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#include <config.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#ifdef HAVE_DIRENT_H
# include <dirent.h>
#else
# define dirent direct
# ifdef HAVE_SYS_NDIR_H
# include <sys/ndir.h>
# endif
# ifdef HAVE_SYS_DIR_H
# include <sys/dir.h>
# endif
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#include <string.h>
#include <signal.h>
#include <sys/param.h>
#include <ctype.h>
#include "suck_config.h"
#include "suck.h"
#include "both.h"
#include "suckutils.h"
#include "phrases.h"
/*------------------------------------------------------------------------*/
/* check if directory exists, if not, try to create it. */
/* return TRUE if made/exists and can write to it */
/* -----------------------------------------------------------------------*/
int checkdir(const char *dirname) {
struct stat buf;
int retval = TRUE;
if(stat(dirname, &buf)== 0) {
/* it exists */
if(!S_ISDIR(buf.st_mode)) {
error_log(ERRLOG_REPORT, sucku_phrases[0], dirname, NULL);
retval = FALSE;
}
else if(access(dirname, W_OK) != 0) {
error_log(ERRLOG_REPORT, sucku_phrases[1], dirname, NULL);
retval = FALSE;
}
}
else if(errno == ENOENT) {
/* doesn't exist, make it */
if(mkdir(dirname, (S_IRUSR | S_IWUSR | S_IXUSR)) != 0) {
MyPerror(dirname);
retval = FALSE;
}
}
else {
/* huh? */
MyPerror(dirname);
retval = FALSE;
}
return retval;
}
/*--------------------------------------------------------------*/
/* if which = FP_SET, store directory in array */
/* = FP_GET, retrieve directory and add file name */
/* = FP_GET_NOPOSTFIX, get without appending postfix */
/* = FP_GET_POSTFIX, get ONLY the postfix */
/* retval FP_SET, if valid dir, the dir, else NULL */
/* FP_GET, full path */
/* FP_GET_POSTFIX, only the postfix */
/*--------------------------------------------------------------*/
const char *full_path(int which, int dir, const char *fname) {
static char dirs[FP_NR_DIRS][PATH_MAX+1] = { N_TMPDIR, N_DATADIR, N_MSGDIR };
static char path[PATH_MAX+1]; /* static so area valid after return */
static char postfix[PATH_MAX+1] = { "\0" };
char *retptr;
int ok, i;
retptr = NULL;
switch(which) {
case FP_GET:
case FP_GET_NOPOSTFIX:
/* put the right directory as the first part of the path */
strcpy(path, dirs[dir]);
/* if it contains a dit, then change to full path */
if(path[0] == '.') {
path[0] = '\0';
if(getcwd(path, PATH_MAX) == NULL) {
MyPerror(path);
/* restore current path and pray */
/* it will work later */
strcpy(path, dirs[dir]);
}
else {
/* tack on remainder of path */
/* the 1 so skip . */
strcat(path, &dirs[dir][1]);
}
}
if(fname != NULL && fname[0] != '\0') {
i = strlen(path);
/* if nothing to put on don't do any of this */
/* put on trailing slant bar if needed */
if(path[i-1] != '/') {
path[i++] = '/';
path[i] = '\0'; /* null terminate it */
}
/* finally, put on filename */
strcpy(&path[i], fname);
if(which != FP_GET_NOPOSTFIX && postfix[0] != '\0') {
strcat(path, postfix);
}
}
retptr = path;
break;
case FP_SET_POSTFIX:
ok = TRUE;
strncpy(postfix, fname, sizeof(postfix));
break;
case FP_GET_POSTFIX:
retptr = postfix;
break;
case FP_SET:
ok = TRUE;
switch(dir) {
case FP_TMPDIR:
if(access(fname, W_OK) == -1) {
MyPerror(fname);
ok = FALSE;
}
break;
case FP_DATADIR:
if(access(fname, R_OK) == -1) {
MyPerror(fname);
ok = FALSE;
}
break;
case FP_MSGDIR: /* do_nothing, this is checked elsewhere */
break;
}
if(ok == FALSE) {
retptr = NULL;
}
else {
strncpy(dirs[dir], fname, sizeof(dirs[0]));
retptr = dirs[dir];
}
break;
}
return retptr;
}
#ifdef LOCKFILE
/*--------------------------------------------------------------*/
int do_lockfile(PMaster master) {
int retval;
FILE *f_lock;
const char *lockfile;
pid_t pid;
retval = RETVAL_OK;
lockfile = full_path(FP_GET, FP_TMPDIR, N_LOCKFILE);
if((f_lock = fopen(lockfile, "r")) != NULL) {
