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misc.c
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// -*- mode: C; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil -*-
// vim: set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
/*
Copyright (c) 2009 Eucalyptus Systems, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, only version 3 of the License.
This file is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
Please contact Eucalyptus Systems, Inc., 130 Castilian
Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
if you need additional information or have any questions.
This file may incorporate work covered under the following copyright and
permission notice:
Software License Agreement (BSD License)
Copyright (c) 2008, Regents of the University of California
Redistribution and use of this software in source and binary forms, with
or without modification, are permitted provided that the following
conditions are met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. USERS OF
THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE
LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS
SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN
THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT
OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO IDENTIFIED, OR
WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT NEEDED TO COMPLY WITH
ANY SUCH LICENSES OR RIGHTS.
*/
#define _FILE_OFFSET_BITS 64 // so large-file support works on 32-bit systems
#include <stdio.h>
#include <stdlib.h>
#define _GNU_SOURCE
#include <string.h> // strlen, strcpy
#include <ctype.h> // isspace
#include <assert.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <time.h>
#include <math.h> // powf
#include <fcntl.h> // open
#include <utime.h> // utime
#include <sys/wait.h>
#include <sys/types.h>
#include <dirent.h> // opendir, etc
#include <errno.h> // errno
#include <sys/time.h> // gettimeofday
#include <limits.h>
#include <sys/mman.h> // mmap
#include <pthread.h>
#include "misc.h"
#include "euca_auth.h"
#include "diskutil.h"
#include "vnetwork.h"
// Given an array of pointers to command names (e.g., "ls", "dd", etc.),
// as well as either an array of NULL pointers or pointers to full paths,
// either the full paths are verified or system $PATH is searched for
// the names and full paths are pointed to by helpers_path[] entries.
// Number of missing entries is returned or -1 for error.
int verify_helpers (char **helpers, char **helpers_path, int num_helpers)
{
int missing_helpers = 0;
char **tmp_helpers_path = helpers_path;
if(helpers_path==NULL)
tmp_helpers_path = (char**) calloc (num_helpers, sizeof(char*));
for (int i=0; i<num_helpers; i++) {
struct stat statbuf;
int done = 0;
// full path was given, so it just needs to be verified
if (helpers_path != NULL && helpers_path[i]!=NULL) {
int rc = stat (helpers_path[i], &statbuf);
if (!rc && S_ISREG(statbuf.st_mode)) {
done++;
}
} else { // no full path was given, so search $PATH
char *tok, *toka, *path, *helper, *save, *savea;
tok = getenv("PATH");
if (!tok) {
missing_helpers = -1;
goto cleanup;
}
path = strdup(tok);
if (!path) {
missing_helpers = -1;
goto cleanup;
}
{ // append some Eucalyptus-specific locations to $PATH
char * euca = getenv ("EUCALYPTUS");
if (euca == NULL) {
euca = "";
}
char * locations [] = {
"/usr/lib/eucalyptus",
"/usr/share/eucalyptus",
"/usr/sbin",
NULL
};
for (int i = 0; locations [i]; i++) {
char lpath [MAX_PATH];
snprintf (lpath, sizeof (lpath), ":%s%s", euca, locations [i]);
char * newpath = strdupcat (path, lpath);
if (newpath == NULL) {
missing_helpers = -1;
goto cleanup;
}
path = newpath;
}
}
tok = strtok_r(path, ":", &save);
done=0;
while (tok && !done) {
helper = strdup(helpers[i]);
toka = strtok_r(helper, ",", &savea);
