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1.1 root 1: /* status.c
2: Routines to get and set the status for a system.
3:
4: Copyright (C) 1991, 1992 Ian Lance Taylor
5:
6: This file is part of the Taylor UUCP package.
7:
8: This program is free software; you can redistribute it and/or
9: modify it under the terms of the GNU General Public License as
10: published by the Free Software Foundation; either version 2 of the
11: License, or (at your option) any later version.
12:
13: This program is distributed in the hope that it will be useful, but
14: WITHOUT ANY WARRANTY; without even the implied warranty of
15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16: General Public License for more details.
17:
18: You should have received a copy of the GNU General Public License
19: along with this program; if not, write to the Free Software
20: Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21:
22: The author of the program may be contacted at [email protected] or
23: c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
24: */
25:
26: #include "uucp.h"
27:
28: #include "uudefs.h"
29: #include "uuconf.h"
30: #include "sysdep.h"
31: #include "system.h"
32:
33: #include <errno.h>
34:
35: #if SPOOLDIR_HDB || SPOOLDIR_SVR4
36:
37: /* If we are using HDB spool layout, store status using HDB status
38: values. SVR4 is a variant of HDB. */
39:
40: #define MAP_STATUS 1
41:
42: static const int aiMapstatus[] =
43: {
44: 0, 13, 7, 6, 4, 20, 3, 2
45: };
46: #define CMAPENTRIES (sizeof (aiMapstatus) / sizeof (aiMapstatus[0]))
47:
48: #else /* ! SPOOLDIR_HDB && ! SPOOLDIR_SVR4 */
49:
50: #define MAP_STATUS 0
51:
52: #endif /* ! SPOOLDIR_HDB && ! SPOOLDIR_SVR4 */
53:
54: /* Get the status of a system. This assumes that we are in the spool
55: directory. */
56:
57: boolean
58: fsysdep_get_status (qsys, qret, pfnone)
59: const struct uuconf_system *qsys;
60: struct sstatus *qret;
61: boolean *pfnone;
62: {
63: char *zname;
64: FILE *e;
65: char *zline;
66: char *zend, *znext;
67: boolean fbad;
68: int istat;
69:
70: if (pfnone != NULL)
71: *pfnone = FALSE;
72:
73: zname = zsysdep_in_dir (".Status", qsys->uuconf_zname);
74: e = fopen (zname, "r");
75: if (e == NULL)
76: {
77: if (errno != ENOENT)
78: {
79: ulog (LOG_ERROR, "fopen (%s): %s", zname, strerror (errno));
80: ubuffree (zname);
81: return FALSE;
82: }
83: zline = NULL;
84: }
85: else
86: {
87: size_t cline;
88:
89: zline = NULL;
90: cline = 0;
91: if (getline (&zline, &cline, e) <= 0)
92: {
93: xfree ((pointer) zline);
94: zline = NULL;
95: }
96: (void) fclose (e);
97: }
98:
99: if (zline == NULL)
100: {
101: /* There is either no status file for this system, or it's been
102: truncated, so fake a good status. */
103: qret->ttype = STATUS_COMPLETE;
104: qret->cretries = 0;
105: qret->ilast = 0;
106: qret->cwait = 0;
107: if (pfnone != NULL)
108: *pfnone = TRUE;
109: ubuffree (zname);
110: return TRUE;
111: }
112:
113: /* It turns out that scanf is not used much in this program, so for
114: the benefit of small computers we avoid linking it in. This is
115: basically
116:
117: sscanf (zline, "%d %d %ld %d", &qret->ttype, &qret->cretries,
118: &qret->ilast, &qret->cwait);
119:
120: except that it's done with strtol. */
121:
122: fbad = FALSE;
123: istat = (int) strtol (zline, &zend, 10);
124: if (zend == zline)
125: fbad = TRUE;
126:
127: #if MAP_STATUS
128: /* On some systems it may be appropriate to map system dependent status
129: values on to our status values. */
130: {
131: int i;
132:
133: for (i = 0; i < CMAPENTRIES; ++i)
134: {
135: if (aiMapstatus[i] == istat)
136: {
137: istat = i;
138: break;
139: }
140: }
141: }
142: #endif /* MAP_STATUS */
143:
144: if (istat < 0 || istat >= (int) STATUS_VALUES)
145: istat = (int) STATUS_COMPLETE;
146: qret->ttype = (enum tstatus_type) istat;
147: znext = zend;
148: qret->cretries = (int) strtol (znext, &zend, 10);
149: if (zend == znext)
150: fbad = TRUE;
151: znext = zend;
152: qret->ilast = strtol (znext, &zend, 10);
153: if (zend == znext)
154: fbad = TRUE;
155: znext = zend;
156: qret->cwait = (int) strtol (znext, &zend, 10);
157: if (zend == znext)
158: fbad = TRUE;
159:
160: xfree ((pointer) zline);
161:
162: if (fbad)
163: {
164: ulog (LOG_ERROR, "%s: Bad status file format", zname);
165: ubuffree (zname);
166: return FALSE;
167: }
168:
169: ubuffree (zname);
170:
171: return TRUE;
172: }
173:
174: /* Set the status of a remote system. This assumes the system is
175: locked when this is called, and that the program is in the spool
176: directory. */
177:
178: boolean
179: fsysdep_set_status (qsys, qset)
180: const struct uuconf_system *qsys;
181: const struct sstatus *qset;
182: {
183: char *zname;
184: FILE *e;
185: int istat;
186:
187: zname = zsysdep_in_dir (".Status", qsys->uuconf_zname);
188:
189: e = esysdep_fopen (zname, TRUE, FALSE, TRUE);
190: ubuffree (zname);
191: if (e == NULL)
192: return FALSE;
193: istat = (int) qset->ttype;
194:
195: #if MAP_STATUS
196: /* On some systems it may be appropriate to map istat onto a system
197: dependent number. */
198: if (istat >= 0 && istat < CMAPENTRIES)
199: istat = aiMapstatus[istat];
200: #endif /* MAP_STATUS */
201:
202: fprintf (e, "%d %d %ld %d %s %s\n", istat, qset->cretries,
203: qset->ilast, qset->cwait, azStatus[(int) qset->ttype],
204: qsys->uuconf_zname);
205: if (fclose (e) != 0)
206: {
207: ulog (LOG_ERROR, "fclose: %s", strerror (errno));
208: return FALSE;
209: }
210:
211: return TRUE;
212: }
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