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smthBBS代码突然不能用telnet方式发文[求救]

1 周前镜像同步2 回复

转信站: BYR!news.happynet.org!news.newsmth.org!NEWSMTH 我们站用smthbbs 2004/01/19（INSTALL里面的日期）。昨天开始，突然发现telnet方式下无法直接发文，但是可以re文。 web下没有问题。发文时输入标题，回车，再回车，就直接退出到版面文章列表了。跟踪了一下，发现bbs.c里post_article() 里 aborted = vedit(filepath, true, &eff_size, NULL); 返回-1, 后面就退出了函数post_article() 。一直跟下去，发现stuff.c里， 957 int safe_mmapfile_handle(int fd, int prot, int flag, void **ret_ptr, off_t * size) 958 { 959 struct stat st; 960 961 *ret_ptr = MAP_FAILED; 962 if (fd < 0) 963 return 0; 964 if (fstat(fd, &st) < 0) { 965 close(fd); 966 return 0; 967 } 968 if (!S_ISREG(st.st_mode)) { 969 close(fd); 970 return 0; 971 } 972 if (st.st_size < 0) { 973 close(fd); 974 return 0; 975 } 976 *ret_ptr = mmap(NULL, st.st_size, prot, flag, fd, 0); 977 if (*ret_ptr == MAP_FAILED) { 978 return 0; 979 } 980 /* 981 * signal(SIGSEGV,sigbus); 982 */ 983 *size = st.st_size; 984 return 1; 985 } 在976行处返回-1，mmap() 失败了。 Re文的时候没有问题。mmap返回-1229479936。以下是gdb的调试的一些信息，不知道有没有用： Breakpoint 2, safe_mmapfile_handle (fd=3, prot=1, flag=1, ret_ptr=0xbfc80f0c, size=0xbfc80f08) at stuff.c:976 976 *ret_ptr = mmap(NULL, st.st_size, prot, flag, fd, 0); (gdb) where #0 safe_mmapfile_handle (fd=3, prot=1, flag=1, ret_ptr=0xbfc80f0c, size=0xbfc80f08) at stuff.c:976 #1 0x08091321 in insert_from_fp (fp=0x95c9d60, attach_length=0x0) at edit.c:669 #2 0x080914f3 in read_file (filename=0xbfc816b0 "boards/Announce/M.1135683249.m0", attach_length=0x0) at edit.c:732 #3 0x08094109 in raw_vedit (filename=0xbfc816b0 "boards/Announce/M.1135683249.m0", saveheader=1, headlines=0, eff_size=0xbfc813f0, pattachpos=0xbfc80fc8) at edit.c:2041 #4 0x0809438a in vedit (filename=0xbfc816b0 "boards/Announce/M.1135683249.m0", saveheader=1, eff_size=0xbfc813f0, pattachpos=0x0) at edit.c:2120 #5 0x08064040 in post_article (conf=0xbfc81b10, q_file=0x8107a1d "", re_file=0x0) at bbs.c:2409 #6 0x08062b10 in do_post (conf=0xbfc81b10, fileinfo=0x95c8898, extraarg=0x0) at bbs.c:1919 #7 0x080db7c5 in read_key () #8 0x080b572c in do_select_internal () #9 0x080b57b3 in list_select () #10 0x080b5ade in list_select_loop () #11 0x080dc8b6 in new_i_read () #12 0x0806b32d in Read () at bbs.c:5434 #13 0x080ad181 in fav_onselect () #14 0x080b5274 in do_select_internal () #15 0x080b591c in list_select () #16 0x080b5ade in list_select_loop () #17 0x080ae947 in choose_board () #18 0x080aeba4 in FavBoard () #19 0x08084a1a in domenu () #20 0x080bac2d in main_bbs () #21 0x080b4381 in bbs_main () #22 0x080b44c5 in bbs_standalone_main () #23 0x080b460b in main () (gdb) print st.st_size $1 = 0 (gdb) print prot $2 = 1 (gdb) print flag $3 = 1 (gdb) print fd $4 = 3 (gdb) print st $5 = {st_dev = 5634, __pad1 = 0, st_ino = 1269020, st_mode = 33184, st_nlink = 1, st_uid = 501, st_gid = 501, st_rdev = 0, __pad2 = 0, st_size = 0, st_blksize = 4096, st_blocks = 0, st_atim = { tv_sec = 1135683250, tv_nsec = 0}, st_mtim = {tv_sec = 1135683250, tv_nsec = 0}, st_ctim = {tv_sec = 1135683250, tv_nsec = 0}, __unused4 = 0, __unused5 = 0} (gdb) 重新启动了系统，包括重启机器都没有解决问题。请教高手！多谢各位了~

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