Author: rwatson
Date: Fri Oct 31 15:14:40 2008
New Revision: 184511
URL: http://svn.freebsd.org/changeset/base/184511
Log:
In example use of err(3) and errx(3), use sysexits(3) constants.
MFC after: 3 days
Submitted by: Bruce Cran <bruce at cran dot org dot uk>
Modified:
head/lib/libc/gen/err.3
Modified: head/lib/libc/gen/err.3
==============================================================================
--- head/lib/libc/gen/err.3 Fri Oct 31 15:11:01 2008 (r184510)
+++ head/lib/libc/gen/err.3 Fri Oct 31 15:14:40 2008 (r184511)
@@ -178,15 +178,16 @@ or a null pointer
Display the current errno information string and exit:
.Bd -literal -offset indent
if ((p = malloc(size)) == NULL)
- err(1, NULL);
+ err(EX_OSERR, NULL);
if ((fd = open(file_name, O_RDONLY, 0)) == -1)
- err(1, "%s", file_name);
+ err(EX_NOINPUT, "%s", file_name);
.Ed
.Pp
Display an error message and exit:
.Bd -literal -offset indent
if (tm.tm_hour < START_TIME)
- errx(1, "too early, wait until %s", start_time_string);
+ errx(EX_DATAERR, "too early, wait until %s",
+ start_time_string);
.Ed
.Pp
Warn of an error:
@@ -195,7 +196,7 @@ if ((fd = open(raw_device, O_RDONLY, 0))
warnx("%s: %s: trying the block device",
raw_device, strerror(errno));
if ((fd = open(block_device, O_RDONLY, 0)) == -1)
- err(1, "%s", block_device);
+ err(EX_OSFILE, "%s", block_device);
.Ed
.Pp
Warn of an error without using the global variable
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