BSD 2.11 - man page for syserrlst (bsd section 3)
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syserrlst, __errlst - read system error messages from file
Syserrlst(3) reads the error message string corresponding to err from the file /etc/syser-
__errlst(3) reads the error message string corresponding to err from the file path. The
file path must be in the format described in syserrlst(5).
NULL is returned if err is out of bounds (negative or greater than the highest message
number in /etc/syserrlst or path) or if the error message file can not be opened. It is
the responsibility of the caller (strerror(3)) to check for and properly handle the NULL
NULL if an error was encountered in opening the error message file, if the error was out
of bounds, or if the file did not start with the correct magic number. Otherwise a char *
is returned pointing to a static buffer containing the text of the error message.
syserrlst(3) and __errlst(3) can return any of the errors for the open(2), lseek(2), or
read(2) system calls.
perror(3), strerror(3), syserrlst(5)
syserrlst(3), and __errlst(3) were created for 2.11BSD with the aim of saving 2kb of Data
space in programs which called perror(3), or strerror(3).
The information is stored in a static buffer.
3rd Berkeley Distribution March 26, 1996 SYSERRLST(3)
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