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Eliminated seeks so that we work correctly on pipes, and removed reliance on

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undefined evaluation ordering.  Thanks to Anthony Towns for explanation and
solution.
This commit is contained in:
Matt Kraai 2001-04-18 14:49:55 +00:00
parent bcfeb2ac44
commit b181056e06
3 changed files with 27 additions and 6 deletions
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11
archival/libunarchive/decompress_unzip.c
View File

@ -904,6 +904,7 @@ extern int unzip(FILE *l_in_file, FILE *l_out_file)
int method;
typedef void (*sig_type) (int);
int exit_code=0; /* program exit code */
int i;
in_file = l_in_file;
out_file = l_out_file;
@ -949,10 +950,16 @@ extern int unzip(FILE *l_in_file, FILE *l_out_file)
flags = (unsigned char) fgetc(in_file);
/* Ignore time stamp(4), extra flags(1), OS type(1) */
fseek(in_file, 6, SEEK_CUR);
for (i = 0; i < 6; i++)
fgetc(in_file);
if ((flags & extra_field) != 0) {
fseek(in_file, (size_t) fgetc(in_file) + ((size_t)fgetc(in_file) << 8), SEEK_CUR);
size_t extra;
extra = fgetc(in_file);
extra += fgetc(in_file) << 8;
for (i = 0; i < extra; i++)
fgetc(in_file);
}
/* Discard original name if any */

11
archival/libunarchive/unzip.c
View File

@ -904,6 +904,7 @@ extern int unzip(FILE *l_in_file, FILE *l_out_file)
int method;
typedef void (*sig_type) (int);
int exit_code=0; /* program exit code */
int i;
in_file = l_in_file;
out_file = l_out_file;
@ -949,10 +950,16 @@ extern int unzip(FILE *l_in_file, FILE *l_out_file)
flags = (unsigned char) fgetc(in_file);
/* Ignore time stamp(4), extra flags(1), OS type(1) */
fseek(in_file, 6, SEEK_CUR);
for (i = 0; i < 6; i++)
fgetc(in_file);
if ((flags & extra_field) != 0) {
fseek(in_file, (size_t) fgetc(in_file) + ((size_t)fgetc(in_file) << 8), SEEK_CUR);
size_t extra;
extra = fgetc(in_file);
extra += fgetc(in_file) << 8;
for (i = 0; i < extra; i++)
fgetc(in_file);
}
/* Discard original name if any */

11
libbb/unzip.c
View File

@ -904,6 +904,7 @@ extern int unzip(FILE *l_in_file, FILE *l_out_file)
int method;
typedef void (*sig_type) (int);
int exit_code=0; /* program exit code */
int i;
in_file = l_in_file;
out_file = l_out_file;
@ -949,10 +950,16 @@ extern int unzip(FILE *l_in_file, FILE *l_out_file)
flags = (unsigned char) fgetc(in_file);
/* Ignore time stamp(4), extra flags(1), OS type(1) */
fseek(in_file, 6, SEEK_CUR);
for (i = 0; i < 6; i++)
fgetc(in_file);
if ((flags & extra_field) != 0) {
fseek(in_file, (size_t) fgetc(in_file) + ((size_t)fgetc(in_file) << 8), SEEK_CUR);
size_t extra;
extra = fgetc(in_file);
extra += fgetc(in_file) << 8;
for (i = 0; i < extra; i++)
fgetc(in_file);
}
/* Discard original name if any */