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util: Fix signedness error in lines(), match implementations

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Regression introduced by ed757c0cb0

Mirror the implementation of columns(), since the fd_columns()
functions returns a negative integer for errors.

Also fix columns() to return the unsigned variable instead of the
signed intermediary (they're the same, but better to be explicit).
This commit is contained in:
Colin Walters 2015-01-01 14:57:08 -05:00 committed by Lennart Poettering
parent 6fc25464bf
commit 9bc5cd6d74
1 changed files with 3 additions and 3 deletions
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6
src/shared/util.c
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@ -3456,7 +3456,7 @@ unsigned columns(void) {
c = 80; c = 80;
cached_columns = c; cached_columns = c;
return c; return cached_columns;
} }
int fd_lines(int fd) { int fd_lines(int fd) {
@ -3473,7 +3473,7 @@ int fd_lines(int fd) {
unsigned lines(void) { unsigned lines(void) {
const char *e; const char *e;
unsigned l; int l;
if (_likely_(cached_lines > 0)) if (_likely_(cached_lines > 0))
return cached_lines; return cached_lines;
@ -3481,7 +3481,7 @@ unsigned lines(void) {
l = 0; l = 0;
e = getenv("LINES"); e = getenv("LINES");
if (e) if (e)
(void) safe_atou(e, &l); (void) safe_atoi(e, &l);
if (l <= 0) if (l <= 0)
l = fd_lines(STDOUT_FILENO); l = fd_lines(STDOUT_FILENO);