/* okay, let's try and see if this sucker is truly alive */
fscanf(f_lock, "%ld", (long *) &pid);
fclose(f_lock);
if(pid <= 0) {
error_log(ERRLOG_REPORT, sucku_phrases[2], lockfile, NULL);
retval = RETVAL_ERROR;
}
/* this next technique borrowed from pppd, sys-linux.c (ppp2.2.0c) */
/* if the pid doesn't exist (can't send any signal to it), then try */
/* to remove the stale PID file so can recreate it. */
else if(kill(pid, 0) == -1 && errno == ESRCH) {
/* no pid found */
if(unlink(lockfile) == 0) {
/* this isn't error so don't put in error log */
print_phrases(master->msgs, sucku_phrases[3], lockfile, NULL);
}
else {
error_log(ERRLOG_REPORT, sucku_phrases[4], lockfile, NULL);
retval = RETVAL_ERROR;
}
}
else {
error_log(ERRLOG_REPORT, sucku_phrases[5], lockfile, NULL);
retval = RETVAL_ERROR;
}
}
if(retval == RETVAL_OK) {
if((f_lock = fopen(lockfile, "w")) != NULL) {
fprintf(f_lock, "%ld", (long) getpid());
fclose(f_lock);
}
else {
error_log(ERRLOG_REPORT, sucku_phrases[6], lockfile, NULL);
retval = RETVAL_ERROR;
}
}
return retval;
}
#endif
/*-------------------------------------------------------------------------*/
int qcmp_msgid(const char *nr1, const char *nr2) {
/* return -1 if a < b, 0 if a == b, 1 if a > b */
int retval = 0;
/* cmp two article id numbers */
/* which is <xxxxxxxxxxxxxxxxx@place.org */
/* use case sensitive compares up to the @ */
/* then use case insensitive compares on the organization */
/* this is to conform to rfc822 */
if(nr1 != NULL && nr2 != NULL) {
while ( *nr1 == *nr2 && *nr1 != '\0' && *nr1 != '@') {
nr1++;
nr2++;
}
if(*nr1 == '@') {
while( tolower(*nr1) == tolower(*nr2) && *nr1 != '\0') {
nr1++;
nr2++;
}
}
if(*nr1 == *nr2 && *nr1 == '\0') {
retval = 0;
}
else if(*nr1 != *nr2) {
retval = ( *nr1 < *nr2 ) ? -1 : 1;
}
else {
/* one is longer than the other */
retval = (*nr1 == '\0') ? -1 : 1;
}
}
return retval;
}
/*------------------------------------------------------------------------------*/
int cmp_msgid(const char *nr1, const char *nr2) {
/* cmp two article id numbers */
/* which is <xxxxxxxxxxxxxxxxx@place.org */
/* use case sensitive compares up to the @ */
/* then use case insensitive compares on the organization */
/* this is to conform to rfc822 */
int retval = FALSE;
if(nr1 != NULL && nr2 != NULL) {
while ( *nr1 == *nr2 && *nr1 != '\0' && *nr1 != '@') {
nr1++;
nr2++;
}
if(*nr1 == '@') {
while( tolower(*nr1) == tolower(*nr2) && *nr1 != '\0') {
nr1++;
nr2++;
}
}
if(*nr1 == *nr2 && *nr1 == '\0') {
retval = TRUE;
}
}
return retval;
}
/*-----------------------------------------------------------------------------*/
/* move a file from one location to another */
/*-----------------------------------------------------------------------------*/
int move_file(const char *src, const char *dest) {
char block[MAXLINLEN];
FILE *fpi, *fpo;
int retval = RETVAL_OK;
size_t nrread;
/* first try the easy way */
if(src == NULL || dest == NULL) {
error_log(ERRLOG_REPORT, sucku_phrases[9], NULL);
retval = RETVAL_ERROR;
}
else if(rename(src, dest) != 0) {
if(errno != EXDEV) {
MyPerror(src);
retval = RETVAL_ERROR;
}
else {
/* can't rename, try to copy file */
if((fpi = fopen(src, "r")) == NULL) {
MyPerror(src);
retval = RETVAL_ERROR;
}
else if(( fpo = fopen(dest, "w")) == NULL) {
fclose(fpi);
MyPerror(dest);
retval = RETVAL_ERROR;
}
else {
while(retval == RETVAL_OK && (nrread = fread(block, sizeof(char), MAXLINLEN, fpi)) > 0) {
if(fwrite(block, sizeof(char), nrread, fpo) != nrread) {
error_log(ERRLOG_REPORT, sucku_phrases[7], dest, NULL);
retval = RETVAL_ERROR;
}
}
if(ferror(fpi) != 0) {
error_log(ERRLOG_REPORT, sucku_phrases[8], src, NULL) ;
}
fclose(fpi);
fclose(fpo);
}
/* now that copy is successful, nuke it */
if(retval == RETVAL_OK) {
unlink(src);
}
}
}
return retval;
}
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