while (toka && !done) {
char file[MAX_PATH];
snprintf(file, MAX_PATH, "%s/%s", tok, toka);
int rc = stat(file, &statbuf);
if (!rc) {
if (S_ISREG(statbuf.st_mode)) {
tmp_helpers_path[i] = strdup(file);
done++;
}
}
toka = strtok_r(NULL, ":", &savea);
}
tok = strtok_r(NULL, ":", &save);
if (helper) free(helper);
}
free(path);
}
if (!done) {
missing_helpers++;
logprintfl (EUCADEBUG2, "did not find '%s' in path\n", helpers[i]);
} else {
logprintfl (EUCADEBUG2, "found '%s' at '%s'\n", helpers[i], tmp_helpers_path[i]);
}
}
cleanup:
if(helpers_path == NULL) {
for(int i = 0; i < num_helpers; i++)
if(tmp_helpers_path[i])
free(tmp_helpers_path[i]);
free(tmp_helpers_path);
}
return missing_helpers;
}
int timeread(int fd, void *buf, size_t bytes, int timeout) {
int rc;
fd_set rfds;
struct timeval tv;
if (timeout <= 0) timeout = 1;
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
tv.tv_sec = timeout;
tv.tv_usec = 0;
rc = select(fd+1, &rfds, NULL, NULL, &tv);
if (rc <= 0) {
// timeout
logprintfl(EUCAERROR, "timeread(): select() timed out for read: timeout=%d\n", timeout);
return(-1);
}
rc = read(fd, buf, bytes);
return(rc);
}
int add_euca_to_path (const char * euca_home_supplied)
{
const char * euca_home;
if (euca_home_supplied && strlen (euca_home_supplied)) {
euca_home = euca_home_supplied;
} else if (getenv(EUCALYPTUS_ENV_VAR_NAME) && strlen (getenv(EUCALYPTUS_ENV_VAR_NAME))) {
euca_home = getenv(EUCALYPTUS_ENV_VAR_NAME);
} else { // we'll assume root
euca_home = "";
}
char * old_path = getenv ("PATH");
if (old_path==NULL) old_path = "";
char new_path [4098];
snprintf (new_path, sizeof (new_path),
"%s/usr/share/eucalyptus:" // (connect|disconnect iscsi, get_xen_info, getstats, get_sys_info)
"%s/usr/sbin:" // (eucalyptus-cloud, euca_conf, euca_sync_key, euca-* admin commands)
"%s/usr/lib/eucalyptus:" // (rootwrap, mountwrap)
"%s",
euca_home, euca_home, euca_home,
old_path);
return setenv ("PATH", new_path, TRUE);
}
// Wrapper around waitpid() that retries waiting until
// a timeout, specified in seconds, occurs. Return value
// is that of waitpid():
//
// -1 means there was an error
// 0 means there was a timeout
// N is the PID of the process
//
// When a positive value is returned, status is set
// to the exit status of the process
pid_t timewait (pid_t pid, int *status, int timeout_sec)
{
if (timeout_sec < 0) // do not allow negative timeouts
timeout_sec = 0;
*status = 1; // TODO: remove this once we know that no callers rely on status to detect timeout
int rc = waitpid (pid, status, WNOHANG);
time_t elapsed_usec = 0;
while (rc == 0 && elapsed_usec < (timeout_sec * 1000000)) {
usleep (10000);
elapsed_usec += 10000;
rc = waitpid(pid, status, WNOHANG);
}
if (rc == 0) {
logprintfl(EUCAERROR, "waitpid() timed out: pid=%d\n", pid);
}
return (rc);
}
int timelog=0; /* change to 1 for TIMELOG entries */
int logging=0;
int loglevel=EUCADEBUG;
int logrollnumber=4;
FILE *LOGFH=NULL;
char logFile[MAX_PATH];
int param_check(char *func, ...) {
int fail;
va_list al;
if (!func) {
return(1);
}
va_start(al, func);
fail=0;
if (!strcmp(func, "vnetGenerateDHCP") || !strcmp(func, "vnetKickDHCP")) {
vnetConfig *a = va_arg(al, vnetConfig *);
if (!a) {
fail=1;
}
} else if (!strcmp(func, "vnetAddPublicIP") || !strcmp(func, "vnetAddDev")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
if (!a || !b) {
fail=1;
}
} else if (!strcmp(func, "vnetAddHost")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
char *c = va_arg(al, char *);
int d = va_arg(al, int);
if (!a || !b || (d < 0) || (d > NUMBER_OF_VLANS-1)) {
fail=1;
}
} else if (!strcmp(func, "vnetGetNextHost")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
char *c = va_arg(al, char *);
int d = va_arg(al, int);
if (!a || !b || !c || d < 0 || d > NUMBER_OF_VLANS-1) {
