在项目中我定义了一个结构体数组，头文件如下：
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#ifndef MY_TABLE_STRUCT_H#define MY_TABLE_STRUCT_H#define POLICY_UTIL_ARRAY_LENGTH 256*64#define ARRAY_SIZE 256long saved_policy_id[10];long saved_udp_allow_IP_ID[10];long save_log_ID[10];/*与日志审计相关的文件路径定义*/#define SYSTEM_LOG "/tmp/log/system.log"#define HTTP_LOG "/tmp/log/http.log"#define SMTP_LOG "/tmp/log/smtp.log"#define POP3_LOG "/tmp/log/pop3.log"#define SYSTEM_INTERMEDIARY_LOG "/tmp/log/system_intermediary.log"#define HTTP_INTERMEDIARY_LOG "/tmp/log/http_intermediary.log"#define SMTP_INTERMEDIARY_LOG "/tmp/log/smtp_intermediary.log"#define POP3_INTERMEDIARY_LOG "/tmp/log/pop3_intermediary.log"typedef struct{ int used; //0 for unused int AppID; /* 00 "系统", 01 "HTTP应用", 02 "SMTP应用", 03 "POP3应用", 04 "FTP应用", 05 "TELNET应用", 06 "NULL ", 07 "用户自定义应用", 08 "TCP空白协议", 09 "UDP应用", 0a "ORACLE数据库应用", 0b "SQL Server 数据库应用", 0c "邮件服务器与邮件服务器应用", */ char SourceIP[20]; short SourcePort; char DestIP[20]; short DestPort; char SourceType; //I for inner;O for outter char IsDestProxyMode; short MaxConn; char IsWorking; // 'Y' for "自动启用,现启用" //'N' for "自动启用,现停用" //'U' for "手动启用,现停用" //'W' for "手动启用,现启用" char IsAuth; // 0 for no auth // 1 for auth char name[20]; UINT16 InnerPort; //for udp UINT16 OuterPort; char IsAllowed; //安全策略黑白指示 // 'Y' for 白 // 'N' for 黑 char FromTime[8][8]; char ToTime[8][8]; char WeekDay[8][8]; //for udp allowed ip unsigned int inner_udp_ip[256]; unsigned int outer_udp_ip[256]; //for tcp allowed ip struct IP { char ip[255]; int black_white; } allowed_ip[256]; struct POLICY { long p_id; short type; char IsWorking; char p_content[255]; char IsAllowed; } policy[64]; }TABLE_CHANNEL;TABLE_CHANNEL table_channels[ARRAY_SIZE];#endif |
将结构体数组中的数据保存到文件中，实现函数如下:
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void chn_write_file(){ FILE *fp; int i; DO_LOG("chn_write_file():write to the file start...
"); fp=fopen("/tmp/data/db_file/tcp_file","wb"); if(fp==NULL) { printf("file /tmp/udp_chn open error
"); return; } //for(i=0;i<256;i++) //fwrite(&table_channels[i],sizeof(TABLE_CHANNEL),1,fp);//把内存中的信息写入到文件中去 fwrite(table_channels, sizeof(TABLE_CHANNEL), 256, fp); fclose(fp); DO_LOG("chn_write_file():write to the file end...
");} |
从文件中读取数据存储到结构体数组中，实现函数如下：
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void chn_read_file(){ MY_DEBUG_LOG("chn_read_file():read from the file start...
"); DO_LOG("chn_read_file():read from the file start...
"); FILE *fp; int i, j; fp= fopen("/tmp/data/db_file/tcp_file", "rb"); if(fp == NULL) { DO_LOG("chn_read_file():open file failed, because:%s!
