167 lines
3.6 KiB
C
167 lines
3.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* parsing.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/04/26 17:01:53 by tomoron #+# #+# */
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/* Updated: 2025/08/20 16:42:02 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "includes/ft_ping.h"
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int get_set_int(char *arg, t_settings *set)
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{
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char *tmp;
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tmp = arg;
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while(*tmp)
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{
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if(!isdigit(*tmp))
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{
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fprintf(stderr, "%s: invalid value (`%s' near `%s')\n", set->name, arg, tmp);
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set->err = 1;
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return(0);
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}
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tmp++;
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}
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return(atoi(arg));
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}
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double get_set_float(char *arg, t_settings *set)
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{
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char *tmp;
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int point;
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tmp = arg;
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while(*tmp)
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{
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if((!isdigit(*tmp) && *tmp != '.') || (*tmp == '.' && point))
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{
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fprintf(stderr, "%s: invalid value (`%s' near `%s')\n", set->name, arg, tmp);
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set->err = 1;
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return(0);
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}
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if(*tmp == '.')
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point = 1;
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tmp++;
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}
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return(atof(arg));
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}
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int check_values(t_settings *set, char *name)
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{
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if (set->setTtl)
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{
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if (set->ttl == 0)
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{
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fprintf(stderr, "%s: option value too small: %d\n", name, set->ttl);
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return(0);
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}
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else if (set->ttl >= 256)
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{
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fprintf(stderr, "%s: option value too big: %d\n", name, set->ttl);
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return(0);
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}
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}
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if (set->interval < 0.2)
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{
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fprintf(stderr, "%s: option value is too small: %g\n", name, set->interval);
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return(0);
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}
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return (1);
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}
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void init_settings(t_settings *set)
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{
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char *tmp;
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tmp = set->name;
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bzero(set, sizeof(t_settings));
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set->name = tmp;
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set->timeout = -1;
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set->interval = 1;
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set->socket = -1;
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set->linger = 10;
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}
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int parse_args(int argc, char **argv, t_settings *set)
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{
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int arg;
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struct option opts[] =
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{
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{"count", required_argument, 0, 'c'},
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{"interval", required_argument, 0, 'i'},
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{"timeout", required_argument, 0, 'w'},
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{"linger", required_argument, 0, 'W'},
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{"ttl", required_argument , 0, 1000},
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{"verbose", no_argument, &set->verbose, 1},
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0}
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};
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for(int i = 1; i < argc; i++)
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{
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if(!strcmp(argv[i], "-?"))
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{
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show_help(set);
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return (1);
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}
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}
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unsetenv("POSIXLY_CORRECT");
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init_settings(set);
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arg = 0;
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while (arg != -1)
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{
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arg = getopt_long(argc, argv, "c:i:w:W:vh", opts, NULL);
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switch (arg) {
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case 'c':
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set->count = get_set_int(optarg, set);
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break;
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case 'i':
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set->interval = get_set_float(optarg, set);
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break;
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case 'w':
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set->timeout = get_set_int(optarg, set);
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break;
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case 'W':
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set->linger = get_set_int(optarg, set);
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break;
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case 1000:
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set->ttl = get_set_int(optarg, set);
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set->setTtl = 1;
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break;
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case 'v':
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set->verbose = 1;
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break;
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case 'h':
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case '?':
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show_help(set);
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return (1);
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default :
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break ;
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}
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}
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while (optind < argc)
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{
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if (!add_host(set, argv[optind]))
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{
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set->err = 1;
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return (0);
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}
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optind++;
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}
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if (!set->hosts)
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{
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fprintf(stderr, "%s: missing host operand\n", set->name);
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set->err = 1;
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return (1);
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}
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if (!set->err)
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set->err = !check_values(set, argv[0]);
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return (0);
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}
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