GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.5 |
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logwtmp(3) |
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updwtmp, logwtmp − append an entry to the wtmp file
#include <utmp.h>
void
updwtmp(const char *wtmp_file, const struct
utmp *ut);
void logwtmp(const char *line, const char
*name, const char
*host);
updwtmp() appends the utmp structure ut to the wtmp file.
logwtmp() constructs a utmp structure using line, name, host, current time and current process ID. Then it calls updwtmp() to append the structure to the utmp file.
Both functions are available under glibc2, but not under libc5. However, logwtmp() used to occur in the old libbsd. These days, the logwtmp() function is included in libutil. (Hence you’ll need to add −lutil to your compiler command line to get it.)
Not in POSIX.1-2001. Present on Solaris, NetBSD, and perhaps other systems.
/var/log/wtmp
database of past user logins
wtmp(5)
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logwtmp(3) | |