diff options
Diffstat (limited to 'coreutils/sum.c')
| -rw-r--r-- | coreutils/sum.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/coreutils/sum.c b/coreutils/sum.c index 93f4e22..68a8578 100644 --- a/coreutils/sum.c +++ b/coreutils/sum.c @@ -18,9 +18,6 @@ /* 1 if any of the files read were the standard input */ static int have_read_stdin; -/* make a little more readable and avoid using strcmp for just 2 bytes */ -#define IS_STDIN(s) (s[0] == '-' && s[1] == '\0') - /* Calculate and print the rotated checksum and the size in 1K blocks of file FILE, or of the standard input if FILE is "-". If PRINT_NAME is >1, print FILE next to the checksum and size. @@ -34,7 +31,7 @@ static int bsd_sum_file(const char *file, int print_name) int ch; /* Each character read. */ int ret = 0; - if (IS_STDIN(file)) { + if (LONE_DASH(file)) { fp = stdin; have_read_stdin++; } else { @@ -84,7 +81,7 @@ static int sysv_sum_file(const char *file, int print_name) /* The sum of all the input bytes, modulo (UINT_MAX + 1). */ unsigned int s = 0; - if (IS_STDIN(file)) { + if (LONE_DASH(file)) { fd = 0; have_read_stdin = 1; } else { @@ -103,7 +100,7 @@ static int sysv_sum_file(const char *file, int print_name) release_and_ret: bb_perror_msg(file); RELEASE_CONFIG_BUFFER(buf); - if (!IS_STDIN(file)) + if (NOT_LONE_DASH(file)) close(fd); return 0; } @@ -113,7 +110,7 @@ release_and_ret: s += buf[bytes_read]; } - if (!IS_STDIN(file) && close(fd) == -1) + if (NOT_LONE_DASH(file) && close(fd) == -1) goto release_and_ret; else RELEASE_CONFIG_BUFFER(buf); |