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era_copy
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Limit by input size

master
Vitaliy Filippov 2023-05-13 11:08:04 +03:00
parent 5af1368bb6
commit fd1685098a
2 changed files with 18 additions and 2 deletions
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4
Makefile
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@ -2,8 +2,8 @@ all: era_copy era_apply
install: all
cp era_copy era_apply /usr/local/bin
era_copy: era_copy.c
gcc -o era_copy -Wall era_copy.c
gcc -g -o era_copy -Wall era_copy.c
era_apply: era_apply.c
gcc -o era_apply -Wall era_apply.c
gcc -g -o era_apply -Wall era_apply.c
blocksum: blocksum.c
gcc -O3 -lssl -lcrypto -o blocksum blocksum.c

16
era_copy.c
View File

@ -45,9 +45,11 @@ void read_era_invalidate_and_copy(FILE *fp, int src, int era_block_size, int pri
// read input XML
char buf[XML_BUFSIZE] = { 0 };
char c = 0;
long long srcsize = 0;
long long start = 0, length = 0, total = 0;
long long *offsets = NULL;
int i, offsets_alloc = 0, offsets_len = 0;
lseek64(src, 0, SEEK_SET);
if (fgets(buf, XML_BUFSIZE, fp) == NULL)
{
fprintf(stderr, "Input block list is empty\n");
@ -91,6 +93,20 @@ void read_era_invalidate_and_copy(FILE *fp, int src, int era_block_size, int pri
}
if (src >= 0)
{
srcsize = lseek64(src, 0, SEEK_END);
if (srcsize < 0)
{
fprintf(stderr, "Can't determine input size\n");
exit(1);
}
for (i = 0; i < offsets_len; i += 2)
{
if (offsets[i] >= srcsize)
break;
if (offsets[i]+offsets[i+1] > srcsize)
offsets[i+1] = srcsize-offsets[i];
}
offsets_len = i;
long long copied = 0, prev_copied = 0;
if (print_progress)
{