/* A tar (tape archiver) program.
- Copyright (C) 1988, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
+ Copyright (C) 1988, 92,93,94,95,96,97, 1999 Free Software Foundation, Inc.
Written by John Gilmore, starting 1985-08-25.
This program is free software; you can redistribute it and/or modify it
#define GLOBAL
#include "common.h"
-#include "backupfile.h"
-enum backup_type get_version ();
-
-/* FIXME: We should use a conversion routine that does reasonable error
- checking -- atol doesn't. For now, punt. */
-#define intconv atol
+#include "xstrtol.h"
time_t get_date ();
\f
/* Miscellaneous. */
-/*------------------------------------------------------------------------.
-| Check if STRING0 is the decimal representation of number, and store its |
-| value. If not a decimal number, return 0. |
-`------------------------------------------------------------------------*/
-
-static int
-check_decimal (const char *string0, uintmax_t *result)
-{
- const char *string = string0;
- uintmax_t value = 0;
-
- do
- switch (*string)
- {
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- {
- uintmax_t v10 = value * 10;
- uintmax_t v10d = v10 + (*string - '0');
- if (v10 / 10 != value || v10d < v10)
- return 0;
- value = v10d;
- }
- break;
-
- default:
- return 0;
- }
- while (*++string);
-
- *result = value;
- return 1;
-}
-
/*----------------------------------------------.
| Doesn't return if stdin already requested. |
`----------------------------------------------*/
int optchar; /* option letter */
int input_files; /* number of input files */
const char *backup_suffix_string;
- const char *version_control_string;
+ const char *version_control_string = NULL;
/* Set some default option values. */
group_option = -1;
backup_suffix_string = getenv ("SIMPLE_BACKUP_SUFFIX");
- version_control_string = getenv ("VERSION_CONTROL");
/* Convert old-style tar call by exploding option element and rearranging
options accordingly. */
*out++ = xstrdup (buffer);
cursor = strchr (OPTION_STRING, *letter);
if (cursor && cursor[1] == ':')
- if (in < argv + argc)
- *out++ = *in++;
- else
- USAGE_ERROR ((0, 0, _("Old option `%c' requires an argument."),
- *letter));
+ {
+ if (in < argv + argc)
+ *out++ = *in++;
+ else
+ USAGE_ERROR ((0, 0, _("Old option `%c' requires an argument."),
+ *letter));
+ }
}
/* Copy all remaining options. */
/* Fall through. */
case 'b':
- blocking_factor = intconv (optarg);
- record_size = blocking_factor * (size_t) BLOCKSIZE;
+ {
+ long l;
+ if (! (xstrtol (optarg, (char **) 0, 10, &l, "") == LONGINT_OK
+ && l == (blocking_factor = l)
+ && 0 < blocking_factor
+ && l == (record_size = l * (size_t) BLOCKSIZE) / BLOCKSIZE))
+ USAGE_ERROR ((0, 0, _("Invalid blocking factor")));
+ }
break;
case OBSOLETE_READ_FULL_RECORDS:
break;
case 'L':
- clear_tarlong (tape_length_option);
- add_to_tarlong (tape_length_option, intconv (optarg));
- mult_tarlong (tape_length_option, 1024);
- multi_volume_option = 1;
+ {
+ unsigned long u;
+ if (xstrtoul (optarg, (char **) 0, 10, &u, "") != LONG_MAX)
+ USAGE_ERROR ((0, 0, _("Invalid tape length")));
+ clear_tarlong (tape_length_option);
+ add_to_tarlong (tape_length_option, u);
+ mult_tarlong (tape_length_option, 1024);
+ multi_volume_option = 1;
+ }
break;
case OBSOLETE_TOUCH:
break;
case GROUP_OPTION:
- if (!gname_to_gid (optarg, &group_option))
+ if (! (strlen (optarg) < GNAME_FIELD_SIZE
+ && gname_to_gid (optarg, &group_option)))
{
uintmax_t g;
- if (!check_decimal (optarg, &g) || g != (gid_t) g)
- ERROR ((TAREXIT_FAILURE, 0, _("Invalid group given on option")));
- else
+ if (xstrtoumax (optarg, (char **) 0, 10, &g, "") == LONGINT_OK
+ && g == (gid_t) g)
group_option = g;
+ else
+ ERROR ((TAREXIT_FAILURE, 0, _("Invalid group given on option")));
}
break;
break;
case OWNER_OPTION:
- if (!uname_to_uid (optarg, &owner_option))
+ if (! (strlen (optarg) < UNAME_FIELD_SIZE
+ && uname_to_uid (optarg, &owner_option)))
{
uintmax_t u;
- if (!check_decimal (optarg, &u) || u != (uid_t) u)
- ERROR ((TAREXIT_FAILURE, 0, _("Invalid owner given on option")));
- else
+ if (xstrtoumax (optarg, (char **) 0, 10, &u, "") == LONGINT_OK
+ && u == (uid_t) u)
owner_option = u;
+ else
+ ERROR ((TAREXIT_FAILURE, 0, _("Invalid owner given on option")));
}
break;
break;
case RECORD_SIZE_OPTION:
- record_size = intconv (optarg);
- if (record_size % BLOCKSIZE != 0)
- USAGE_ERROR ((0, 0, _("Record size must be a multiple of %d."),
- BLOCKSIZE));
- blocking_factor = record_size / BLOCKSIZE;
+ {
+ uintmax_t u;
+ if (! (xstrtoumax (optarg, (char **) 0, 10, &u, "") == LONG_MAX
+ && u == (size_t) u))
+ USAGE_ERROR ((0, 0, _("Invalid record size")));
+ record_size = u;
+ if (record_size % BLOCKSIZE != 0)
+ USAGE_ERROR ((0, 0, _("Record size must be a multiple of %d."),
+ BLOCKSIZE));
+ blocking_factor = record_size / BLOCKSIZE;
+ }
break;
case RSH_COMMAND_OPTION:
printf ("tar (GNU %s) %s\n", PACKAGE, VERSION);
fputs (_("\
\n\
-Copyright (C) 1988, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.\n"),
+Copyright (C) 1988, 92,93,94,95,96,97,98, 1999 Free Software Foundation, Inc.\n"),
stdout);
fputs (_("\
This is free software; see the source for copying conditions. There is NO\n\
simple_backup_suffix = xstrdup (backup_suffix_string);
if (backup_option)
- backup_type = get_version (version_control_string);
+ backup_type = xget_version ("--backup", version_control_string);
}
\f
/* Tar proper. */
projects / chaz / tar / blobdiff