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/* |
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* Copyright (C) 2004 - 2007 Tomasz Kojm <tkojm@clamav.net> |
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*
* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. |
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*
* This program 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, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA. |
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*/
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <stdio.h> |
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#include <stdlib.h> |
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#ifdef HAVE_UNISTD_H |
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#include <unistd.h> |
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#endif |
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#include <string.h> |
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#include <time.h> |
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#include <sys/types.h>
#include <sys/stat.h> |
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#ifndef C_WINDOWS |
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#include <dirent.h> |
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#endif |
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#include <fcntl.h> |
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#include <ctype.h> |
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#include <errno.h> |
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|
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#include "shared/cfgparser.h"
#include "shared/output.h" |
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|
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#include "libclamav/clamav.h"
#include "libclamav/cvd.h" |
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#include "libclamav/others.h" /* for cli_rmdirs() */ |
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#include "libclamav/regex/regex.h" |
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#include "libclamav/version.h" |
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#include "shared/misc.h" |
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#ifndef O_BINARY
#define O_BINARY 0
#endif |
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|
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#ifndef REPO_VERSION
#define REPO_VERSION "exported"
#endif
const char *get_version(void)
{
if(!strncmp("devel-",VERSION,6) && strcmp("exported",REPO_VERSION)) { |
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return REPO_VERSION""VERSION_SUFFIX; |
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}
/* it is a release, or we have nothing better */ |
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return VERSION""VERSION_SUFFIX; |
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} |
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/* CL_NOLIBCLAMAV means to omit functions that depends on libclamav */
#ifndef CL_NOLIBCLAMAV |
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char *freshdbdir(void) |
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{
struct cl_cvd *d1, *d2; |
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struct cfgstruct *copt;
const struct cfgstruct *cpt; |
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const char *dbdir; |
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char *retdir; |
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|
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|
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/* try to find fresh directory */
dbdir = cl_retdbdir(); |
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if((copt = getcfg(CONFDIR"/freshclam.conf", 0))) { |
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if((cpt = cfgopt(copt, "DatabaseDirectory"))->enabled || (cpt = cfgopt(copt, "DataDirectory"))->enabled) { |
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if(strcmp(dbdir, cpt->strarg)) { |
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char *daily = (char *) malloc(strlen(cpt->strarg) + strlen(dbdir) + 30); |
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sprintf(daily, "%s/daily.cvd", cpt->strarg); |
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if(access(daily, R_OK))
sprintf(daily, "%s/daily.cld", cpt->strarg); |
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|
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if(!access(daily, R_OK) && (d1 = cl_cvdhead(daily))) { |
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sprintf(daily, "%s/daily.cvd", dbdir); |
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if(access(daily, R_OK))
sprintf(daily, "%s/daily.cld", dbdir); |
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|
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if(!access(daily, R_OK) && (d2 = cl_cvdhead(daily))) { |
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free(daily);
if(d1->version > d2->version)
dbdir = cpt->strarg;
cl_cvdfree(d2);
} else {
free(daily);
dbdir = cpt->strarg;
}
cl_cvdfree(d1);
} else {
free(daily);
}
}
}
}
|
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retdir = strdup(dbdir);
if(copt)
freecfg(copt);
return retdir; |
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}
|
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|
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void print_version(const char *dbdir) |
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{ |
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char *fdbdir, *path;
const char *pt; |
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struct cl_cvd *daily;
|
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if(dbdir)
pt = dbdir;
else
pt = fdbdir = freshdbdir();
if(!pt) { |
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printf("ClamAV %s\n",get_version()); |
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return;
}
if(!(path = malloc(strlen(pt) + 11))) {
if(!dbdir)
free(fdbdir); |
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return; |
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} |
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|
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sprintf(path, "%s/daily.cvd", pt); |
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if(access(path, R_OK)) |
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sprintf(path, "%s/daily.cld", pt);
if(!dbdir)
free(fdbdir); |
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|
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if(!access(path, R_OK) && (daily = cl_cvdhead(path))) { |
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time_t t = (time_t) daily->stime; |
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|
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printf("ClamAV %s/%d/%s", get_version(), daily->version, ctime(&t)); |
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cl_cvdfree(daily); |
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} else { |
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printf("ClamAV %s\n",get_version()); |
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}
free(path);
} |
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#endif |
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int filecopy(const char *src, const char *dest)
