starnakin/42_ft_ping
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add: description to paring struct && create setting.c

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starnakin
2025-12-16 08:22:35 -06:00
parent 07f3076c26
commit bed729e8e1
4 changed files with 69 additions and 64 deletions
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64
src/main.c
View File

@@ -1,7 +1,6 @@
#include "dns.h"
#include "host.h"
#include "packet.h"
#include "parsing.h"
#include "print.h"
#include "setting.h"
#include "statistics.h"
@@ -26,7 +25,6 @@
#include <stdbool.h>
#include <sys/socket.h>
#include <netdb.h>
#include <ctype.h>
#include <net/ethernet.h>
bool loop = true;
@@ -37,68 +35,6 @@ static void signal_handler(int code)
loop = false;
}
static int parsing_number(const char *str, size_t min, size_t max, size_t *out)
{
size_t number = 0;
const char *start = str;
while (*start != '\0')
{
if (!isdigit(*start))
goto value_error;
size_t tmp = number * 10 + *start - '0';
if (tmp < number)
goto range_error;
number = tmp;
start++;
}
if (min > number || number > max)
goto range_error;
*out = number;
return 0;
range_error:
print_err("invalid argument: '%s': out of range: %zu <= value <= %zu", str, min, max);
return 1;
value_error:
print_err("invalid argument: in '%s' '%c' is not a digit", str, *start);
return 2;
}
static int get_setting(char * const *av, struct setting *settings)
{
struct param parameters[] = {
{NULL, "?", OPTION, false},
{NULL, "v", OPTION, false},
{NULL, "n", OPTION, false},
{"ttl", NULL, ARGUMENT, "116"},
{NULL, "s", ARGUMENT, "56"},
{NULL, "p", ARGUMENT, "0"},
{NULL, NULL, 0, NULL},
};
char *hostname = parsing(av, parameters);
if (hostname == NULL)
return 1;
settings->dest.hostname = hostname;
settings->help = parameters[0].value;
settings->verbose = parameters[1].value;
settings->numeric_only = parameters[2].value;
size_t ttl;
if (parsing_number(parameters[3].value, 1, 255, &ttl))
return 2;
settings->ttl = ttl;
if (parsing_number(parameters[4].value, 0, 2147483647, &settings->payload_size))
return 3;
if (parsing_number(parameters[5].value, 0, 2147483647, &settings->preload))
return 4;
return 0;
}
static int create_socket(struct setting const *settings)
{
int ret;

1
src/parsing.h
View File

@@ -10,6 +10,7 @@ struct param {
const char *alias;
e_type type;
void *value;
const char *desc;
};
char *parsing(char * const *av, struct param parameters[]);

66
src/setting.c Normal file
View File

@@ -0,0 +1,66 @@
#include "setting.h"
#include "parsing.h"
#include "print.h"
#include <ctype.h>
static int parsing_number(const char *str, size_t min, size_t max, size_t *out)
{
size_t number = 0;
const char *start = str;
while (*start != '\0')
{
if (!isdigit(*start))
goto value_error;
size_t tmp = number * 10 + *start - '0';
if (tmp < number)
goto range_error;
number = tmp;
start++;
}
if (min > number || number > max)
goto range_error;
*out = number;
return 0;
range_error:
print_err("invalid argument: '%s': out of range: %zu <= value <= %zu", str, min, max);
return 1;
value_error:
print_err("invalid argument: in '%s' '%c' is not a digit", str, *start);
return 2;
}
int get_setting(char * const *av, struct setting *settings)
{
struct param parameters[] = {
{NULL, "?", OPTION, false, "Display help"},
{NULL, "v", OPTION, false, "Set verbose"},
{NULL, "n", OPTION, false, "Numeric only, display only host ip"},
{"ttl", NULL, ARGUMENT, "116", "Change ttl (defautl=116)"},
{NULL, "s", ARGUMENT, "56", "send packets before get recv"},
{NULL, "p", ARGUMENT, "0", "send packet with a specific payload size"},
{NULL, NULL, 0, NULL, NULL},
};
char *hostname = parsing(av, parameters);
if (hostname == NULL)
return 1;
settings->dest.hostname = hostname;
settings->help = parameters[0].value;
settings->verbose = parameters[1].value;
settings->numeric_only = parameters[2].value;
size_t ttl;
if (parsing_number(parameters[3].value, 1, 255, &ttl))
return 2;
settings->ttl = ttl;
if (parsing_number(parameters[4].value, 0, 2147483647, &settings->payload_size))
return 3;
if (parsing_number(parameters[5].value, 0, 2147483647, &settings->preload))
return 4;
return 0;
}

2
src/setting.h
View File

@@ -18,3 +18,5 @@ struct setting
struct hostenv dest;
size_t preload;
};
int get_setting(char * const *av, struct setting *settings);