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Fix wc(1) output for large files

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Previously, we used the System V output format:
	"%7d%7d%7d %s\n"
The problem here is, that if any number has more than six digits, the
result looks like one big number, as we don't mandate spaces.

POSIX says the output format should rather be
	"%d %d %d %s\n"
but in this case we wouldn't get consistent results.

To serve both camps, I changed it to the following:
	"%6d %6d %6d %s\n"
This won't change the output for normal values, but also
prevent the output of large files to be ambiguous.
This commit is contained in:
FRIGN
2016-02-24 15:40:50 +01:00
committed by sin
parent a392cd475e
commit 79e8e330cb
1 changed files with 15 additions and 6 deletions
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21
wc.c
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@@ -15,12 +15,21 @@ output(const char *str, size_t nc, size_t nl, size_t nw)
int noflags = !cmode && !lflag && !wflag; int noflags = !cmode && !lflag && !wflag;
int first = 1; int first = 1;
if (lflag || noflags) if (lflag || noflags) {
printf("%*.1zu", first ? (first = 0) : 7, nl); if (!first)
if (wflag || noflags) putchar(' ');
printf("%*.1zu", first ? (first = 0) : 7, nw); printf("%*.1zu", first ? (first = 0) : 6, nl);
if (cmode || noflags) }
printf("%*.1zu", first ? (first = 0) : 7, nc); if (wflag || noflags) {
if (!first)
putchar(' ');
printf("%*.1zu", first ? (first = 0) : 6, nw);
}
if (cmode || noflags) {
if (!first)
putchar(' ');
printf("%*.1zu", first ? (first = 0) : 6, nc);
}
if (str) if (str)
printf(" %s", str); printf(" %s", str);
putchar('\n'); putchar('\n');