fail=1;
}
} else if (!strcmp(func, "vnetDelHost") || !strcmp(func, "vnetEnableHost") || !strcmp(func, "vnetDisableHost")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
char *c = va_arg(al, char *);
int d = va_arg(al, int);
if (!a || (!b && !c) || d < 0 || d > NUMBER_OF_VLANS-1) {
fail=1;
}
} else if (!strcmp(func, "vnetDeleteChain") || !strcmp(func, "vnetCreateChain")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
char *c = va_arg(al, char *);
if (!a || !b || !c) {
fail=1;
}
} else if (!strcmp(func, "vnetTableRule")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
char *c = va_arg(al, char *);
char *d = va_arg(al, char *);
char *e = va_arg(al, char *);
char *f = va_arg(al, char *);
char *g = va_arg(al, char *);
if (!a || !b || !c || !d || (!e && !f && !g)) {
fail=1;
}
} else if (!strcmp(func, "vnetSetVlan")) {
vnetConfig *a = va_arg(al, vnetConfig *);
int b = va_arg(al, int);
char *c = va_arg(al, char *);
char *d = va_arg(al, char *);
if (!a || b < 0 || b >= NUMBER_OF_VLANS || !c || !d) {
fail=1;
}
} else if (!strcmp(func, "vnetDelVlan")) {
vnetConfig *a = va_arg(al, vnetConfig *);
int b = va_arg(al, int);
if (!a || b < 0 || b >= NUMBER_OF_VLANS) {
fail=1;
}
} else if (!strcmp(func, "vnetInit")) {
vnetConfig *a = va_arg(al, vnetConfig *);
char *b = va_arg(al, char *);
char *c = va_arg(al, char *);
char *d = va_arg(al, char *);
int e = va_arg(al, int);
if (!a || !b || !c || d<0) {
fail=1;
}
}
va_end(al);
if (fail) {
logprintfl (EUCAERROR, "INTERNAL ERROR: incorrect input parameters to function %s\n", func);
return(1);
}
return(0);
}
int check_process(pid_t pid, char *search) {
char file[MAX_PATH], buf[1024];
FILE *FH=NULL;
int rc, ret=0;
snprintf(file, MAX_PATH, "/proc/%d/cmdline", pid);
rc = check_file(file);
if (!rc) {
// cmdline exists
ret = 1;
if (search) {
// check if cmdline contains 'search'
FH = fopen(file, "r");
if (FH) {
bzero(buf, 1024);
while(fgets(buf, 1024, FH)) {
char *p;
while((p = memchr(buf, '\0', 1024))) {
*p = 'X';
}
buf[1023] = '\0';
if (strstr(buf, search)) {
ret = 0;
}
}
fclose(FH);
}
} else {
ret = 0;
}
} else {
ret = 1;
}
return(ret);
}
// make sure 'dir' is a directory or a soft-link to one
// and that it is readable by the current user (1 on error)
int check_directory (const char *dir)
{
if (!dir) {
return (1);
}
char checked_dir [MAX_PATH];
snprintf (checked_dir, sizeof (checked_dir), "%s", dir);
struct stat mystat;
int rc = lstat (checked_dir, &mystat);
if (rc < 0)
return 1;
// if a soft link, append '/' and try lstat() again
if (!S_ISDIR(mystat.st_mode) && S_ISLNK(mystat.st_mode)) {
snprintf (checked_dir, sizeof (checked_dir), "%s/", dir);
rc = lstat (checked_dir, &mystat);
if (rc < 0)
return 1;
}
if (!S_ISDIR (mystat.st_mode))
return 1;
DIR * d = opendir (checked_dir);
if (d==NULL)
return 1;
closedir (d);
return 0;
}
int check_file_newer_than(char *file, time_t mtime) {
struct stat mystat;
int rc;
if (!file) {
return(1);
} else if (mtime <= 0) {
return(0);
}
bzero(&mystat, sizeof(struct stat));
rc = stat(file, &mystat);
if (rc) {
return(1);
}
if (mystat.st_mtime > mtime) {
return(0);
}
return(1);
}
int check_block (const char *file)
{
int rc;
struct stat mystat;
if (!file) {
return(1);
}
rc = lstat(file, &mystat);
if (rc < 0 || !S_ISBLK(mystat.st_mode)) {
return(1);
}
return(0);
}
// returns 0 if file is a readable regular file, 1 otherwise
int check_file (const char *file)
{
int rc;
struct stat mystat;
if (!file) {
return(1);
}
rc = lstat(file, &mystat);
if (rc < 0 || !S_ISREG(mystat.st_mode)) {
return(1);
}
return(0);
}
// return 0 if path exists
int check_path (const char *path)
{
int rc;
struct stat mystat;
if (!path) {
return(1);
}
rc = lstat(path, &mystat);
if (rc < 0) {
return(1);
}
return(0);
}
/* given string *stringp, replace occurences of <source> with <destination>
