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3 Commits

Author SHA1 Message Date
1216c17b87
Updated for new file_handling 2025-02-27 20:29:50 +03:00
cb20bd27b4
new file_handling method 2025-02-27 20:29:21 +03:00
f329180197
Update CmakeLists 2025-02-27 20:28:24 +03:00
4 changed files with 27 additions and 18 deletions

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@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.10)
project(ConsoleUtility C)
set(CMAKE_C_STANDARD 99)
add_executable(console_utility src/main.c src/users.c src/processes.c src/logging.c src/error_handling.c)
add_executable(console_utility src/main.c src/users.c src/processes.c src/file_handling.c)

11
src/file_handling.c Normal file
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@ -0,0 +1,11 @@
#include "file_handling.h"
#include <stdlib.h>
#include <stdio.h>
FILE *open_file(const char *path, const char *mode, const char *error_message) {
FILE *file = fopen(path, mode);
if (!file) {
perror(error_message);
}
return file;
}

5
src/file_handling.h Normal file
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@ -0,0 +1,5 @@
#ifndef FILE_HANDLING_H
#define FILE_HANDLING_H
#include <stdio.h>
FILE *open_file(const char *path, const char *mode, const char *error_message);
#endif

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@ -5,40 +5,35 @@
#include <string.h>
#include "users.h"
#include "processes.h"
#include "logging.h"
#include "error_handling.h"
#include "file_handling.h"
void setup_error_redirection(char *error_file, FILE **err_fp) {
if (error_file) {
FILE *temp_err_fp = fopen(error_file, "w");
if (!temp_err_fp) {
perror("Failed to open error log file");
*err_fp = open_file(error_file, "w", "Failed to open error log file");
if (!(*err_fp)) {
exit(1);
}
fflush(stderr); // Ensure all previous stderr output is flushed
if (dup2(fileno(temp_err_fp), STDERR_FILENO) == -1) {
fflush(stderr);
if (dup2(fileno(*err_fp), STDERR_FILENO) == -1) {
perror("Failed to redirect stderr to file");
fclose(temp_err_fp);
fclose(*err_fp);
exit(1);
}
*err_fp = temp_err_fp;
}
}
void setup_log_redirection(char *log_file, FILE **log_fp) {
if (log_file) {
FILE *temp_log_fp = fopen(log_file, "w");
if (!temp_log_fp) {
perror("Failed to open log file");
*log_fp = open_file(log_file, "w", "Failed to open log file");
if (!(*log_fp)) {
exit(1);
}
fflush(stdout);
if (dup2(fileno(temp_log_fp), STDOUT_FILENO) == -1) {
if (dup2(fileno(*log_fp), STDOUT_FILENO) == -1) {
perror("Failed to redirect stdout to file");
fclose(temp_log_fp);
fclose(*log_fp);
exit(1);
}
*log_fp = temp_log_fp;
}
}
@ -49,7 +44,6 @@ int main(int argc, char *argv[]) {
int show_users = 0, show_processes = 0;
FILE *log_fp = stdout, *err_fp = stderr;
// Early error redirection handling to ensure stderr is set up before parsing arguments
for (int i = 1; i < argc; i++) {
if ((strcmp(argv[i], "-e") == 0 || strcmp(argv[i], "--errors") == 0) && i + 1 < argc) {
error_file = argv[i + 1];
@ -86,7 +80,6 @@ int main(int argc, char *argv[]) {
}
}
// Ensure log redirection is handled after argument parsing
setup_log_redirection(log_file, &log_fp);
if (show_users) {