X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Ftar.c;h=35d8dd8c793c7cdc4095f3fd697f5066ba2b83ef;hb=bc88be110bc8d49c4e8ec5530b8238607afdb1fc;hp=10ac93c699a894620baf8c372d88724f1eb8a900;hpb=562d543b2dda9c6d8d6a2995fb9127f5bae58fb4;p=chaz%2Ftar diff --git a/src/tar.c b/src/tar.c index 10ac93c..35d8dd8 100644 --- a/src/tar.c +++ b/src/tar.c @@ -14,7 +14,7 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., - 59 Place - Suite 330, Boston, MA 02111-1307, USA. */ + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "system.h" @@ -27,12 +27,7 @@ #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 (); @@ -50,48 +45,6 @@ static void usage PARAMS ((int)); /* 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. | `----------------------------------------------*/ @@ -443,7 +396,7 @@ or a device. *This* `tar' defaults to `-f%s -b%d'.\n"), DEFAULT_ARCHIVE, DEFAULT_BLOCKING); fputs (_("\ \n\ -Report bugs to .\n"), +Report bugs to .\n"), stdout); } exit (status); @@ -487,7 +440,7 @@ decode_options (int argc, char *const *argv) 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. */ @@ -500,7 +453,6 @@ decode_options (int argc, char *const *argv) 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. */ @@ -592,8 +544,14 @@ decode_options (int argc, char *const *argv) /* 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: @@ -693,10 +651,15 @@ decode_options (int argc, char *const *argv) 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: @@ -856,10 +819,11 @@ decode_options (int argc, char *const *argv) && 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; @@ -886,10 +850,11 @@ decode_options (int argc, char *const *argv) && 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; @@ -913,11 +878,17 @@ decode_options (int argc, char *const *argv) 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: @@ -1023,7 +994,7 @@ decode_options (int argc, char *const *argv) 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\ @@ -1123,7 +1094,7 @@ Written by John Gilmore and Jay Fenlason.\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); } /* Tar proper. */