* and return the new string in stringp */
char * replace_string (char ** stringp, char * source, char * destination )
{
char *start=NULL, *substart=NULL, *tok=NULL, * new_string=NULL;
if (source==NULL || destination==NULL) return NULL;
char * buf;
int maxlen = 32768*2;
buf = malloc(sizeof(char) * maxlen);
new_string = malloc(sizeof(char) * maxlen); /* TODO: this has to be dynamic */
if (!buf || !new_string) {
fprintf(stderr, "replace_string: out of memory\n");
if (buf) free(buf);
if (new_string) free(new_string);
return NULL;
}
bzero(new_string, maxlen);
start = * stringp;
substart = start;
tok = strstr(start, source);
while(tok != NULL) {
*tok = '\0';
snprintf (buf, maxlen, "%s%s%s", new_string, substart, destination);
strncpy (new_string, buf, maxlen);
tok+=strlen(source);
substart = tok;
tok = strstr(substart, source);
}
snprintf (buf, maxlen, "%s%s", new_string, substart);
strncpy (new_string, buf, maxlen);
if (buf) free(buf);
free (* stringp);
* stringp = new_string;
return new_string;
}
/* do sscanf() on each line in lines[], returning upon first match */
/* returns 1 if there was match and 0 otherwise */
int sscanf_lines (char * lines, char * format, void * varp)
{
char * copy;
char * start, * end;
int found = 0;
if (!lines) return found;
copy = strdup(lines);
if (!copy) return found;
for (start = copy; start && *start!='\0' && !found; start = end+1 ) {
int newline = 0;
for (end = start+1; *end!='\n' && *end!='\0'; end++);
if (*end=='\n') {
*end='\0';
newline = 1;
}
if (sscanf (start, format, varp)==1)
found=1;
if (!newline) {
end--; /* so that start=='\0' */
}
}
free(copy);
return found;
}
char * fp2str (FILE * fp)
{
# define INCREMENT 512
int buf_max = INCREMENT;
int buf_current = 0;
char * last_read;
char * buf = NULL;
if (fp==NULL) return NULL;
do {
// create/enlarge the buffer
void * new_buf;
if ((new_buf = realloc (buf, buf_max)) == NULL) {
if ( buf != NULL ) { // previous realloc()s worked
free (buf); // free partial buffer
}
return NULL;
}
memset(new_buf+buf_current, 0, INCREMENT * sizeof(char));
buf = new_buf;
logprintfl (EUCADEBUG3, "fp2str: enlarged buf to %d\n", buf_max);
do { // read in until EOF or buffer is full
last_read = fgets (buf+buf_current, buf_max-buf_current, fp);
if ( last_read != NULL ) {
buf_current = strlen(buf);
} else {
if (! feof(fp)) {
logprintfl (EUCAERROR, "fp2str: failed while reading from file handle\n");
free (buf);
return NULL;
}
}
logprintfl (EUCADEBUG3, "fp2str: read %d characters so far (max=%d, last=%s)\n", buf_current, buf_max, last_read?"no":"yes");
} while ( last_read && buf_max > buf_current+1 ); // +1 is needed for fgets() to put \0
buf_max += INCREMENT; // in case it is full
} while (last_read);
return buf;
}
/* execute system(shell_command) and return stdout in new string
* pointed to by *stringp */
char * system_output (char * shell_command )
{
char * buf = NULL;
FILE * fp;
/* forks off command (this doesn't fail if command doesn't exist */
logprintfl (EUCADEBUG2, "system_output(): [%s]\n", shell_command);
if ( (fp=popen(shell_command, "r")) == NULL)
return NULL; /* caller can check errno */
buf = fp2str (fp);
pclose(fp);
if (buf && (strlen(buf) == 0)) {
free(buf);
buf = NULL;
}
return buf;
}
char *getConfString(char configFiles[][MAX_PATH], int numFiles, char *key) {
int rc, i, done;
char *tmpstr=NULL;
done=0;
for (i=0; i<numFiles && !done; i++) {
rc = get_conf_var(configFiles[i], key, &tmpstr);
if (rc == 1) {
done++;
}
}
if (tmpstr && strlen(tmpstr)) {
char *tmpptr;
tmpptr = tmpstr + (strlen(tmpstr)-1);
while(*tmpptr == ' ') {
*tmpptr = '\0';
tmpptr = tmpstr + (strlen(tmpstr)-1);
}
}
return(tmpstr);
}
/* search for variable #name# in file #path# and return whatever is after
* = in value (which will need to be freed).
