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#include <netdb.h> struct protoent *getprotoent(void); struct protoent *getprotobyname(const char *name); struct protoent *getprotobynumber(int proto); void setprotoent(int stayopen); void endprotoent(void);
getprotobyname() ÇÔ¼ö´Â /etc/protocols ¿¡¼ ÇÁ·ÎÅäÄÝ À̸§ name°ú ÀÏÄ¡ÇÏ´Â ¶óÀο¡ ÇØ´çÇÏ´Â protoent ±¸Á¶Ã¼¸¦ ¹ÝȯÇÑ´Ù.
getprotobynumber() ÇÔ¼ö´Â ÇÁ·ÎÅäÄÝ ¹øÈ£ number°ú ÀÏÄ¡ÇÏ´Â ¶óÀο¡ ÇØ´çÇÏ´Â protoent ±¸Á¶Ã¼¸¦ ¹ÝȯÇÑ´Ù.
setprotoent() ÇÔ¼ö´Â /etc/protocols ÆÄÀÏÀ» ÀÐ°í µÇ °¨´Â´Ù. ¸¸ÀÏ stayopen °¡ Âü(1)À̶ó¸é, ÆÄÀÏÀº getprotobyname() ³ª getprotobynumber() È£Ãâ½Ã ´ÝÇôÁöÁö ¾Ê´Â´Ù.
endprotoent() ÇÔ¼ö´Â /etc/protocols¸¦ ´Ý´Â´Ù.
protoent ±¸Á¶Ã¼´Â ´ÙÀ½Ã³·³ <netdb.h> ¿¡ Á¤ÀǵǾî ÀÖ´Ù:
struct protoent {
char *p_name; /* °ø½ÄÀûÀÎ ÇÁ·ÎÅäÄÝ À̸§ */
char **p_aliases; /* º°Äª ¸®½ºÆ® */
int p_proto; /* ÇÁ·ÎÅäÄÝ ¹øÈ£ */
}
protoent ±¸Á¶Ã¼ÀÇ ¸â¹ö´Â: