Add the ability to Bzip2 your logs.
PR: 27901 Submitted by: Anders Nordby <anders@fix.no> (stylistic changes by me)
This commit is contained in:
David E. O'Brien
parent
4c05509cd0
commit
e12f0d2fac
@ -271,6 +271,11 @@ flag will make the archive files compress to save space by
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using
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.Xr gzip 1 .
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The
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.Ar J
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flag will make the archive files compress to save space by
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using
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.Xr bzip2 1 .
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The
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.Ar B
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flag means that the file is a binary file, and so the
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.Tn ASCII
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@ -32,6 +32,9 @@ static const char rcsid[] =
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#ifndef COMPRESS_POSTFIX
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#define COMPRESS_POSTFIX ".gz"
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#endif
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#ifndef BZCOMPRESS_POSTFIX
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#define BZCOMPRESS_POSTFIX ".bz2"
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#endif
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#include <ctype.h>
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#include <err.h>
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@ -61,6 +64,7 @@ static const char rcsid[] =
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#define CE_COMPACT 1 /* Compact the achived log files */
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#define CE_BINARY 2 /* Logfile is in binary, don't add */
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#define CE_BZCOMPACT 8 /* Compact the achived log files with bzip2 */
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/* status messages */
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#define CE_TRIMAT 4 /* trim at a specific time */
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@ -76,7 +80,7 @@ struct conf_entry {
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int hours; /* Hours between log trimming */
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time_t trim_at; /* Specific time to do trimming */
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int permissions; /* File permissions on the log */
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int flags; /* Flags (CE_COMPACT & CE_BINARY) */
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int flags; /* Flags (CE_COMPACT & CE_BZCOMPACT & CE_BINARY) */
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int sig; /* Signal to send */
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struct conf_entry *next;/* Linked list pointer */
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};
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@ -105,6 +109,7 @@ static void usage();
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static void dotrim(char *log, char *pid_file, int numdays, int falgs, int perm, int owner_uid, int group_gid, int sig);
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static int log_trim(char *log);
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static void compress_log(char *log);
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static void bzcompress_log(char *log);
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static int sizefile(char *file);
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static int age_old_log(char *file);
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static pid_t get_pid(char *pid_file);
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@ -141,6 +146,8 @@ do_entry(struct conf_entry * ent)
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if (verbose) {
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if (ent->flags & CE_COMPACT)
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printf("%s <%dZ>: ", ent->log, ent->numlogs);
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else if (ent->flags & CE_BZCOMPACT)
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printf("%s <%dJ>: ", ent->log, ent->numlogs);
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else
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printf("%s <%d>: ", ent->log, ent->numlogs);
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}
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@ -175,6 +182,9 @@ do_entry(struct conf_entry * ent)
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if (ent->flags & CE_COMPACT)
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printf("%s <%dZ>: trimming\n",
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ent->log, ent->numlogs);
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else if (ent->flags & CE_BZCOMPACT)
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printf("%s <%dJ>: trimming\n",
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ent->log, ent->numlogs);
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else
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printf("%s <%d>: trimming\n",
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ent->log, ent->numlogs);
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@ -412,6 +422,8 @@ parse_file(char **files)
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while (q && *q && !isspace(*q)) {
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if ((*q == 'Z') || (*q == 'z'))
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working->flags |= CE_COMPACT;
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else if ((*q == 'J') || (*q == 'j'))
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working->flags |= CE_BZCOMPACT;
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else if ((*q == 'B') || (*q == 'b'))
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working->flags |= CE_BINARY;
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else if (*q != '-')
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@ -480,6 +492,7 @@ dotrim(char *log, char *pid_file, int numdays, int flags, int perm,
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char dirpart[MAXPATHLEN], namepart[MAXPATHLEN];
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char file1[MAXPATHLEN], file2[MAXPATHLEN];
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char zfile1[MAXPATHLEN], zfile2[MAXPATHLEN];
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char jfile1[MAXPATHLEN];
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int notified, need_notification, fd, _numdays;
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struct stat st;
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pid_t pid;
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@ -524,19 +537,25 @@ dotrim(char *log, char *pid_file, int numdays, int flags, int perm,
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(void) snprintf(file1, sizeof(file1), "%s/%s.%d", dirpart, namepart, numdays);
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(void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1,
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COMPRESS_POSTFIX);
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snprintf(jfile1, sizeof(jfile1), "%s%s", file1,
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BZCOMPRESS_POSTFIX);
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} else {