*
* Example of what we are able to parse:
* TEST="test"
* TEST=test
* TEST = test
*
* Return 1 on success, 0 on variable not found and -1 on error (parse or
* file not found)
*/
int
get_conf_var( const char *path,
const char *name,
char **value) {
FILE *f;
char *buf, *ptr, *ret;
int len;
/* sanity check */
if (path == NULL || path[0] == '\0' || name == NULL
|| name[0] == '\0'|| value == NULL) {
return -1;
}
*value = NULL;
f = fopen(path, "r");
if (f == NULL) {
return -1;
}
len = strlen(name);
buf = malloc(sizeof(char) * 32768);
while (fgets(buf, 32768, f)) {
/* the process here is fairly simple: spaces are not
* considered (unless between "") so we remove them
* before every step. We look for the variable *name*
* first, then for an = then for the value */
for (ptr = buf; (*ptr != '\0') && isspace((int)*ptr); ptr++)
;
if (strncmp(ptr, name, len) != 0) {
continue;
}
for (ptr += len; (*ptr != '\0') && isspace((int)*ptr); ptr++)
;
if (*ptr != '=') {
continue;
}
/* we are in business */
for (ptr++; (*ptr != '\0') && isspace((int)*ptr); ptr++)
;
if (*ptr == '"') {
/* we have a quote, we need the companion */
ret = ++ptr;
while ((*ptr != '"')) {
if (*ptr == '\0') {
/* something wrong happened */
fclose(f);
free(buf);
return -1;
}
ptr++;
}
} else {
/* well we get the single word right after the = */
ret = ptr;
while (!isspace((int)*ptr) && *ptr != '#'
&& *ptr != '\0') {
ptr++;
}
}
*ptr = '\0';
*value = strdup(ret);
if (*value == NULL) {
fclose(f);
free(buf);
return -1;
}
fclose(f);
free(buf);
return 1;
}
fclose(f);
free(buf);
return 0;
}
void
free_char_list(char **value) {
int i;
if (value == NULL || *value == NULL) {
return;
}
for (i = 0; value[i] != NULL; i++) {
free(value[i]);
}
free(value);
}
char **
from_var_to_char_list( const char *v) {
char *value, **tmp, *ptr, *w, a;
int i;
/* sanity check */
if (v == NULL || v[0] == '\0') {
return NULL;
}
tmp = malloc(sizeof(char*));
if (tmp == NULL) {
return NULL;
}
value = strdup(v);
if (value == NULL) {
free(tmp);
return NULL;
}
tmp[0] = NULL;
i = 0;
ptr = value;
for (i = 0, ptr = value; *ptr != '\0'; ptr++) {
/* let's look for the beginning of the word */
for (; *ptr != '\0' && isspace((int)*ptr); ptr++)
;
if (*ptr == '\0') {
/* end of string with no starting word: we are
* done here */
break;
}
w = ptr; /* beginning of word */
for (ptr++; *ptr != '\0' && !isspace((int)*ptr); ptr++)
;
/* found the end of word */
a = *ptr;
*ptr = '\0';
tmp = realloc(tmp, sizeof(char *)*(i+2));
if (tmp == NULL) {
free(value);
return NULL;
}
tmp[i] = strdup(w);
if (tmp[i] == NULL) {
free_char_list(tmp);
free(value);
return NULL;
}
tmp[++i] = NULL;
/* now we need to check if we were at the end of the
* string */
if (a == '\0') {
break;
}
}
free(value);
return tmp;
}
int logfile(char *file, int in_loglevel, int in_logrollnumber) {
logging = 0;
if (in_loglevel >= EUCADEBUG2 && in_loglevel <= EUCAFATAL) {
