SysTutorials Posts

NAME getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent – get RPC entry SYNOPSIS #include <netdb.h> struct rpcent *getrpcent(void); struct rpcent *getrpcbyname(const char *name); struct rpcent *getrpcbynumber(int number); void setrpcent(int stayopen); void endrpcent(void); DESCRIPTION The getrpcent(), getrpcbyname(), and getrpcbynumber() functions each return a pointer to an object with the following structure containing the broken-out fields of an entry…

NAME getrpcent_r, getrpcbyname_r, getrpcbynumber_r – get RPC entry (reentrant) SYNOPSIS #include <netdb.h> int getrpcent_r(struct rpcent *result_buf, char *buf, size_t buflen, struct rpcent **result); int getrpcbyname_r(const char *name, struct rpcent *result_buf, char *buf, size_t buflen, struct rpcent **result); int getrpcbynumber_r(int number, struct rpcent *result_buf, char *buf, size_t buflen, struct rpcent **result); Feature Test Macro Requirements for…

NAME getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent – get RPC entry SYNOPSIS #include <netdb.h> struct rpcent *getrpcent(void); struct rpcent *getrpcbyname(const char *name); struct rpcent *getrpcbynumber(int number); void setrpcent(int stayopen); void endrpcent(void); DESCRIPTION The getrpcent(), getrpcbyname(), and getrpcbynumber() functions each return a pointer to an object with the following structure containing the broken-out fields of an entry…

NAME getr_depth, getg_depth, getb_depth, geta_depth – Extract a color component from a color in a specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr_depth(int color_depth, int c); int getg_depth(int color_depth, int c); int getb_depth(int color_depth, int c); int geta_depth(int color_depth, int c); DESCRIPTION Given a color in the format being used by…

NAME getr8, getg8, getb8, getr15, getg15, getb15, getr16, getg16, getb16, getr24, getg24, getb24, getr32, getg32, getb32 – Extract a color component from the specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr8(int c); int getg8(int c); int getb8(int c); int getr15(int c); int getg15(int c); int getb15(int c); int getr16(int c); int…

NAME getr8, getg8, getb8, getr15, getg15, getb15, getr16, getg16, getb16, getr24, getg24, getb24, getr32, getg32, getb32 – Extract a color component from the specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr8(int c); int getg8(int c); int getb8(int c); int getr15(int c); int getg15(int c); int getb15(int c); int getr16(int c); int…

NAME getr8, getg8, getb8, getr15, getg15, getb15, getr16, getg16, getb16, getr24, getg24, getb24, getr32, getg32, getb32 – Extract a color component from the specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr8(int c); int getg8(int c); int getb8(int c); int getr15(int c); int getg15(int c); int getb15(int c); int getr16(int c); int…

NAME getr8, getg8, getb8, getr15, getg15, getb15, getr16, getg16, getb16, getr24, getg24, getb24, getr32, getg32, getb32 – Extract a color component from the specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr8(int c); int getg8(int c); int getb8(int c); int getr15(int c); int getg15(int c); int getb15(int c); int getr16(int c); int…

NAME getr8, getg8, getb8, getr15, getg15, getb15, getr16, getg16, getb16, getr24, getg24, getb24, getr32, getg32, getb32 – Extract a color component from the specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr8(int c); int getg8(int c); int getb8(int c); int getr15(int c); int getg15(int c); int getb15(int c); int getr16(int c); int…

NAME getr, getg, getb, geta – Extract a color component from the current pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr(int c); int getg(int c); int getb(int c); int geta(int c); DESCRIPTION Given a color in the format being used by the current video mode, these functions extract one of the red,…

NAME getpwnam, getpwnam_r, getpwuid, getpwuid_r – get password file entry SYNOPSIS #include <pwd.h> #include <sys/types.h> struct passwd *getpwnam(const char *name); struct passwd *getpwuid(uid_t uid); int getpwnam_r(const char *name, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); Feature Test Macro Requirements…

NAME getpwnam, getpwnam_r, getpwuid, getpwuid_r – get password file entry SYNOPSIS #include <pwd.h> #include <sys/types.h> struct passwd *getpwnam(const char *name); struct passwd *getpwuid(uid_t uid); int getpwnam_r(const char *name, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); Feature Test Macro Requirements…

NAME getpwnam, getpwnam_r, getpwuid, getpwuid_r – get password file entry SYNOPSIS #include <pwd.h> #include <sys/types.h> struct passwd *getpwnam(const char *name); struct passwd *getpwuid(uid_t uid); int getpwnam_r(const char *name, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); Feature Test Macro Requirements…

NAME getpwnam, getpwnam_r, getpwuid, getpwuid_r – get password file entry SYNOPSIS #include <pwd.h> #include <sys/types.h> struct passwd *getpwnam(const char *name); struct passwd *getpwuid(uid_t uid); int getpwnam_r(const char *name, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result); Feature Test Macro Requirements…

NAME getpwent_r, fgetpwent_r – get passwd file entry reentrantly SYNOPSIS #include <pwd.h> int getpwent_r(struct passwd *pwbuf, char *buf, size_t buflen, struct passwd **pwbufp); int fgetpwent_r(FILE *stream, struct passwd *pwbuf, char *buf, size_t buflen, struct passwd **pwbufp); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): getpwent_r(),     Since glibc 2.19:         _DEFAULT_SOURCE     Glibc 2.19 and earlier:         _BSD_SOURCE || _SVID_SOURCE…

NAME getpwent, setpwent, endpwent – get password file entry SYNOPSIS #include <pwd.h> #include <sys/types.h> struct passwd *getpwent(void); void setpwent(void); void endpwent(void); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): getpwent(), setpwent(), endpwent(): _XOPEN_SOURCE >= 500     || /* Glibc since 2.19: */ _DEFAULT_SOURCE     || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE DESCRIPTION The getpwent() function returns a pointer to a structure containing the broken-out fields of a…

NAME getpw – reconstruct password line entry SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <pwd.h> #include <sys/types.h> int getpw(uid_t uid, char *buf); DESCRIPTION The getpw() function reconstructs the password line entry for the given user ID uid in the buffer buf. The returned buffer contains a line of format name:passwd:uid:gid:gecos:dir:shell The passwd structure is…

NAME getpt – open a new pseudoterminal master SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdlib.h> int getpt(void); DESCRIPTION getpt() opens a new pseudoterminal device and returns a file descriptor that refers to that device. It is equivalent to opening the pseudoterminal multiplexor device open("/dev/ptmx", O_RDWR); on Linux systems, though the pseudoterminal multiplexor device…

NAME getprotoent_r, getprotobyname_r, getprotobynumber_r – get protocol entry (reentrant) SYNOPSIS #include <netdb.h> int getprotoent_r(struct protoent *result_buf, char *buf, size_t buflen, struct protoent **result); int getprotobyname_r(const char *name, struct protoent *result_buf, char *buf, size_t buflen, struct protoent **result); int getprotobynumber_r(int proto, struct protoent *result_buf, char *buf, size_t buflen, struct protoent **result); Feature Test Macro Requirements for…

NAME getprotoent, getprotobyname, getprotobynumber, setprotoent, endprotoent – get protocol entry SYNOPSIS #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); DESCRIPTION The getprotoent() function reads the next entry from the protocols database (see protocols(5)) and returns a protoent structure containing the broken-out fields from the…