ps

1 files changed, 45 insertions, 0 deletions

diff --git a/csrc/ps.c b/csrc/ps.c
new file mode 100644
index 0000000..3481498
--- /dev/null
+++ b/csrc/ps.c
@@ -0,0 +1,45 @@
+#include "ps.h"
+#include <ctype.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <string.h>
+
+void print_process_info(const char *pid) {
+  char path[256], line[256];
+  FILE *status_file;
+
+  snprintf(path, sizeof(path), "/proc/%s/status", pid);
+  status_file = fopen(path, "r");
+  if (!status_file) {
+    return;
+  }
+
+  printf("Process ID: %s\n", pid);
+  while (fgets(line, sizeof(line), status_file)) {
+    if (strncmp(line, "Name:", 5) == 0 || strncmp(line, "State:", 6) == 0 ||
+        strncmp(line, "PPid:", 5) == 0) {
+      printf("%s", line);
+    }
+  }
+  fclose(status_file);
+  printf("\n");
+}
+
+ps_status_t ps() {
+  DIR *proc_dir = opendir("/proc");
+  struct dirent *entry;
+
+  if (!proc_dir) {
+    perror("opendir");
+    return PS_ERR;
+  }
+
+  while ((entry = readdir(proc_dir))) {
+    if (entry->d_type == DT_DIR && isdigit(entry->d_name[0])) {
+      print_process_info(entry->d_name);
+    }
+  }
+
+  closedir(proc_dir);
+  return PS_OK;
+}