sysinfo.h File Reference

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions
char *	get_sysinfo (void)

Function Documentation

get_sysinfo()

char * get_sysinfo

(

void

)

get_sysinfo - Retrieves system information and formats it as a JSON string. Return: A pointer to a dynamically allocated string containing the system information in JSON format, or NULL on failure.

Definition at line 18 of file sysinfo.c.

                        {
    struct new_utsname *uts = utsname();
    char *info = kmalloc(STD_BUFFER_SIZE, GFP_KERNEL);
    if (!info)
        return NULL;
 
    unsigned long ram_mb = (totalram_pages() << PAGE_SHIFT) / 1024 / 1024;
    int cpu_count = num_online_cpus();
    const char *cpu_model =
        boot_cpu_data.x86_model_id[0] ? boot_cpu_data.x86_model_id : "Unknown";
 
    snprintf(info, STD_BUFFER_SIZE,
             "{\n"
             "  \"hostname\": \"%s\",\n"
             "  \"system\": \"%s\",\n"
             "  \"virtual_env\": \"%s\",\n"
             "  \"release\": \"%s\",\n"
             "  \"version\": \"%s\",\n"
             "  \"architecture\": \"%s\",\n"
             "  \"ram_mb\": \"%lu\",\n"
             "  \"cpu_model\": \"%s\",\n"
             "  \"cpu_cores\": \"%d\"\n"
             "}\n",
             uts->nodename, uts->sysname,
             is_running_in_virtual_env() ? "True" : "False", uts->release,
             uts->version, uts->machine, ram_mb, cpu_model, cpu_count);
 
    return info;
}