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gravity update - silently discard unicode BOM if present

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Some adlists in UTF-8 may contain unnecessary unicode BOM at the start of
the file.

This change silently discards these, if present, instead of flagging them
as non-domain entries.

Signed-off-by: Rob Gill <rrobgill@protonmail.com>
This commit is contained in:
Rob Gill
2025-11-09 14:30:59 +10:00
parent dfa29004de
commit 06f5a42a7f
1 changed files with 12 additions and 0 deletions
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12
src/tools/gravity-parseList.c
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@@ -272,6 +272,18 @@ int gravity_parseList(const char *infile, const char *outfile, const char *adlis
unsigned int exact_domains = 0, abp_domains = 0, invalid_domains = 0; unsigned int exact_domains = 0, abp_domains = 0, invalid_domains = 0;
while((read = getline(&line, &len, fpin)) != -1) while((read = getline(&line, &len, fpin)) != -1)
{ {
// Handle UTF-8 BOM (Byte Order Mark) if present at start of file
if (read >= 3 &&
(unsigned char)line[0] == 0xEF &&
(unsigned char)line[1] == 0xBB &&
(unsigned char)line[2] == 0xBF)
{
// Shift line contents left by 3 bytes to remove BOM
memmove(line, line + 3, read - 3);
read -= 3;
}
// Update total read bytes // Update total read bytes
total_read += read; total_read += read;
lineno++; lineno++;