Linux Manuals session 3

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);DescriptionThe 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 entry. A connection is…

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 glibc (see feature_test_macros(7)):…

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);DescriptionThe 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 entry. A connection is…

getprogname setprogname – get or set the program name LibraryLb libbsd SynopsisIn bsd/stdlib.h Ft const char * Fn getprogname void Ft void Fn setprogname const char *progname DescriptionThe Fn getprogname and Fn setprogname functions manipulate the name of the current program. They are used by error-reporting routines to produce consistent output. The Fn getprogname function…

getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process Synopsis#include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context); int getpidcon(pid_t…

getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process Synopsis#include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context); int getpidcon(pid_t…

getpixel – Reads a pixel from a bitmap. Allegro game programming library. Synopsis#include <allegro.h> int getpixel(BITMAP *bmp, int x, int y); DescriptionReads a pixel from point (x, y) in the bitmap. Return ValueReturns -1 if the point lies outside the bitmap (ignoring the clipping rectangle), otherwise the value of the pixel in the color format…

getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process Synopsis#include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context); int getpidcon(pid_t…

getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process Synopsis#include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context); int getpidcon(pid_t…

getpeereid – get the effective credentials of a UNIX-domain peer LibraryLb libbsd SynopsisIn sys/types.h In bsd/unistd.h Ft int Fn getpeereid int s uid_t *euid gid_t *egid DescriptionThe Fn getpeereid function returns the effective user and group IDs of the peer connected to a UNIX socket. The argument Fa s must be a UNIX socket (unix(4)…

getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process Synopsis#include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context); int getpidcon(pid_t…

getcon, getprevcon, getpidcon – get SELinux security context of a process freecon, freeconary – free memory associated with SELinux security contexts getpeercon – get security context of a peer socket setcon – set current security context of a process Synopsis#include <selinux/selinux.h> int getcon(char **context); int getcon_raw(char **context); int getprevcon(char **context); int getprevcon_raw(char **context); int getpidcon(pid_t…

getpass – get a password Synopsis#include <unistd.h> char *getpass(const char *prompt); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): getpass(): Since glibc 2.2.2: _XOPEN_SOURCE && ! (_POSIX_C_SOURCE >= 200112L) || /* Glibc since 2.19: */ _DEFAULT_SOURCE || /* Glibc versions <= 2.19: */ _BSD_SOURCEBefore glibc 2.2.2: noneDescriptionThis function is obsolete. Do not use it. If you want…

getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt – Parse command-line options Synopsis#include <unistd.h> int getopt(int argc, char * const argv[], const char *optstring); extern char *optarg; extern int optind, opterr, optopt; #include <getopt.h> int getopt_long(int argc, char * const argv[], const char *optstring, const struct option *longopts, int *longindex); int getopt_long_only(int argc, char * const…

getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt – Parse command-line options Synopsis#include <unistd.h> int getopt(int argc, char * const argv[], const char *optstring); extern char *optarg; extern int optind, opterr, optopt; #include <getopt.h> int getopt_long(int argc, char * const argv[], const char *optstring, const struct option *longopts, int *longindex); int getopt_long_only(int argc, char * const…

getopt, getopt_long, getopt_long_only, optarg, optind, opterr, optopt – Parse command-line options Synopsis#include <unistd.h> int getopt(int argc, char * const argv[], const char *optstring); extern char *optarg; extern int optind, opterr, optopt; #include <getopt.h> int getopt_long(int argc, char * const argv[], const char *optstring, const struct option *longopts, int *longindex); int getopt_long_only(int argc, char * const…

setnetgrent, endnetgrent, getnetgrent, getnetgrent_r, innetgr – handle network group entries Synopsis#include <netdb.h> int setnetgrent(const char *netgroup); void endnetgrent(void); int getnetgrent(char **host, char **user, char **domain); int getnetgrent_r(char **host, char **user, char **domain, char *buf, size_t buflen); int innetgr(const char *netgroup, const char *host, const char *user, const char *domain);Feature Test Macro Requirements for glibc (see…

setnetgrent, endnetgrent, getnetgrent, getnetgrent_r, innetgr – handle network group entries Synopsis#include <netdb.h> int setnetgrent(const char *netgroup); void endnetgrent(void); int getnetgrent(char **host, char **user, char **domain); int getnetgrent_r(char **host, char **user, char **domain, char *buf, size_t buflen); int innetgr(const char *netgroup, const char *host, const char *user, const char *domain);Feature Test Macro Requirements for glibc (see…

getnetent_r, getnetbyname_r, getnetbyaddr_r – get network entry (reentrant) Synopsis#include <netdb.h> int getnetent_r(struct netent *result_buf, char *buf, size_t buflen, struct netent **result, int *h_errnop); int getnetbyname_r(const char *name, struct netent *result_buf, char *buf, size_t buflen, struct netent **result, int *h_errnop); int getnetbyaddr_r(uint32_t net, int type, struct netent *result_buf, char *buf, size_t buflen, struct netent **result, int…

getnetent, getnetbyname, getnetbyaddr, setnetent, endnetent – get network entry Synopsis#include <netdb.h> struct netent *getnetent(void); struct netent *getnetbyname(const char *name); struct netent *getnetbyaddr(uint32_t net, int type); void setnetent(int stayopen); void endnetent(void);DescriptionThe getnetent() function reads the next entry from the networks database and returns a netent structure containing the broken-out fields from the entry. A connection is…