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-rw-r--r--mbbsd/board.c90
1 files changed, 56 insertions, 34 deletions
diff --git a/mbbsd/board.c b/mbbsd/board.c
index 7351d1e9..5307fa04 100644
--- a/mbbsd/board.c
+++ b/mbbsd/board.c
@@ -1,9 +1,15 @@
-/* $Id: board.c,v 1.133 2003/07/20 00:55:34 in2 Exp $ */
+/* $Id$ */
#include "bbs.h"
#define BRC_STRLEN 15 /* Length of board name */
-#define BRC_MAXSIZE 24576
+#define BRC_MAXSIZE 24576 /* Effective size of brc rc file */
#define BRC_ITEMSIZE (BRC_STRLEN + 1 + BRC_MAXNUM * sizeof( int ))
-#define BRC_MAXNUM 80
+ /* Maximum size of each record */
+#define BRC_MAXNUM 80 /* Upper bound of brc_num, size of brc_list */
+
+/* brc rc file form:
+ * board_name 15 bytes
+ * brc_num 1 byte, binary integer
+ * brc_list brc_num * sizeof(int) bytes, brc_num binary integer(s) */
static char *
brc_getrecord(char *ptr, char *name, int *pnum, int *list)
@@ -11,44 +17,49 @@ brc_getrecord(char *ptr, char *name, int *pnum, int *list)
int num;
char *tmp;
- strncpy(name, ptr, BRC_STRLEN);
+ strncpy(name, ptr, BRC_STRLEN); /* board_name */
ptr += BRC_STRLEN;
- num = (*ptr++) & 0xff;
- tmp = ptr + num * sizeof(int);
- if (num > BRC_MAXNUM)
+ num = (*ptr++) & 0xff; /* brc_num */
+ tmp = ptr + num * sizeof(int); /* end of this record */
+ if (num > BRC_MAXNUM) /* FIXME if this happens... may crash next time. */
num = BRC_MAXNUM;
*pnum = num;
- memcpy(list, ptr, num * sizeof(int));
+ memcpy(list, ptr, num * sizeof(int)); /* brc_list */
return tmp;
}
static time_t brc_expire_time;
+ /* Will be set to the time one year before login. All the files created
+ * before then will be recognized read. */
static char *
-brc_putrecord(char *ptr, char *name, int num, int *list)
+brc_putrecord(char *ptr, const char *name, int num, const int *list)
{
if (num > 0 && list[0] > brc_expire_time) {
if (num > BRC_MAXNUM)
num = BRC_MAXNUM;
while (num > 1 && list[num - 1] < brc_expire_time)
- num--;
+ num--; /* not to write the times before brc_expire_time */
- strncpy(ptr, name, BRC_STRLEN);
+ strncpy(ptr, name, BRC_STRLEN); /* write in board_name */
ptr += BRC_STRLEN;
- *ptr++ = num;
- memcpy(ptr, list, num * sizeof(int));
+ *ptr++ = num; /* write in brc_num */
+ memcpy(ptr, list, num * sizeof(int)); /* write in brc_list */
ptr += num * sizeof(int);
}
return ptr;
}
static int brc_changed = 0;
+/* The below two will be filled by read_brc_buf() and brc_update() */
static char brc_buf[BRC_MAXSIZE];
-static char brc_name[BRC_STRLEN];
-static char *fn_boardrc = ".boardrc";
static int brc_size;
+//static char brc_name[BRC_STRLEN]; /* board name of the brc data */
+static char * const fn_boardrc = ".boardrc";
+/* unused variable
char *brc_buf_addr=brc_buf;
+*/
void
brc_update()
@@ -62,7 +73,7 @@ brc_update()
ptr = brc_buf;
if (brc_num > 0)
- ptr = brc_putrecord(ptr, brc_name, brc_num, brc_list);
+ ptr = brc_putrecord(ptr, currboard, brc_num, brc_list);
setuserfile(dirfile, fn_boardrc);
if ((fd = open(dirfile, O_RDONLY)) != -1) {
@@ -74,8 +85,10 @@ brc_update()
tmp = tmp_buf;
while (tmp < &tmp_buf[tmp_size] && (*tmp >= ' ' && *tmp <= 'z')) {
+ /* for each available records */
tmp = brc_getrecord(tmp, tmp_name, &tmp_num, tmp_list);
if (strncmp(tmp_name, currboard, BRC_STRLEN))
+ /* not overwrite the currend record */
