1 #include<unistd.h>
2 #include<stdio.h>
3 #include<dirent.h>
4 #include<string.h>
5 #include<stdlib.h>
6 #include<sys/stat.h>
7 #include<sys/types.h>
8 #include<sys/wait.h>
9 #include<time.h>
10 FILE *fp,*fbmp,*flog;
11 struct dirent *entry;
12 struct stat statbuf;
13 unsigned short BMP=0x4D42,
14 JPG=0xD8FF,
15 PNG[4]={0x5089,0x474E,0x0A0D,0x0A1A},
16 GIF[3]={0x4947,0x3846,0x6139};
17 char path1[256],path2[256],watchdog[256],name[256];
18 struct tm *tm_ptr;
19 time_t the_time;
20
21 //判断图片头文件的结构体
22 typedef struct tagRGBQUAD
23 {
24 unsigned char Blue;// À¶É«µÄÁÁ¶È£šÖµ·¶Î§Îª0-255)
25 unsigned char Green; // ÂÌÉ«µÄÁÁ¶È£šÖµ·¶Î§Îª0-255)
26 unsigned char Red; // ºìÉ«µÄÁÁ¶È£šÖµ·¶Î§Îª0-255)
27 unsigned char Reserved;// ±£Áô£¬±ØÐëΪ0
28 } RGN;
29
30 void init()/*用于初始化程序*/
31 {
32 printf("file opened now
");
33 fp=fopen("wrg.text","w+");
34 flog=fopen("wrlog.text","w+");
35 fbmp=fopen("bmpname.text","w+");
36 }
37 void Exit()
38 {
39 printf("everything is gone
");
40 fclose(fp);
41 fclose(fbmp);
42 fclose(flog);
43 }
44 int istupian(char entry[])
45 /*返加值为
46 1 bmp;
47 2 jpg;
48 3 png;
49 4 gif;
50 */
51 {
52 FILE *fis;
53 short int i=0;
54 unsigned short pis[5];
55 int flag=0;//每次调用都进行初始化
56 if((fis=fopen(entry,"r"))==NULL)
57 printf("can not read %s
",entry);
58 fread(pis,8,1,fis);
59
60 if(pis[0]==BMP)
61 {
62 flag=1;
63 printf("it is a bmp
");
64 }
65 else if(pis[0]==JPG)
66 {
67 flag=2;
68 printf("it is a jpg
");
69 }
70 else if(PNG[0]==pis[0]&&PNG[1]==pis[1]&&PNG[2]==pis[2]&&PNG[3]==pis[3])
71 {
72 flag=3;
73 printf("it is a png
");
74 }
75 else if(GIF[0]==pis[0]&&GIF[1]==pis[1]&&GIF[2]==pis[2])
76 {
77 flag=4;
78 printf("it is a gif
");
79 }
80 return flag;
81
82
83 }
84 void wrtlog()/*将文件的路径写入路径中*/
85 {
86 printf("write to wrtlg
");
87 fprintf(fp,"%s/%s
",getcwd(NULL,1024),entry->d_name);
88 fprintf(fbmp,"%s
",entry->d_name);
89 }
90 void wrlog(char name[])// 将日记写入文件中
91 {
92 static int i=0;
93 (void)time(&the_time);
94 //tm_ptr=gmtime(&the_time);
95 if(i==0) fprintf(flog,"文件名 /状态 ／时间 ／
");
96 ++i;
97 fprintf(flog,"%s 删除 ",name);
98
99 fprintf(flog,"%s
",ctime(&the_time));
100 //fprintf(flog,"%02d:%02d:%02d:%02d:%02d:%02d
",tm_ptr->tm_year,tm_ptr->tm_mon+1,tm_ptr->tm_mday,tm_ptr->tm_hour,tm_ptr->tm_min,tm_ptr->tm_sec);
101 }
102 void printdir(char dir[])/*打印目录*/
103 {
104 DIR *dp;
105 printf("printdir ******doing now
");
106 if((dp=opendir(dir))==NULL)
107 {
108 fprintf(stderr,"cannot open directory:%s
",dir);
109 return;
110 }
111 chdir(dir);
112 while((entry=readdir(dp))!=NULL)
113 {
