initial commit
This commit is contained in:
klein panic
26
Makefile
Normal file
26
Makefile
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# Variables
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CC = gcc
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CFLAGS = -Wall -Wextra -Werror
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TARGET = code_analyzer
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SCRIPT = analyze.sh
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INSTALL_DIR = /usr/local/bin
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# Default target
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all: $(TARGET)
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# Compile the C program
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$(TARGET): code_analyzer.c
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$(CC) $(CFLAGS) -o $(TARGET) code_analyzer.c
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# Install the script and binary
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install: $(TARGET) $(SCRIPT)
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sudo cp $(TARGET) $(INSTALL_DIR)/$(TARGET)
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sudo cp $(SCRIPT) $(INSTALL_DIR)/$(SCRIPT)
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sudo chmod +x $(INSTALL_DIR)/$(SCRIPT)
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# Clean up the binary
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clean:
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rm -f $(TARGET)
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# Phony targets
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.PHONY: all install clean
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8
analyze.sh
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8
analyze.sh
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#!/bin/bash
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if [ $# -lt 2 ]; then
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echo "Usage: $0 <command> [args] <duration>"
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exit 1
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fi
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/usr/local/bin/code_analyzer "$@"
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200
code_analyzer.c
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200
code_analyzer.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/statvfs.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <linux/hdreg.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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// Function to get the CPU usage of a process
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double get_cpu_usage(int pid) {
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char path[40];
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FILE *file;
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sprintf(path, "/proc/%d/stat", pid);
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file = fopen(path, "r");
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if (!file) return -1;
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long unsigned int utime, stime, cutime, cstime;
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double total_time;
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long unsigned int starttime;
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unsigned long int total_jiffies;
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fscanf(file, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %*u %*u %lu %lu %lu %lu %*d %*d %*d %*d %lu",
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&utime, &stime, &cutime, &cstime, &starttime);
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fclose(file);
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total_time = (double) (utime + stime + cutime + cstime);
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total_jiffies = sysconf(_SC_CLK_TCK);
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return total_time / total_jiffies;
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}
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// Function to get the memory usage of a process
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long get_memory_usage(int pid) {
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char path[40], line[100];
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FILE *file;
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sprintf(path, "/proc/%d/status", pid);
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file = fopen(path, "r");
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if (!file) return -1;
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long memory = -1;
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while (fgets(line, 100, file)) {
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if (strncmp(line, "VmRSS:", 6) == 0) {
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sscanf(line + 6, "%ld", &memory);
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break;
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}
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}
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fclose(file);
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return memory;
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}
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// Function to get disk usage
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void get_disk_usage(const char *path, long *total, long *free) {
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struct statvfs stat;
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if (statvfs(path, &stat) != 0) {
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*total = -1;
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*free = -1;
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return;
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}
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*total = stat.f_blocks * stat.f_frsize;
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*free = stat.f_bfree * stat.f_frsize;
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}
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// Function to get disk I/O usage
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void get_disk_io_usage(int pid, long *read_bytes, long *write_bytes) {
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char path[40], line[100];
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FILE *file;
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sprintf(path, "/proc/%d/io", pid);
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file = fopen(path, "r");
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if (!file) {
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*read_bytes = -1;
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*write_bytes = -1;
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return;
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}
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while (fgets(line, 100, file)) {
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if (strncmp(line, "read_bytes:", 11) == 0) {
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sscanf(line + 11, "%ld", read_bytes);
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} else if (strncmp(line, "write_bytes:", 12) == 0) {
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sscanf(line + 12, "%ld", write_bytes);
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}
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}
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fclose(file);
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}
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// Function to get network usage
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void get_network_usage(long *rx_bytes, long *tx_bytes) {
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FILE *file;
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char line[256];
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*rx_bytes = 0;
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*tx_bytes = 0;
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file = fopen("/proc/net/dev", "r");
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if (!file) return;
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// Skip the first two lines
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fgets(line, sizeof(line), file);
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fgets(line, sizeof(line), file);
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while (fgets(line, sizeof(line), file)) {
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char iface[32];
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long rx, tx;
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sscanf(line, "%s %ld %*d %*d %*d %*d %*d %*d %*d %ld", iface, &rx, &tx);
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*rx_bytes += rx;
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*tx_bytes += tx;
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}
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fclose(file);
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}
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// Function to run a command and analyze its usage for a given duration
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void analyze_command(char *command[], int duration) {
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pid_t pid = fork();
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if (pid == 0) {
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// Child process: Execute the command
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execvp(command[0], command);
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perror("execvp");
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exit(1);
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} else if (pid > 0) {
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// Parent process: Monitor the child process
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double start_cpu_time = get_cpu_usage(pid);
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long start_rx_bytes, start_tx_bytes;
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get_network_usage(&start_rx_bytes, &start_tx_bytes);
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long total_memory_usage = 0;
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long total_read_bytes = 0, total_write_bytes = 0;
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int sample_count = 0;
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time_t start = time(NULL);
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while (time(NULL) - start < duration) {
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long memory_usage = get_memory_usage(pid);
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long read_bytes, write_bytes;
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get_disk_io_usage(pid, &read_bytes, &write_bytes);
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if (memory_usage < 0 || read_bytes < 0 || write_bytes < 0) {
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fprintf(stderr, "Error: Could not retrieve information for PID %d\n", pid);
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break;
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}
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total_memory_usage += memory_usage;
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total_read_bytes = read_bytes; // Update to reflect actual read bytes
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total_write_bytes = write_bytes; // Update to reflect actual write bytes
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sample_count++;
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sleep(1);
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}
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double end_cpu_time = get_cpu_usage(pid);
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long end_rx_bytes, end_tx_bytes;
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get_network_usage(&end_rx_bytes, &end_tx_bytes);
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kill(pid, SIGKILL); // Terminate the process after the duration
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waitpid(pid, NULL, 0); // Wait for the child process to finish
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double cpu_time_diff = end_cpu_time - start_cpu_time;
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long avg_memory_usage = total_memory_usage / sample_count;
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long total_rx_bytes = end_rx_bytes - start_rx_bytes;
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long total_tx_bytes = end_tx_bytes - start_tx_bytes;
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int num_cores = sysconf(_SC_NPROCESSORS_ONLN);
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double elapsed_time = duration;
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double cpu_usage_percentage = (cpu_time_diff / elapsed_time) * 100.0 * num_cores;
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long disk_total, disk_free;
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get_disk_usage("/", &disk_total, &disk_free);
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printf("Command: %s\n", command[0]);
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printf("CPU Usage: %.2f%%\n", cpu_usage_percentage);
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printf("Average Memory Usage: %ld kB\n", avg_memory_usage);
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printf("Disk Read Bytes: %ld\n", total_read_bytes);
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printf("Disk Write Bytes: %ld\n", total_write_bytes);
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printf("Network Received Bytes: %ld\n", total_rx_bytes);
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printf("Network Transmitted Bytes: %ld\n", total_tx_bytes);
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printf("Disk Total: %ld bytes\n", disk_total);
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printf("Disk Free: %ld bytes\n", disk_free);
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} else {
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perror("fork");
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exit(1);
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}
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}
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int main(int argc, char *argv[]) {
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if (argc < 3) {
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fprintf(stderr, "Usage: %s <command> [args] <duration>\n", argv[0]);
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return 1;
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}
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int duration = atoi(argv[argc - 1]); // The last argument is the duration
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argv[argc - 1] = NULL; // Remove the duration from the command arguments
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analyze_command(argv + 1, duration);
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return 0;
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}
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