2 * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers.
4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
8 * By using this file, you agree to the terms and conditions set
9 * forth in the LICENSE file which can be found at the top level of
10 * the sendmail distribution.
16 SM_RCSID("@(#)$Id: stats.c,v 8.57 2006/08/15 23:24:58 ca Exp $")
18 #include <sendmail/mailstats.h>
20 static struct statistics Stat;
22 static bool GotStats = false; /* set when we have stats to merge */
24 /* See http://physics.nist.gov/cuu/Units/binary.html */
25 #define ONE_K 1000 /* one thousand (twenty-four?) */
26 #define KBYTES(x) (((x) + (ONE_K - 1)) / ONE_K)
28 ** MARKSTATS -- mark statistics
33 ** type -- type of stats this represents.
39 ** changes static Stat structure
43 markstats(e, to, type)
50 case STATS_QUARANTINE:
51 if (e->e_from.q_mailer != NULL)
52 Stat.stat_nq[e->e_from.q_mailer->m_mno]++;
56 if (e->e_from.q_mailer != NULL)
58 if (bitset(EF_DISCARD, e->e_flags))
59 Stat.stat_nd[e->e_from.q_mailer->m_mno]++;
61 Stat.stat_nr[e->e_from.q_mailer->m_mno]++;
76 if (e->e_from.q_mailer != NULL)
78 Stat.stat_nf[e->e_from.q_mailer->m_mno]++;
79 Stat.stat_bf[e->e_from.q_mailer->m_mno] +=
85 Stat.stat_nt[to->q_mailer->m_mno]++;
86 Stat.stat_bt[to->q_mailer->m_mno] += KBYTES(e->e_msgsize);
91 /* Silently ignore bogus call */
99 ** CLEARSTATS -- clear statistics structure
108 ** clears the Stat structure.
114 /* clear the structure to avoid future disappointment */
115 memset(&Stat, '\0', sizeof(Stat));
119 ** POSTSTATS -- post statistics in the statistics file
122 ** sfile -- the name of the statistics file.
128 ** merges the Stat structure with the sfile file.
136 static bool entered = false;
137 long sff = SFF_REGONLY|SFF_OPENASROOT;
138 struct statistics stats;
139 extern off_t lseek();
141 if (sfile == NULL || *sfile == '\0' || !GotStats || entered)
145 (void) time(&Stat.stat_itime);
146 Stat.stat_size = sizeof(Stat);
147 Stat.stat_magic = STAT_MAGIC;
148 Stat.stat_version = STAT_VERSION;
150 if (!bitnset(DBS_WRITESTATSTOSYMLINK, DontBlameSendmail))
152 if (!bitnset(DBS_WRITESTATSTOHARDLINK, DontBlameSendmail))
155 fd = safeopen(sfile, O_RDWR, 0600, sff);
159 sm_syslog(LOG_INFO, NOQID, "poststats: %s: %s",
160 sfile, sm_errstring(errno));
165 if (read(fd, (char *) &stats, sizeof(stats)) == sizeof(stats) &&
166 stats.stat_size == sizeof(stats) &&
167 stats.stat_magic == Stat.stat_magic &&
168 stats.stat_version == Stat.stat_version)
170 /* merge current statistics into statfile */
173 for (i = 0; i < MAXMAILERS; i++)
175 stats.stat_nf[i] += Stat.stat_nf[i];
176 stats.stat_bf[i] += Stat.stat_bf[i];
177 stats.stat_nt[i] += Stat.stat_nt[i];
178 stats.stat_bt[i] += Stat.stat_bt[i];
179 stats.stat_nr[i] += Stat.stat_nr[i];
180 stats.stat_nd[i] += Stat.stat_nd[i];
181 stats.stat_nq[i] += Stat.stat_nq[i];
183 stats.stat_cr += Stat.stat_cr;
184 stats.stat_ct += Stat.stat_ct;
185 stats.stat_cf += Stat.stat_cf;
188 memmove((char *) &stats, (char *) &Stat, sizeof(stats));
190 /* write out results */
191 (void) lseek(fd, (off_t) 0, 0);
192 (void) write(fd, (char *) &stats, sizeof(stats));
195 /* clear the structure to avoid future disappointment */