diff options
| author | Jim Meyering <jim@meyering.net> | 1995-12-15 03:20:40 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1995-12-15 03:20:40 +0000 |
| commit | 208fa17ad01c21f5ad3d328a6b85e05ad5e4c9c2 (patch) | |
| tree | 1d236b9e5e8467d3517d34e75f0245ec72ea552f /src/uniq.c | |
| parent | 5a1b7d267a31d811cf53474d92555e85bf2c8f11 (diff) | |
| download | coreutils-208fa17ad01c21f5ad3d328a6b85e05ad5e4c9c2.tar.xz | |
(main): Use xstrtol instead of atoi.
Diffstat (limited to 'src/uniq.c')
| -rw-r--r-- | src/uniq.c | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/src/uniq.c b/src/uniq.c index aa2b4e441..2d261de50 100644 --- a/src/uniq.c +++ b/src/uniq.c @@ -25,10 +25,24 @@ #include <stdio.h> #include <getopt.h> #include <sys/types.h> + +#if HAVE_LIMITS_H +# include <limits.h> +#endif + +#ifndef UINT_MAX +# define UINT_MAX ((unsigned int) ~(unsigned int) 0) +#endif + +#ifndef INT_MAX +# define INT_MAX ((int) (UINT_MAX >> 1)) +#endif + #include "system.h" #include "linebuffer.h" #include "version.h" #include "error.h" +#include "xstrtol.h" /* Undefine, to avoid warning about redefinition on some systems. */ #undef min @@ -302,11 +316,25 @@ main (int argc, char **argv) break; case 'f': /* Like '-#'. */ - skip_fields = atoi (optarg); + { + long int tmp_long; + if (xstrtol (optarg, NULL, 10, &tmp_long, NULL) != LONGINT_OK + || tmp_long <= 0 || tmp_long > INT_MAX) + error (1, 0, _("invalid number of fields to skip: `%s'"), + optarg); + skip_fields = (int) tmp_long; + } break; case 's': /* Like '+#'. */ - skip_chars = atoi (optarg); + { + long int tmp_long; + if (xstrtol (optarg, NULL, 10, &tmp_long, NULL) != LONGINT_OK + || tmp_long <= 0 || tmp_long > INT_MAX) + error (1, 0, _("invalid number of bytes to skip: `%s'"), + optarg); + skip_chars = (int) tmp_long; + } break; case 'u': @@ -314,7 +342,14 @@ main (int argc, char **argv) break; case 'w': - check_chars = atoi (optarg); + { + long int tmp_long; + if (xstrtol (optarg, NULL, 10, &tmp_long, NULL) != LONGINT_OK + || tmp_long <= 0 || tmp_long > INT_MAX) + error (1, 0, _("invalid number of bytes to compare: `%s'"), + optarg); + check_chars = (int) tmp_long; + } break; default: @@ -336,7 +371,15 @@ main (int argc, char **argv) /* Interpret non-option arguments with leading `+' only if we haven't seen `--'. */ while (optind < argc && argv[optind][0] == '+') - skip_chars = atoi (argv[optind++]); + { + char *opt_str = argv[optind++]; + long int tmp_long; + if (xstrtol (opt_str, NULL, 10, &tmp_long, NULL) != LONGINT_OK + || tmp_long <= 0 || tmp_long > INT_MAX) + error (1, 0, _("invalid number of bytes to compare: `%s'"), + opt_str); + skip_chars = (int) tmp_long; + } } if (optind < argc) |