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| author | Jim Meyering <jim@meyering.net> | 1994-12-16 05:45:57 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1994-12-16 05:45:57 +0000 |
| commit | 73d8d0a43fb21cafc27b2380016a2e534c93763a (patch) | |
| tree | 99954717848d026bd7ca0fd856607c6ed9b07b93 /src/tail.c | |
| parent | 7323b7d9f2c7710bf836cd31213b7e0c644cebe5 (diff) | |
| download | coreutils-73d8d0a43fb21cafc27b2380016a2e534c93763a.tar.xz | |
Include "error.h" instead of simply declaring `void error ();'.
(main): Don't advance optarg past leading sign -- otherwise, we'd
be making tail accept invalid options like `-+1'.
(tail_file): Fix call to error with %s in format, but no corresponding argument.
Diffstat (limited to 'src/tail.c')
| -rw-r--r-- | src/tail.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/tail.c b/src/tail.c index a2025f3ce..a63329b7b 100644 --- a/src/tail.c +++ b/src/tail.c @@ -55,6 +55,7 @@ #include "system.h" #include "version.h" #include "xstrtol.h" +#include "error.h" /* Disable assertions. Some systems have broken assert macros. */ #define NDEBUG 1 @@ -106,7 +107,6 @@ enum header_mode }; char *xmalloc (); -void error (); int safe_read (); static int file_lines (); @@ -249,13 +249,11 @@ main (argc, argv) if (*optarg == '+') { from_start = 1; - ++optarg; } - else if (*optarg == '-') - ++optarg; - /* FIXME: make sure tmp_long can't be negative. */ s_err = xstrtol (optarg, NULL, 0, &tmp_long, 1); + if (tmp_long < 0) + tmp_long = -tmp_long; n_units = tmp_long; if (s_err != LONGINT_OK) { @@ -401,7 +399,8 @@ tail_file (filename, n_units, filenum) } else if (!S_ISREG (stats.st_mode)) { - error (0, 0, "%s: cannot follow end of non-regular file"); + error (0, 0, "%s: cannot follow end of non-regular file", + filename); errors = 1; } if (errors) |