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#include <HTUtils.h>
#include <LYGlobalDefs.h>
#include <LYUtils.h>
#include <LYClean.h>
#include <LYCurses.h>
#include <LYStrings.h>
#include <LYTraversal.h>
#include <LYexit.h>
#include <LYLeaks.h>
/* routines to handle special traversal feature */
PRIVATE void final_perror ARGS2(CONST char *,msg, BOOLEAN, clean_flag)
{
int saved_errno = errno;
if (LYCursesON) {
if (clean_flag)
cleanup();
else
stop_curses();
}
set_errno(saved_errno);
perror(msg);
}
PRIVATE void exit_with_perror ARGS1(CONST char *,msg)
{
final_perror(msg, TRUE);
exit_immediately(EXIT_FAILURE);
}
PUBLIC BOOLEAN lookup ARGS1(char *,target)
{
FILE *ifp;
char *buffer = NULL;
char *line = NULL;
int result = FALSE;
if ((ifp = fopen(TRAVERSE_FILE, TXT_R)) == NULL) {
if ((ifp = LYNewTxtFile(TRAVERSE_FILE)) == NULL) {
exit_with_perror(CANNOT_OPEN_TRAV_FILE);
} else {
LYCloseOutput(ifp);
return(FALSE);
}
}
HTSprintf0(&line, "%s\n", target);
while (LYSafeGets(&buffer, ifp) != NULL) {
if (STREQ(line,buffer)) {
result = TRUE;
break;
}
} /* end while */
FREE(line);
FREE(buffer);
LYCloseInput(ifp);
return (BOOL) (result);
}
PUBLIC void add_to_table ARGS1(char *,target)
{
FILE *ifp;
if ((ifp = LYAppendToTxtFile(TRAVERSE_FILE)) == NULL) {
exit_with_perror(CANNOT_OPEN_TRAV_FILE);
}
fprintf(ifp,"%s\n",target);
LYCloseOutput(ifp);
}
PUBLIC void add_to_traverse_list ARGS2(char *,fname, char *,prev_link_name)
{
FILE *ifp;
if ((ifp = LYAppendToTxtFile(TRAVERSE_FOUND_FILE)) == NULL) {
exit_with_perror(CANNOT_OPEN_TRAF_FILE);
}
fprintf(ifp,"%s\t%s\n",fname, prev_link_name);
LYCloseOutput(ifp);
}
PUBLIC void dump_traversal_history NOARGS
{
int x;
FILE *ifp;
if (nhist <= 0)
return;
if ((ifp = LYAppendToTxtFile(TRAVERSE_FILE)) == NULL) {
final_perror(CANNOT_OPEN_TRAV_FILE, FALSE);
return;
}
fprintf(ifp, "\n\n%s\n\n\t %s\n\n",
TRAV_WAS_INTERRUPTED,
gettext("here is a list of the history stack so that you may rebuild"));
for (x = nhist-1; x >= 0; x--) {
fprintf(ifp, "%s\t%s\n", HDOC(x).title, HDOC(x).address);
}
LYCloseOutput(ifp);
}
PUBLIC void add_to_reject_list ARGS1(char *,target)
{
FILE *ifp;
if ((ifp = LYAppendToTxtFile(TRAVERSE_REJECT_FILE)) == NULL) {
exit_with_perror(CANNOT_OPEN_REJ_FILE);
}
fprintf(ifp,"%s\n",target);
LYCloseOutput(ifp);
}
/* there need not be a reject file, so if it doesn't open, just return
FALSE, meaning "target not in reject file" If the last character in
a line in a reject file is "*", then also reject if target matches up to
that point in the string
Blank lines are ignored
Lines that contain just a * are allowed, but since they mean "reject
everything" it shouldn't come up much!
*/
PUBLIC BOOLEAN lookup_reject ARGS1(char *,target)
{
FILE *ifp;
char *buffer = NULL;
char *line = NULL;
int len;
int result = FALSE;
if ((ifp = fopen(TRAVERSE_REJECT_FILE, TXT_R)) == NULL){
return(FALSE);
}
HTSprintf0(&line, "%s\n", target);
while (LYSafeGets(&buffer, ifp) != NULL && !result) {
LYTrimTrailing(buffer);
len = strlen(buffer);
if (len > 0) { /* if not an empty line */
if (buffer[len-1] == '*') {
/* if last char is * and the rest of the chars match */
if ((len == 1) || (strncmp(line,buffer,len - 1) == 0)) {
result = TRUE;
}
} else {
if (STREQ(line,buffer)) {
result = TRUE;
}
}
}
} /* end while loop over the file */
FREE(buffer);
FREE(line);
LYCloseInput(ifp);
return (BOOL) (result);
}
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