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#include

#include

#include

#include

#include

#define PATH1 "/proc/meminfo"

#define PATH2 "/proc/cpuinfo"

#define PATH3 "/proc/version"

#define PATH4 "/proc/bus/usb/devices"

struct Mem

{

char *n;

int data;

};

void Exit()

{

exit(1);

}

char* montage(char *a, char *b) {

char *temp = malloc(strlen(a) + strlen(b) + 1);

if (temp == NULL)

exit(1);

strcpy(temp, a);

strcat(temp, b);

return temp;

}

void ShowCpuInfo()

{

FILE *fp;

int n;

char c;

char filename[] = PATH2;

if((fp = fopen(filename,"r")) == NULL)

{

printf("cannot open file %s.\n",filename);

exit(1);

}

while((c=fgetc(fp))!=EOF)

{

putchar(c);

}

printf("\n");

fclose(fp);

printf("请输入0返回主菜单\n");

scanf("%d",&n);

if(n==0)

{ system("clear");

main();

}

}

void ShowBusInfo()

{

FILE *fp;

int n;

char c;

char filename[] = PATH4;

if((fp = fopen(filename,"r")) == NULL)

{

printf("cannot open file %s.\n",filename);

exit(1);

}

while((c=fgetc(fp))!=EOF)

{

putchar(c);

}

printf("\n");

fclose(fp);

printf("请输入0返回主菜单\n");

scanf("%d",&n);

if(n==0)

{

system("clear");

main();

}

}

void ShowSoftwareInfo()

{

FILE *fp;

int n;

char c;

char filename[] = PATH3;

if((fp = fopen(filename,"r")) == NULL)

{

printf("cannot open file %s.\n",filename);

exit(1);

}

while((c=fgetc(fp))!=EOF)

{

putchar(c);

}

printf("\n");

fclose(fp);

printf("请输入0返回主菜单\n");

scanf("%d",&n);

if(n==0)

{

system("clear");

main();

}

}

void MonitoringSystem(struct Mem mem[])

{

FILE *fp;

int n;

int mem_total=-1;

char name[100];

char data[30][100];

int m=0;

char filename[] = PATH1;

if((fp = fopen(filename,"r")) == NULL)

{

printf("cannot open file %s.\n",filename);

exit(1);

}

for(m=0;m<30;m++)

{

fgets(data[m],sizeof(data[m]),fp);

}

fclose(fp);

for(m=0;m<30;m++)

{

sscanf(data[m],"%s%d",name,&mem_total);

mem[m].data=mem_total;

mem[m].n=name;

}

printf("\n");

fclose(fp);

printf("请输入0返回主菜单\n");

scanf("%d",&n);

if(n==0)

{

system("clear");

main();

}

}

void MonitoringProcess()

{

FILE *fp;

char *p;

char c;

int n;

char pid[20];

printf("请输入要查看的进程号:");

scanf("%s",pid);

p = malloc(sizeof(char));

p="/";

/*p=join(p,"/");*/

p=montage(p,"proc");

p=montage(p,"/");

p=montage(p,pid);

p=montage(p,"/");

p = montage(p,"status.txt");

if((fp = fopen(p, "r")) == NULL)

{

printf("cannot open file %s.\n",p);

exit(1);

}

while((c=fgetc(fp))!=EOF)

{

putchar(c);

}

printf("\n");

fclose(fp);

printf("请输入0返回主菜单\n");

scanf("%d",&n);

if(n==0)

{

system("clear");

main();

}

}

int main()

{

int a;

struct Mem mem[30];

printf("\n****************系统信息显示与检测*****************\n");

printf("\n 1.显示cpu信息\n");

printf(" 2.显示bus信息\n");

printf(" 3.显示软件信息\n");

printf(" 4.监测系统内存信息\n");

printf(" 5.监测进程内存信息\n");

printf(" 0.退出\n");

printf("\n*****************************************************\n");

scanf("%d",&a);

switch(a)

{

case 1:ShowCpuInfo();break;

case 2:ShowBusInfo();break;

case 3:ShowSoftwareInfo();break;

case 4:MonitoringSystem(mem);

printf(" Total\n");

printf("Mem: %d\n",mem[1].data);

printf("Swap: %d\n",mem[2].data);

printf("MemTotal: %d kB\n",mem[3].data);

printf("MemFree: %d kB\n",mem[4].data);

printf("MemShared: %d kB\n",mem[5].data);

printf("Buffers: %d kB\n",mem[6].data);

printf("Cached: %d kB\n",mem[7].data);

printf("SwapCached: %d kB\n",mem[8].data);

break;

case 5:MonitoringProcess();break;

case 0:Exit();break;

}

}