", strerror(errno)); return ; } /*for(i = 0; i< 256; i++) { fread(&table_channels[i], sizeof(TABLE_CHANNEL), 1, fp); }*/ fread(table_channels, sizeof(TABLE_CHANNEL), 256, fp); /*****打印结构体数组中的数据*******/ MY_DEBUG_LOG("chn_read_file(): The informations of approuteways bellows:
"); for(i =0; i<256; i++) { if(table_channels[i].used == 0) { continue; } MY_DEBUG_LOG("[ReadFile]:ID:%d, used:%d, AppID:%d, SourceIP:%s, SourcePort:%d, DestIP:%s, DestPort:%d, SourceType:%c, IsDestProxyMode:%c, MaxConn:%d, IsWorking:%c, IsAuth:%c, InnerPort:%d, OuterPort:%d, IsAllowed:%c, name:%s!
", i, table_channels[i].used, table_channels[i].AppID,table_channels[i].SourceIP,table_channels[i].SourcePort, table_channels[i].DestIP, table_channels[i].DestPort, table_channels[i].SourceType, table_channels[i].IsDestProxyMode, table_channels[i].MaxConn, table_channels[i].IsWorking,table_channels[i].IsAuth,table_channels[i].InnerPort, table_channels[i].OuterPort,table_channels[i].IsAllowed,table_channels[i].name); } MY_DEBUG_LOG("chn_read_file(): The informations of allowd time bellows:
"); for(i=0; i<256; i++) { if(table_channels[i].used == 0) { continue; } for(j=0; j<8; j++) { if(table_channels[i].FromTime[j][0] == 0) { continue; } if(table_channels[i].ToTime[j][0] == 0) { continue; } if(table_channels[i].WeekDay[j][0] == 0) { continue; } MY_DEBUG_LOG("chn_read_file():ID:%d,FormTime:%s,ToTime:%s,WeekDay:%s
", i,&table_channels[i].FromTime[j][0], &table_channels[i].ToTime[j][0], &table_channels[i].WeekDay[j][0]); } } MY_DEBUG_LOG("chn_read_file(): The informations of allowd IPs bellows:
"); for(i=0; i<256; i++) { if(table_channels[i].used == 0) { continue; } for(j=0; j<256; j++) { if(table_channels[i].allowed_ip[j].ip[0] ==0) { continue; } if(table_channels[i].allowed_ip[j].black_white == 0) { MY_DEBUG_LOG("chn_read_file():ID:%d, ip %s, black_white:%d
", i, table_channels[i].allowed_ip[j].ip, table_channels[i].allowed_ip[j].black_white); } } } MY_DEBUG_LOG("chn_read_file(): The informations of allowd users bellows:
"); for(i=0; i<256; i++) { if(table_channels[i].used == 0) { continue; } for(j=0; j<256; j++) { if(table_channels[i].allowed_ip[j].ip[0] ==0) { continue; } if(table_channels[i].allowed_ip[j].black_white == 1) { MY_DEBUG_LOG("chn_read_file():ID:%d, users %s, black_white:%d
", i, table_channels[i].allowed_ip[j].ip, table_channels[i].allowed_ip[j].black_white); } } } MY_DEBUG_LOG("chn_read_file(): The informations of policies bellows:
"); for(i=0; i<256; i++) { if(table_channels[i].used == 0) { continue; } for(j =0 ; j <64; j++) { if(table_channels[i].policy[j].type == 0) { continue; } MY_DEBUG_LOG("[ReadFile]:ID:%d, AppID:%d, used:%d, policy_id:%d , type:%x, IsWorking:%c, p_content:%s, IsAllowed:%c.
", i,table_channels[i].AppID,table_channels[i].used,table_channels[i].policy[j].p_id,table_channels[i].policy[j].type, table_channels[i].policy[j].IsWorking,table_channels[i].policy[j].p_content, table_channels[i].policy[j].IsAllowed); } } fclose(fp); MY_DEBUG_LOG("chn_read_file():read from the file start end...
"); } |
现在出现问题，请教网上各位高手：
在一个程序中可以正确执行上面的两个操作，并用日志的形式打印数据，是正确的；可是在其它地方调用void chn_read_file()函数时候，并用日志形式打印数据，却显示的是错误的数据（具体错误：allowed_ip结构体，和policy结构体中的数据是错误的，随机生成的，也就是没从文件中正确读出来）函数我用的一样，为什么会出现这种情况？