loglevel = in_loglevel;
} else {
loglevel = EUCADEBUG;
}
if (file == NULL) {
LOGFH = NULL;
} else {
if (LOGFH != NULL) {
fclose(LOGFH);
}
snprintf(logFile, MAX_PATH, "%s", file);
LOGFH = fopen(file, "a");
if (LOGFH) {
logging=1;
}
}
if (in_logrollnumber > 0 && in_logrollnumber < 100) {
logrollnumber = in_logrollnumber;
}
return(1-logging);
}
void eventlog(char *hostTag, char *userTag, char *cid, char *eventTag, char *other) {
double ts;
struct timeval tv;
char hostTagFull[256];
char hostName [256];
FILE *PH;
if (!timelog) return;
hostTagFull[0] = '\0';
PH = popen("hostname", "r");
if(PH) {
fscanf(PH, "%256s", hostName);
pclose(PH);
snprintf (hostTagFull, 256, "%s/%s", hostName, hostTag);
gettimeofday(&tv, NULL);
ts = (double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0);
logprintf("TIMELOG %s:%s:%s:%s:%f:%s\n", hostTagFull, userTag, cid, eventTag, ts, other);
}
}
int logprintf(const char *format, ...) {
va_list ap;
int rc;
char buf[27], *eol;
time_t t;
FILE *file;
rc = 1;
va_start(ap, format);
if (logging) {
file = LOGFH;
} else {
file = stdout;
}
t = time(NULL);
if (ctime_r(&t, buf)) {
eol = strchr(buf, '\n');
if (eol) {
*eol = '\0';
}
fprintf(file, "[%s] ", buf);
}
rc = vfprintf(file, format, ap);
fflush(file);
va_end(ap);
return(rc);
}
int logprintfl(int level, const char *format, ...) {
va_list ap;
int rc, fd;
char buf[27], *eol;
time_t t;
struct stat statbuf;
FILE *file;
if (level < loglevel) {
return(0);
}
rc = 1;
va_start(ap, format);
if (logging) {
file = LOGFH;
fd = fileno(file);
if (fd > 0) {
rc = fstat(fd, &statbuf);
if (!rc && ((int)statbuf.st_size > MAXLOGFILESIZE)) {
int i;
char oldFile[MAX_PATH], newFile[MAX_PATH];
rc = stat(logFile, &statbuf);
if (!rc && ((int)statbuf.st_size > MAXLOGFILESIZE)) {
for (i=logrollnumber; i>=0; i--) {
snprintf(oldFile, MAX_PATH, "%s.%d", logFile, i);
snprintf(newFile, MAX_PATH, "%s.%d", logFile, i+1);
rename(oldFile, newFile);
}
snprintf(oldFile, MAX_PATH, "%s", logFile);
snprintf(newFile, MAX_PATH, "%s.%d", logFile, 0);
rename(oldFile, newFile);
}
fclose(LOGFH);
LOGFH = fopen(logFile, "a");
if (LOGFH) {
file = LOGFH;
} else {
file = stdout;
}
}
}
} else {
file = stderr;
}
t = time(NULL);
if (ctime_r(&t, buf)) {
eol = strchr(buf, '\n');
if (eol) {
*eol = '\0';
}
fprintf(file, "[%s]", buf);
}
fprintf(file, "[%06d]", getpid());
if (level == EUCADEBUG2) {fprintf(file, "[%-10s] ", "EUCADEBUG2");}
else if (level == EUCADEBUG) {fprintf(file, "[%-10s] ", "EUCADEBUG");}
else if (level == EUCAINFO) {fprintf(file, "[%-10s] ", "EUCAINFO");}
else if (level == EUCAWARN) {fprintf(file, "[%-10s] ", "EUCAWARN");}
else if (level == EUCAERROR) {fprintf(file, "[%-10s] ", "EUCAERROR");}
else if (level == EUCAFATAL) {fprintf(file, "[%-10s] ", "EUCAFATAL");}
else {fprintf(file, "[%-10s] ", "EUCADEBUG");}
rc = vfprintf(file, format, ap);
fflush(file);