48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
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/*
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Organization: Technical University of Kosice (TUKE),
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Department: Department of Electronics and Multimedia Telecommunications (DEMT/KEMT),
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Faculties: Faculty of Electrical Engineering and Informatics (FEI),
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Feld of study: Informatics,
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Study program: Computer Networks,
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School year: 4., Ing., 2021/2022
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Author of corrections: Marek Rohac -- MR,
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Last Update: 20.02.2022 -- add description
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*/
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#ifndef os_H
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#define os_H 1
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#include "vpn.h"
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ssize_t safe_read(const int fd, void *const buf_, size_t count, const int timeout);
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ssize_t safe_write(const int fd, const void *const buf_, size_t count, const int timeout);
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ssize_t safe_read_partial(const int fd, void *const buf_, const size_t max_count);
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ssize_t safe_write_partial(const int fd, void *const buf_, const size_t max_count);
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typedef struct Cmds {
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const char *const *set;
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const char *const *unset;
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} Cmds;
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Cmds firewall_rules_cmds(int is_server);
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int shell_cmd(const char *substs[][2], const char *args_str, int silent);
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const char *get_default_gw_ip(void);
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const char *get_default_ext_if_name(void);
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int tcp_opts(int fd);
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int tun_create(char if_name[IFNAMSIZ], const char *wanted_name);
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int tun_set_mtu(const char *if_name, int mtu);
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ssize_t tun_read(int fd, void *data, size_t size);
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ssize_t tun_write(int fd, const void *data, size_t size);
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#endif
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