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GETPROGNAME(3) | Library Functions Manual | GETPROGNAME(3) |
NAME¶
getprogname, setprogname — get or set the program nameLIBRARY¶
library “libbsd”SYNOPSIS¶
#include <bsd/stdlib.h> const char *getprogname(void); void
setprogname(const char *progname);
DESCRIPTION¶
The getprogname() and setprogname() functions manipulate the name of the current program. They are used by error-reporting routines to produce consistent output. The getprogname() function returns the name of the program. If the name has not been set yet, it will returnNULL
.
The setprogname() function sets the name of the program to be
the last component of the progname argument. Since a
pointer to the given string is kept as the program name, it should not be
modified for the rest of the program's lifetime.
In FreeBSD, the name of the program is set by the
start-up code that is run before main(); thus, running
setprogname() is not necessary. Programs that desire maximum
portability should still call it; on another operating system, these functions
may be implemented in a portability library. Calling
setprogname() allows the aforementioned library to learn the
program name without modifications to the start-up code.
SEE ALSO¶
err(3), setproctitle(3)HISTORY¶
These functions first appeared in NetBSD 1.6, and made their way into FreeBSD 4.4.May 1, 2001 | Debian |