114 lstat(entry->d_name,&statbuf);
115 if(S_ISDIR(statbuf.st_mode))
116 {
117 if(strcmp(".",entry->d_name)==0||strcmp("..",entry->d_name)==0)
118 continue;
119 printdir(entry->d_name);
120 }
121 else
122 wrtlog();
123 }
124 chdir("..");
125 closedir(dp);
126 }
127 int bmp(char filename[])
128 {
129 FILE *fo,*fin;
130 RGN rgb,black={0,0,0,0},white={255,255,255,0};
131 char name[256]=" ";
132 unsigned char temp[14]=" ";
133 unsigned int offset=0;
134 //在文件名中添加copy_来区别原文件
135 int len=strlen(filename);
136 strncpy(name,filename,len-4);
137 strcat(name,"_copy.bmp");
138
139 if((fo=fopen(filename,"rb"))==NULL)
140 printf("can not open %s",filename);
141 if((fin=fopen(name,"wb"))==NULL)
142 printf("can not open %s",name);
143 printf("œ«ÖžÕëÒƶ¯µœÎ»ÍŒÊýŸÝµÄÆðʌλÖÃ
");
144 fseek(fo,10,0);
145 printf("¿ªÊŒ¶ÁÈ¡Æ«ÒÆÁ¿
");
146 fread(&offset,4,1,fo);
147 printf("ÏÔÊŸÆ«ÒÆλÖÃŽóС:");
148 printf("%X
",offset);
149 printf("œ«ÖžÕëÒƶ¯µœÍŒÆ¬µÄÆðʌλÖÃ
");
150 fseek(fo,0,0);
151
152
153 printf("¿ªÊŒÐŽÈëbmpÎÄŒþ
");
154 unsigned int i=1;
155 printf("Í·ÎÄŒþÐŽÈëÖÐ
");
156 while(i<=offset)
157 {
158 fread(temp,1,1,fo);
159 fwrite(temp,1,1,fin);
160 i+=1;
161 }
162 printf("ÑÕɫת»»ÖÐ
");
163 while(!feof(fo))
164 {
165 fread(&rgb,4,1,fo);
166 if((rgb.Blue+rgb.Green+rgb.Red)/3<125)
167 fwrite(&black,4,1,fin);
168 else
169 fwrite(&white,4,1,fin);
170 }
171
172 fclose(fo);
173 fclose(fin);
174 printf("͌Ƭת»»³ÉºÚ°×¶þֵ͌œáÊø");
175 return 0;
176 }
177 //硬连接
178 /*返加值为
179 1 bmp;
180 2 jpg;
181 3 png;
182 4 gif;
183 */
184 void lkbmp()
185 {
186 fseek(fp,0,0);
187 fseek(fbmp,0,0);
188 while(fscanf(fp,"%s",path1)!=EOF&&fscanf(fbmp,"%s",name)!=EOF)
189 {
190 //path2 的路径已经初始化，将文件名接到path2中，链接好后，将watchsog重新载入watchdog中
191 strcat(path2,name);
192 printf("%s",path2);
193 if(link(path1,path2)==0)
194 {
195 printf(" link is successful
");
196 }
197 else
198 printf(" link is error
");
199 //恢复母路径
200 if(istupian(path2)==1)
201 bmp(path2);
202 strcpy(path2,watchdog);
203 }
204
205 }
206 //删除非图片文件
207 void del_dir()
208 {
209 int picture=0;
210 fseek(fbmp,0,0);
211 fseek(fp,0,0);
212 if(fscanf(fbmp,"%s",name)==EOF)
213 printf("del_dir is error");
214 else while(fscanf(fp,"%s",path1)!=EOF&&fscanf(fbmp,"%s",name)!=EOF)
215 {
216 //path2 的路径已经初始化，将文件名接到path2中，链接好后，将watchsog重新载入watchdog中
217 strcat(path2,name);
218
219 if(!(picture=istupian(path2))&&unlink(path2)==0)
220 {
221 printf("unlink %s is successful
",path2);
222 wrlog(path2);
223 }
224 else
225 printf("unlink %s is error
",path2);
226 //恢复母路径
227 strcpy(path2,watchdog);
228 }
229
230 }
