udata = NULL, s -> s_ulen = 0; | |
| 87 | ||
| 88 | freespkt (s); | |
| 89 | ||
| 90 | if (result == NOTOK) | |
| 91 | freesblk (sb); | |
| 92 | ||
| 93 | return result; | |
| 94 | } |