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authorin2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>2002-06-30 22:33:14 +0800
committerin2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>2002-06-30 22:33:14 +0800
commit0a34c08fb3e5c478ee3c4f3b5475df12a986deb2 (patch)
treed926e4daf6e55513ef18e242baf8d3462a1b4890 /mbbsd/passwd.c
parent12cabe3a7252d5f5c8267c77afd94dd802b46a5e (diff)
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not using mmap for .PASSWD
git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@392 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
Diffstat (limited to 'mbbsd/passwd.c')
-rw-r--r--mbbsd/passwd.c79
1 files changed, 32 insertions, 47 deletions
diff --git a/mbbsd/passwd.c b/mbbsd/passwd.c
index cfc7361a..46ea1529 100644
--- a/mbbsd/passwd.c
+++ b/mbbsd/passwd.c
@@ -1,8 +1,6 @@
-/* $Id: passwd.c,v 1.2 2002/06/04 13:08:34 in2 Exp $ */
+/* $Id: passwd.c,v 1.3 2002/06/30 14:33:14 in2 Exp $ */
#include "bbs.h"
-static userec_t *passwd_image = NULL;
-static int passwd_image_size;
static int semid = -1;
#ifndef SEM_R
@@ -22,59 +20,42 @@ union semun {
};
#endif
+int PASSWDfd;
int passwd_mmap() {
- int fd;
-
- fd = open(fn_passwd, O_RDWR);
- if(fd > 0)
- {
- struct stat st;
-
- fstat(fd, &st);
- passwd_image_size = st.st_size;
- passwd_image = mmap(NULL, passwd_image_size,
- PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
- if(passwd_image == (userec_t *)-1) {
- perror("mmap");
- return -1;
- }
-/* rocker 011018: after success get mmap, close file descript */
- close (fd);
-
- semid = semget(PASSWDSEM_KEY, 1, SEM_R | SEM_A | IPC_CREAT | IPC_EXCL);
- if(semid == -1) {
- if(errno == EEXIST) {
- semid = semget(PASSWDSEM_KEY, 1, SEM_R | SEM_A);
- if(semid == -1) {
- perror("semget");
- exit(1);
- }
- } else {
+ if( (PASSWDfd = open(fn_passwd, O_RDWR)) < 0 || PASSWDfd <= 1 )
+ return -1;
+ semid = semget(PASSWDSEM_KEY, 1, SEM_R | SEM_A | IPC_CREAT | IPC_EXCL);
+ if(semid == -1) {
+ if(errno == EEXIST) {
+ semid = semget(PASSWDSEM_KEY, 1, SEM_R | SEM_A);
+ if(semid == -1) {
perror("semget");
exit(1);
}
} else {
- union semun s;
-
- s.val = 1;
- if(semctl(semid, 0, SETVAL, s) == -1) {
- perror("semctl");
- exit(1);
- }
+ perror("semget");
+ exit(1);
}
} else {
- perror(fn_passwd);
- return -1;
+ union semun s;
+
+ s.val = 1;
+ if(semctl(semid, 0, SETVAL, s) == -1) {
+ perror("semctl");
+ exit(1);
+ }
}
+
return 0;
}
int passwd_update_money(int num) {
- int money;
+ userec_t user;
if(num < 1 || num > MAX_USERS)
return -1;
- money = moneyof(num);
- memcpy(&passwd_image[num - 1].money, &money, sizeof(int));
+ passwd_query(num, &user);
+ user.money = moneyof(num);
+ passwd_update(num, &user);
return 0;
}
@@ -82,23 +63,27 @@ int passwd_update(int num, userec_t *buf) {
if(num < 1 || num > MAX_USERS)
return -1;
buf->money = moneyof(num);
- memcpy(&passwd_image[num - 1], buf, sizeof(userec_t));
+ lseek(PASSWDfd, sizeof(userec_t) * (num - 1), SEEK_SET);
+ write(PASSWDfd, buf, sizeof(userec_t));
return 0;
}
int passwd_query(int num, userec_t *buf) {
if(num < 1 || num > MAX_USERS)
return -1;
- memcpy(buf, &passwd_image[num - 1], sizeof(userec_t));
+ lseek(PASSWDfd, sizeof(userec_t) * (num - 1), SEEK_SET);
+ read(PASSWDfd, buf, sizeof(userec_t));
return 0;
}
int passwd_apply(int (*fptr)(userec_t *)) {
int i;
-
- for(i = 0; i < MAX_USERS; i++)
- if((*fptr)(&passwd_image[i]) == QUIT)
+ userec_t user;
+ for(i = 0; i < MAX_USERS; i++){
+ passwd_query(i + 1, &user);
+ if((*fptr)(&user) == QUIT)
return QUIT;
+ }
return 0;
}