void do_helpfiles(CHAR_DATA *ch, char *argument) {
if (!is_staff(ch)) {
do_function(ch, &do_help, argument);
return;
}
FILE *fhelp = fopen("../data/help.txt", "r");
if (!fhelp) {
send_to_char("Unable to read helpfiles list.\r\n", ch);
bug("helpfiles: Unable to read help.txt", 0);
return;
}
long flen;
const size_t MAX_LINE_LENGTH = 50;
char arg[27648], helpfile[27648];
argument = one_argument(argument, arg);
strcpy(helpfile, argument);
if (!str_cmp(arg, "done") || !str_cmp(arg, "clear")) {
if (!strlen(helpfile)) {
send_to_char("Syntax: helpfiles done helpfile\r\n", ch);
return;
}
FILE *ftemp = fopen("../data/help_temp.txt", "w");
if (!ftemp) {
send_to_char("Unable to write temp list file.\r\n", ch);
bug("helpfiles: Unable to write to help_temp.txt", 0);
fclose(fhelp);
return;
}
char buf[MAX_LINE_LENGTH], line_helpfile[32];
int found = FALSE;
while (fgets(buf, MAX_LINE_LENGTH, fhelp)) {
size_t len = strlen(buf);
int match = FALSE;
// Trim newline and trailing whitespace
if (len > 0 && buf[len-1] == '\n')
buf[--len] = '\0';
while (len > 0 && isspace(buf[len-1]))
buf[--len] = '\0';
// Move a pointer from the end until it reaches the colon, then move back to the first letter
char *ptr = buf + len - 1;
while (ptr >= buf && *ptr != ':')
ptr--;
ptr += 2;
// Copy the last word as the line's helpfile
strncpy(line_helpfile, ptr, buf+len-ptr);
line_helpfile[buf+len-ptr] = '\0';
match = !str_cmp(line_helpfile, helpfile);
if (match && !found) {
printf_to_char(ch, "Great work! Removing all instances of %s from the helpfile list.\r\n", helpfile);
found = TRUE;
}
else if (!match) {
strncat(buf, "\n", sizeof(buf) - strlen(buf) - 1);
fputs(buf, ftemp);
}
}
fclose(ftemp);
fclose(fhelp);
if (found) {
if (remove(HELP_FILE)) {
send_to_char("Unable to update helpfile list.\r\n", ch);
bug("helpfile: Can't delete help.txt", 0);
return;
}
if (rename("../data/help_temp.txt", "../data/help.txt")) {
send_to_char("Unable to update helpfile list.\r\n", ch);
bug("helpfile: Can't rename help_temp.txt to help.txt", 0);
return;
}
}
else
send_to_char("Great work on finishing a new helpfile! It currently wasn't on the list.\r\n", ch);
}
else {
char *buf = 0;
fseek(fhelp, 0, SEEK_END);
flen = ftell(fhelp);
fseek(fhelp, 0, SEEK_SET);
buf = (char*)malloc(flen+1);
size_t nread = fread(buf, 1, flen, fhelp);
buf[nread] = '\0';
if (!nread) {
send_to_char("Unable to read helpfiles list.\r\n", ch);
bug("helpfiles: Unable to read help.txt", 0);
}
else
page_to_char(buf, ch);
fclose(fhelp);
}
}
```
int delete_helpfile_from_list(FILE *fhelp, char *helpfile) {
if (!strlen(helpfile))
return FALSE;
FILE *ftemp = fopen("../data/help_temp.txt", "w");
if (!ftemp) {
bug("helpfiles: Unable to write to help_temp.txt", 0);
return -1;
}
const size_t MAX_LINE_LENGTH = 50;
char buf[MAX_LINE_LENGTH], line_helpfile[32];
int found = FALSE;
while (fgets(buf, MAX_LINE_LENGTH, fhelp)) {
size_t len = strlen(buf);
int match = FALSE;
// Trim newline and trailing whitespace
if (len > 0 && buf[len-1] == '\n')
buf[--len] = '\0';
while (len > 0 && isspace(buf[len-1]))
buf[--len] = '\0';
// Move a pointer from the end until it reaches the colon, then move back to the first letter
char *ptr = buf + len - 1;
while (ptr >= buf && *ptr != ':')
ptr--;
ptr += 2;
// Copy the last word as the line's helpfile
strncpy(line_helpfile, ptr, buf+len-ptr);
line_helpfile[buf+len-ptr] = '\0';
match = !str_cmp(line_helpfile, helpfile);
if (match && !found)
found = TRUE;
else if (!match) {
strncat(buf, "\n", sizeof(buf) - strlen(buf) - 1);
fputs(buf, ftemp);
}
}
fclose(ftemp);
if (found) {
if (remove(HELP_FILE)) {
bug("helpfile: Can't delete help.txt", 0);
return -1;
}
if (rename("../data/help_temp.txt", HELP_FILE)) {
bug("helpfile: Can't rename help_temp.txt to help.txt", 0);
return -1;
}
}
return found;
}
void do_helpfiles(CHAR_DATA *ch, char *argument) {
if (!is_staff(ch)) {
do_function(ch, &do_help, argument);
return;
}
FILE *fhelp = fopen(HELP_FILE, "r");
if (!fhelp) {
send_to_char("Unable to read helpfiles list.\r\n", ch);
bug("helpfiles: Unable to read help.txt", 0);
return;
}
char arg[MSL], helpfile[MSL];
argument = one_argument(argument, arg);
strcpy(helpfile, argument);
if (!str_cmp(arg, "done") || !str_cmp(arg, "clear")) {
int found = delete_helpfile_from_list(fhelp, helpfile);
if (found == -1)
send_to_char("Unable to add missing helpfile to list.\r\n", ch);
else if (found)
printf_to_char(ch, "Great work! Removing all instances of %s from the helpfile list.\r\n", helpfile);
else
send_to_char("Great work on finishing a new helpfile! It currently wasn't on the list.\r\n", ch);
}
else {
char *buf;
long flen;
fseek(fhelp, 0, SEEK_END);
flen = ftell(fhelp);
fseek(fhelp, 0, SEEK_SET);
buf = (char*)malloc(flen+1);
size_t nread = fread(buf, 1, flen, fhelp);
buf[nread] = '\0';
if (!nread) {
send_to_char("Unable to read helpfiles list.\r\n", ch);
bug("helpfiles: Unable to read help.txt", 0);
}
else
page_to_char(buf, ch);
}
fclose(fhelp);
}
