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add die() to log an error message and exit with a single call

Almost all occurences of err() are either immediately followed by
exit(EXIT_FAILURE), usage(argv[0]) (which itself then calls
exit(EXIT_FAILURE), or that is what's done immediately after returning
from the function that calls err(). Modify the errfn macro so that its
instantiations can include exit(EXIT_FAILURE) at the end, and use that
to create a new function die() that will log an error and then
exit.

Signed-off-by: Laine Stump <laine@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Laine Stump 2023-02-15 03:24:30 -05:00 committed by Stefano Brivio
parent 193385bd2f
commit dac4af81e3
2 changed files with 10 additions and 5 deletions

1
log.h
View file

@ -10,6 +10,7 @@
#define LOGFILE_CUT_RATIO 30 /* When full, cut ~30% size */
#define LOGFILE_SIZE_MIN (5UL * MAX(BUFSIZ, PAGE_SIZE))
void die(const char *format, ...);
void err(const char *format, ...);
void warn(const char *format, ...);
void info(const char *format, ...);