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hsts: explicitly skip blank lines

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Keep blank lines or lines containing only whitespace to make it all
the way to the more expensive sscanf call in hsts_add.

Closes: #13603
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
This commit is contained in:
Daniel Gustafsson 2024-05-14 10:19:41 +02:00
parent 91908f66ad
commit d84a95de11
1 changed files with 5 additions and 2 deletions
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7
lib/hsts.c
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@ -523,8 +523,11 @@ static CURLcode hsts_load(struct hsts *h, const char *file)
char *lineptr = Curl_dyn_ptr(&buf);
while(*lineptr && ISBLANK(*lineptr))
lineptr++;
if(*lineptr == '#')
/* skip commented lines */
/*
* Skip empty or commented lines, since we know the line will have a
* trailing newline from Curl_get_line we can treat length 1 as empty.
*/
if((*lineptr == '#') || strlen(lineptr) <= 1)
continue;
hsts_add(h, lineptr);