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pinfo.c
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pinfo.c
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#include "pinfo.h"
#include "headers.h"
int run_strtol (char * input){
int output;
char * end;
output = strtol (input, & end, 10);
if (end == input)
return -1;
return output;
}
int pinfo(char* input){
char buff[1000];
char c;
int d, i;
long long vsize;
char mem[PATH_MAX];
struct stat state;
pid_t id=run_strtol(input);
if(id==-1)
id=getpid();
snprintf(buff, 1000, "/proc/%d/stat", id);
FILE* fp = fopen(buff, "r");
if (fp) {
if(!fscanf(fp, "%d %s %c", &d, &buff, &c)) {
printf("%d Not accessible\n", d);
perror("Error");
return -1;
}
for(i=0;i<19;i++)
fscanf(fp, "%s", &buff);
fscanf(fp, "%lu", &vsize);
}
memset(buff, 0, strlen(buff));
sprintf(buff, "/proc/%d/exe", id);
if(readlink(buff, mem, 1000)==-1){
perror("Error: ");
return -1;
}
printf("pid -- %d\n", id);
printf("Process Status -- %c\n", c);
printf("memory -- %d\n", vsize);
printf("Executable Path -- %s\n", mem);
}