Linux Manuals session 3

nl_langinfo, nl_langinfo_l – query language and locale information Synopsis #include <langinfo.h> char *nl_langinfo(nl_item item); char *nl_langinfo_l(nl_item item, locale_t locale); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): nl_langinfo_l(): Since glibc 2.24:     _POSIX_C_SOURCE >= 200809L Glibc 2.23 and earlier:     _POSIX_C_SOURCE >= 200112L Description The nl_langinfo() and nl_langinfo_l() functions provide access to locale information in a more flexible way than localeconv(3)….

ngettext, dngettext, dcngettext – translate message and choose plural form Synopsis #include <libintl.h> char *ngettext(const char *msgid, const char *msgid_plural, unsigned long int n); char *dngettext(const char *domainname, const char *msgid, const char *msgid_plural, unsigned long int n); char *dcngettext(const char *domainname, const char *msgid, const char *msgid_plural, unsigned long int n, int category); Description…

ftw, nftw – file tree walk Synopsis #include <ftw.h> int nftw(const char *dirpath, int (*fn)(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf), int nopenfd, int flags); #include <ftw.h> int ftw(const char *dirpath, int (*fn)(const char *fpath, const struct stat *sb, int typeflag), int nopenfd); Feature Test Macro Requirements for glibc (see…

nfstest.utils – Utilities module Description Definition for common classes and constants Classes class SparseFile(baseobj.BaseObj) SparseFile object SparseFile() -> New sparse file object Usage: # Create defintion for a sparse file of size 10000 having # two holes of size 1000 at offsets 3000 and 6000 x = SparseFile("/mnt/t/file1", 10000, [3000, 6000], 1000) # Object attributes…

nfstest.test_util – Test utilities module Description Provides a set of tools for testing either the NFS client or the NFS server, most of the functionality is focused mainly on testing the client. These tools include the following:  – Process command line arguments  – Provide functionality for PASS/FAIL  – Provide test grouping functionality  – Provide multiple…

nfstest.rexec – Remote procedure module Description Provides a set of tools for executing a wide range commands, statements, expressions or functions on a remote host by running a server process on the remote host serving requests without disconnecting. This allows for a sequence of operations to be done remotely and not losing state. A file…

nfstest.nfs_util – NFS utilities module Description Provides a set of tools for testing NFS including methods for starting a packet trace, stopping the packet trace and then open the packet trace for analysis. It also provides a mechanism to enable NFS/RPC kernel debug and saving the log messages for further analysis. Furthermore, methods for finding…

nfstest.host – Host module Description Provides a set of tools for running commands on the local host or a remote host, including a mechanism for running commands in the background. It provides methods for mounting and unmounting from an NFS server and a mechanism to simulate a network partition via the use of ‘iptables’. Currently,…

nfstest.file_io – File I/O module Description Provides an interface to create and manipulate files of different types. The arguments allow running for a specified period of time as well as running multiple processes. Each process modifies a single file at a time and the file name space is different for each process so there are…

nfs4_uid_to_name, nfs4_gid_to_name, nfs4_name_to_uid, nfs4_name_to_gid, nfs4_init_name_mapping, nfs4_get_default_domain, nfs4_gss_princ_to_ids, nfs4_gss_princ_to_grouplist, nfs4_gss_princ_to_ids_ex, nfs4_gss_princ_to_grouplist_ex, nfs4_set_debug – ID mapping routines used for NFSv4 Synopsis #include <nfs4_idmap.h> int nfs4_init_name_mapping(char *conffile); int nfs4_get_default_domain(char *server, char *domain, size_t len); int nfs4_uid_to_name(uid_t uid, char *domain, char *name, size_t len); int nfs4_uid_to_owner(uid_t uid, char *domain, char *name, size_t len); int nfs4_gid_to_name(gid_t gid, char *domain, char…

nextup, nextupf, nextupl, nextdown, nextdownf, nextdownl – return next floating-point number toward positive/negative infinity Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <math.h> double nextup(double x); float nextupf(float x); long double nextupl(long double x); double nextdown(double x); float nextdownf(float x); long double nextdownl(long double x); Link with -lm. Description The nextup(), nextupf(), and nextupl() functions…

nextup, nextupf, nextupl, nextdown, nextdownf, nextdownl – return next floating-point number toward positive/negative infinity Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <math.h> double nextup(double x); float nextupf(float x); long double nextupl(long double x); double nextdown(double x); float nextdownf(float x); long double nextdownl(long double x); Link with -lm. Description The nextup(), nextupf(), and nextupl() functions…

nextup, nextupf, nextupl, nextdown, nextdownf, nextdownl – return next floating-point number toward positive/negative infinity Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <math.h> double nextup(double x); float nextupf(float x); long double nextupl(long double x); double nextdown(double x); float nextdownf(float x); long double nextdownl(long double x); Link with -lm. Description The nextup(), nextupf(), and nextupl() functions…

nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl – floating-point number manipulation Synopsis #include <math.h> double nextafter(double x, double y); float nextafterf(float x, float y); long double nextafterl(long double x, long double y); double nexttoward(double x, long double y); float nexttowardf(float x, long double y); long double nexttowardl(long double x, long double y); Link with -lm. Feature…

nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl – floating-point number manipulation Synopsis #include <math.h> double nextafter(double x, double y); float nextafterf(float x, float y); long double nextafterl(long double x, long double y); double nexttoward(double x, long double y); float nexttowardf(float x, long double y); long double nexttowardl(long double x, long double y); Link with -lm. Feature…

nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl – floating-point number manipulation Synopsis #include <math.h> double nextafter(double x, double y); float nextafterf(float x, float y); long double nextafterl(long double x, long double y); double nexttoward(double x, long double y); float nexttowardf(float x, long double y); long double nexttowardl(long double x, long double y); Link with -lm. Feature…

nextup, nextupf, nextupl, nextdown, nextdownf, nextdownl – return next floating-point number toward positive/negative infinity Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <math.h> double nextup(double x); float nextupf(float x); long double nextupl(long double x); double nextdown(double x); float nextdownf(float x); long double nextdownl(long double x); Link with -lm. Description The nextup(), nextupf(), and nextupl() functions…

nextup, nextupf, nextupl, nextdown, nextdownf, nextdownl – return next floating-point number toward positive/negative infinity Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <math.h> double nextup(double x); float nextupf(float x); long double nextupl(long double x); double nextdown(double x); float nextdownf(float x); long double nextdownl(long double x); Link with -lm. Description The nextup(), nextupf(), and nextupl() functions…

nextup, nextupf, nextupl, nextdown, nextdownf, nextdownl – return next floating-point number toward positive/negative infinity Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <math.h> double nextup(double x); float nextupf(float x); long double nextupl(long double x); double nextdown(double x); float nextdownf(float x); long double nextdownl(long double x); Link with -lm. Description The nextup(), nextupf(), and nextupl() functions…

nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl – floating-point number manipulation Synopsis #include <math.h> double nextafter(double x, double y); float nextafterf(float x, float y); long double nextafterl(long double x, long double y); double nexttoward(double x, long double y); float nexttowardf(float x, long double y); long double nexttowardl(long double x, long double y); Link with -lm. Feature…