ptr = brc_putrecord(ptr, tmp_name, tmp_num, tmp_list);
}
brc_size = (int)(ptr - brc_buf);
@@ -107,13 +120,14 @@ read_brc_buf()
}
int
-brc_initial(char *boardname)
+brc_initial(const char *boardname)
{
char *ptr;
+ char tmp_name[BRC_STRLEN];
if (strcmp(currboard, boardname) == 0) {
return brc_num;
}
- brc_update();
+ brc_update(); /* write back first */
strlcpy(currboard, boardname, sizeof(currboard));
currbid = getbnum(currboard);
currbrdattr = bcache[currbid - 1].brdattr;
@@ -121,17 +135,20 @@ brc_initial(char *boardname)
ptr = brc_buf;
while (ptr < &brc_buf[brc_size] && (*ptr >= ' ' && *ptr <= 'z')) {
- ptr = brc_getrecord(ptr, brc_name, &brc_num, brc_list);
- if (strncmp(brc_name, currboard, BRC_STRLEN) == 0)
+ /* for each available records */
+ ptr = brc_getrecord(ptr, tmp_name, &brc_num, brc_list);
+ if (strncmp(tmp_name, currboard, BRC_STRLEN) == 0)
return brc_num;
}
- strncpy(brc_name, boardname, BRC_STRLEN);
+ strncpy(tmp_name, boardname, BRC_STRLEN);
brc_num = brc_list[0] = 1;
+ /* We don't have to set brc_changed to 0 here, since brc_update() already
+ * did that. */
return 0;
}
void
-brc_addlist(char *fname)
+brc_addlist(const char *fname)
{
int ftime, n, i;
@@ -139,46 +156,51 @@ brc_addlist(char *fname)
return;
ftime = atoi(&fname[2]);
- if (ftime <= brc_expire_time
+ if (ftime <= brc_expire_time /* too old, don't do any thing */
/* || fname[0] != 'M' || fname[1] != '.' */ ) {
return;
}
- if (brc_num <= 0) {
- brc_list[brc_num++] = ftime;
+ if (brc_num <= 0) { /* uninitialized */
+ brc_list[0] = ftime;
+ brc_num = 1;
brc_changed = 1;
return;
}
- if ((brc_num == 1) && (ftime < brc_list[0]))
+ if ((brc_num == 1) && (ftime < brc_list[0])) /* most when after 'v' */
return;
- for (n = 0; n < brc_num; n++) {
+ for (n = 0; n < brc_num; n++) { /* using linear search */
if (ftime == brc_list[n]) {
return;
} else if (ftime > brc_list[n]) {
if (brc_num < BRC_MAXNUM)
brc_num++;
+ /* insert ftime in to brc_list */
for (i = brc_num - 1; --i >= n; brc_list[i + 1] = brc_list[i]);
brc_list[n] = ftime;
brc_changed = 1;
return;
}
}
+ /* (by scw) These lines are no used. Since if it reachs here, this file
+ * is already been labeled read.
if (brc_num < BRC_MAXNUM) {
brc_list[brc_num++] = ftime;
brc_changed = 1;
}
+ */
}
static int
-brc_unread_time(time_t ftime, int bnum, int *blist)
+brc_unread_time(time_t ftime, int bnum, const int *blist)
{
int n;
- if (ftime <= brc_expire_time)
+ if (ftime <= brc_expire_time) /* too old */
return 0;
if (brc_num <= 0)
return 1;
- for (n = 0; n < bnum; n++) {
+ for (n = 0; n < bnum; n++) { /* using linear search */
if (ftime > blist[n])
return 1;
else if (ftime == blist[n])
@@ -188,18 +210,18 @@ brc_unread_time(time_t ftime, int bnum, int *blist)
}
int
-brc_unread(char *fname, int bnum, int *blist)
+brc_unread(const char *fname, int bnum, const int *blist)
{
int ftime, n;
- ftime = atoi(&fname[2]);
+ ftime = atoi(&fname[2]); /* this will get the time of the file created */
- if (ftime <= brc_expire_time)
+ if (ftime <= brc_expire_time) /* too old */
return 0;
if (brc_num <= 0)
return 1;
- for (n = 0; n < bnum; n++) {
+ for (n = 0; n < bnum; n++) { /* using linear search */
if (ftime > blist[n])
return 1;
else if (ftime == blist[n])
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