Linux-C-Shell-Ainux/pinfo.c at master · inesane/Linux-C-Shell-Ainux · GitHub

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#include "headers.h"
#include "pinfo.h"

void pinfo(char *inputs[], int args, char home[])
{
    if (args == 1 || args == 2)
    {
        int pid;
        if (args == 1)
        {
            pid = getpid();
        }
        if (args == 2)
        {
            pid = atoi(inputs[1]);
        }
        int pidtemp = pid;
        char procloc[1000] = "/proc/";
        int counter = 0;
        char temp[100];
        while (pid > 0)
        {
            temp[counter] = (pid % 10) + '0';
            pid = pid / 10;
            counter++;
        }
        int j = 0;
        for (int i = counter - 1; i >= 0; i--)
        {
            procloc[6 + i] = temp[counter - i - 1];
        }
        char open[1000];
        strcpy(open, "");
        strcat(open, procloc);
        char exe[10] = "/exe";
        strcat(procloc, exe);
        char stat[10] = "/stat";
        strcat(open, stat);
        char proc[52][1000];
        FILE *fp = fopen(open, "r");
        if (fp == NULL)
        {
            printf("%s\n", open);
            perror("ERROR ");
        }
        else
        {
            fscanf(fp, "%s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s %s", proc[0], proc[1], proc[2], proc[3], proc[4], proc[5], proc[6], proc[7], proc[8], proc[9], proc[10], proc[11], proc[12], proc[13], proc[14], proc[15], proc[16], proc[17], proc[18], proc[19], proc[20], proc[21], proc[22], proc[23], proc[24], proc[25], proc[26], proc[27], proc[28], proc[29], proc[30], proc[31], proc[32], proc[33], proc[34], proc[35], proc[36], proc[37], proc[38], proc[39], proc[40], proc[41], proc[42], proc[43], proc[44], proc[45], proc[46], proc[47], proc[48], proc[49], proc[50], proc[51]);
            fclose(fp);
            printf("%s\n", procloc);
            printf("pid -- %d\n", pidtemp);
            printf("Process Status -- %s\n", proc[2]);
            printf("memory -- %s\n", proc[22]);
            char buffer[1000] = {'\0'};
            readlink(procloc, buffer, 1000);
            int count = 0;
            for (int i = 0; i < strlen(home); i++)
            {
                if (home[i] == buffer[i])
                {
                    count++;
                }
                else
                {
                    break;
                }
            }
            if (count == strlen(home))
            {
                int pathlength = strlen(buffer);
                int homelength = strlen(home);
                int i;
                char tilda[pathlength - homelength + 1];
                tilda[0] = '~';
                for (i = 1; i < pathlength - homelength + 1; i++)
                {
                    tilda[i] = buffer[homelength + i - 1];
                }
                printf("Exectuable buffer -- %s\n", tilda);
            }
            else
            {
                printf("Exectuable buffer -- %s\n", buffer);
            }
        }
    }
    else
    {
        fprintf(stderr, "ERROR : Invalid Number of Arguments\n");
    }
}