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/* name of oldest log */
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(void) snprintf(file1, sizeof(file1), "%s.%d", log, numdays);
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(void) snprintf(zfile1, sizeof(zfile1), "%s%s", file1,
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COMPRESS_POSTFIX);
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snprintf(jfile1, sizeof(jfile1), "%s%s", file1,
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BZCOMPRESS_POSTFIX);
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}
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if (noaction) {
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printf("rm -f %s\n", file1);
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printf("rm -f %s\n", zfile1);
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printf("rm -f %s\n", jfile1);
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} else {
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(void) unlink(file1);
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(void) unlink(zfile1);
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(void) unlink(jfile1);
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}
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/* Move down log files */
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@ -555,8 +574,16 @@ dotrim(char *log, char *pid_file, int numdays, int flags, int perm,
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if (lstat(file1, &st)) {
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(void) strlcat(zfile1, COMPRESS_POSTFIX, sizeof(zfile1));
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(void) strlcat(zfile2, COMPRESS_POSTFIX, sizeof(zfile2));
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if (lstat(zfile1, &st))
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continue;
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if (lstat(zfile1, &st)) {
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strlcpy(zfile1, file1, sizeof(zfile1));
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strlcpy(zfile2, file2, sizeof(zfile2));
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strlcat(zfile1, BZCOMPRESS_POSTFIX,
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sizeof(zfile1));
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strlcat(zfile2, BZCOMPRESS_POSTFIX,
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sizeof(zfile2));
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if (lstat(zfile1, &st))
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continue;
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}
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}
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if (noaction) {
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printf("mv %s %s\n", zfile1, zfile2);
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@ -624,7 +651,7 @@ dotrim(char *log, char *pid_file, int numdays, int flags, int perm,
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printf("daemon pid %d notified\n", (int) pid);
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}
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}
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if ((flags & CE_COMPACT)) {
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if ((flags & CE_COMPACT) || (flags & CE_BZCOMPACT)) {
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if (need_notification && !notified)
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warnx("log %s not compressed because daemon not notified", log);
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else if (noaction)
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@ -637,9 +664,15 @@ dotrim(char *log, char *pid_file, int numdays, int flags, int perm,
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}
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if (archtodir) {
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(void) snprintf(file1, sizeof(file1), "%s/%s", dirpart, namepart);
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compress_log(file1);
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if (flags & CE_COMPACT)
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compress_log(file1);
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else if (flags & CE_BZCOMPACT)
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bzcompress_log(file1);
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} else {
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compress_log(log);
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if (flags & CE_COMPACT)
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compress_log(log);
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else if (flags & CE_BZCOMPACT)
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bzcompress_log(log);
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}
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}
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}
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@ -670,13 +703,30 @@ compress_log(char *log)
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(void) snprintf(tmp, sizeof(tmp), "%s.0", log);
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pid = fork();
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if (pid < 0)
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err(1, "fork");
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err(1, "gzip fork");
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else if (!pid) {
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(void) execl(_PATH_GZIP, _PATH_GZIP, "-f", tmp, (char *)0);
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err(1, _PATH_GZIP);
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}
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}
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/* Fork of bzip2 to compress the old log file */
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static void
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bzcompress_log(char *log)
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{
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pid_t pid;
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char tmp[MAXPATHLEN];
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snprintf(tmp, sizeof(tmp), "%s.0", log);
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pid = fork();
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if (pid < 0)
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err(1, "bzip2 fork");
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else if (!pid) {
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execl(_PATH_BZIP2, _PATH_BZIP2, "-f", tmp, 0);
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err(1, _PATH_BZIP2);
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}
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}
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/* Return size in kilobytes of a file */
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static int
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sizefile(char *file)
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@ -24,4 +24,5 @@ provided "as is" without express or implied warranty.
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#define _PATH_CONF "/etc/newsyslog.conf"
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#define _PATH_SYSLOGPID _PATH_VARRUN "syslog.pid"
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#define _PATH_BZIP2 "/usr/bin/bzip2"
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#define _PATH_GZIP "/usr/bin/gzip"
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