{
#ifdef C_DARWIN |
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pid_t pid; |
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|
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/* On Mac OS X use ditto and copy resource fork, too. */
switch(pid = fork()) {
case -1:
return -1;
case 0: |
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execl("/usr/bin/ditto", "ditto", src, dest, NULL); |
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perror("execl(ditto)"); |
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break;
default:
wait(NULL);
return 0; |
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}
|
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return -1; |
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#else
char buffer[FILEBUFF]; |
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int s, d, bytes, ret;
struct stat sb;
|
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|
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if((s = open(src, O_RDONLY|O_BINARY)) == -1) |
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return -1;
|
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if((d = open(dest, O_CREAT|O_WRONLY|O_TRUNC|O_BINARY, 0644)) == -1) { |
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close(s);
return -1;
}
while((bytes = read(s, buffer, FILEBUFF)) > 0) |
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if(write(d, buffer, bytes) < bytes) {
close(s);
close(d);
return -1;
} |
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close(s);
/* njh@bandsman.co.uk: check result of close for NFS file */ |
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ret = close(d);
stat(src, &sb);
chmod(dest, sb.st_mode);
return ret; |
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#endif
} |
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|
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#ifndef CL_NOLIBCLAMAV |
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int dircopy(const char *src, const char *dest)
{
DIR *dd;
struct dirent *dent;
struct stat sb;
char spath[512], dpath[512];
if(stat(dest, &sb) == -1) { |
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if(mkdir(dest, 0755)) { |
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/* mprintf("!dircopy: Can't create temporary directory %s\n", dest); */ |
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return -1;
}
}
if((dd = opendir(src)) == NULL) { |
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/* mprintf("!dircopy: Can't open directory %s\n", src); */ |
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return -1;
}
while((dent = readdir(dd))) { |
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#if (!defined(C_INTERIX)) && (!defined(C_WINDOWS)) |
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if(dent->d_ino)
#endif
{
if(!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
continue;
snprintf(spath, sizeof(spath), "%s/%s", src, dent->d_name);
snprintf(dpath, sizeof(dpath), "%s/%s", dest, dent->d_name);
if(filecopy(spath, dpath) == -1) { |
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/* mprintf("!dircopy: Can't copy %s to %s\n", spath, dpath); */ |
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cli_rmdirs(dest); |
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closedir(dd);
return -1;
}
}
}
closedir(dd);
return 0;
} |
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#endif |
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|
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#ifndef CL_NOLIBCLAMAV |
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int cvd_unpack(const char *cvd, const char *destdir)
{
int fd;
|
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if((fd = open(cvd, O_RDONLY|O_BINARY)) == -1) |
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return -1;
if(lseek(fd, 512, SEEK_SET) == -1) {
close(fd);
return -1;
}
|
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if(cli_untgz(fd, destdir) == -1) {
close(fd); |
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return -1; |
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}
close(fd); |
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return 0;
} |
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#endif |
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|
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int daemonize(void) |
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{ |
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#if defined(C_OS2) || defined(C_WINDOWS)
fputs("Background mode is not supported on your operating system\n", stderr); |
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return -1; |
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#else |
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int fds[3], i;
pid_t pid; |
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|
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|
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fds[0] = open("/dev/null", O_RDONLY);
fds[1] = open("/dev/null", O_WRONLY);
fds[2] = open("/dev/null", O_WRONLY);
if(fds[0] == -1 || fds[1] == -1 || fds[2] == -1) {
fputs("Can't open /dev/null\n", stderr); |
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for(i = 0; i <= 2; i++) |
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if(fds[i] != -1)
close(fds[i]);
return -1;
} |
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|
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for(i = 0; i <= 2; i++) {
if(dup2(fds[i], i) == -1) {
fprintf(stderr, "dup2(%d, %d) failed\n", fds[i], i); /* may not be printed */
for(i = 0; i <= 2; i++)
if(fds[i] != -1)
close(fds[i]);
return -1;
} |
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}
|
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for(i = 0; i <= 2; i++)
if(fds[i] > 2)
close(fds[i]);
pid = fork();
if(pid == -1)
return -1;
if(pid) |
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exit(0);
setsid(); |
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return 0; |
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#endif
} |
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#ifndef CL_NOLIBCLAMAV
int match_regex(const char *filename, const char *pattern)
{
regex_t reg; |
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int match, flags = REG_EXTENDED | REG_NOSUB; |
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char fname[513]; |
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#if defined(C_OS2) || defined(C_WINDOWS) |
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size_t len;
|
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flags |= REG_ICASE; /* case insensitive on Windows */ |
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#endif
if(cli_regcomp(®, pattern, flags) != 0)
return 2;
|
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#if !defined(C_OS2) && !defined(C_WINDOWS) |
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if(pattern[strlen(pattern) - 1] == '/') {
snprintf(fname, 511, "%s/", filename);
fname[512] = 0;
#else
if(pattern[strlen(pattern) - 1] == '\\') {
strncpy(fname, filename, 510);
fname[509]='\0';
len = strlen(fname);
if(fname[len - 1] != '\\') {
fname[len] = '\\';
fname[len + 1] = 0;
}
#endif
} else {
strncpy(fname, filename, 513);
fname[512]='\0';
}
match = (cli_regexec(®, fname, 0, NULL, 0) == REG_NOMATCH) ? 0 : 1;
cli_regfree(®);
return match;
}
#endif |