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check the return value of snprintf

pull/3/head
yuqing 2014-12-06 12:41:19 +08:00
parent e7b2874e2a
commit 0a87130ee0
2 changed files with 12 additions and 0 deletions
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4
src/base64.c
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@ -50,6 +50,10 @@ void base64_set_line_separator(struct base64_context *context, \
{ {
context->line_sep_len = snprintf(context->line_separator, \ context->line_sep_len = snprintf(context->line_separator, \
sizeof(context->line_separator), "%s", pLineSeparator); sizeof(context->line_separator), "%s", pLineSeparator);
if (context->line_sep_len >= sizeof(context->line_separator))
{
context->line_sep_len = sizeof(context->line_separator) - 1;
}
} }
void base64_init_ex(struct base64_context *context, const int nLineLength, \ void base64_init_ex(struct base64_context *context, const int nLineLength, \

8
src/http_func.c
View File

@ -55,6 +55,14 @@ int get_url_content_ex(const char *url, const int url_len,
alloc_size = *content_len - 1; alloc_size = *content_len - 1;
} }
*content_len = 0; *content_len = 0;
if (url_len > sizeof(out_buff) - 128)
{
sprintf(error_info, "file: "__FILE__", line: %d, "
"url too long, url length: %d > %d", __LINE__,
url_len, (int)(sizeof(out_buff) - 128));
return ENAMETOOLONG;
}
if (url_len <= 7 || strncasecmp(url, "http://", 7) != 0) if (url_len <= 7 || strncasecmp(url, "http://", 7) != 0)
{ {