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commit 45e9f3c660c872e93588cf1c0b74c192f2c8c3d5
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Author: Olivier Houchard <ohouchard@haproxy.com>
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Date: Wed Sep 26 15:09:58 2018 +0200
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BUG/MEDIUM: buffers: Make sure we don't wrap in buffer_insert_line2/replace2.
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In buffer_insert_line2() and buffer_replace2(), we can't afford to wrap,
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so don't use b_tail to check if we do, directly use b->p + b->i instead.
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This should be backported to previous versions.
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(cherry picked from commit 363c745569b6ffd8f095d2b7758131d08aa27219)
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Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
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[cf: This patch was adapted and its commit message too. Because of the
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refactoring of the buffer's API in 1.9, the original patch fixes same bug in
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ci_insert_line2/b_rep_blk.]
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diff --git a/src/buffer.c b/src/buffer.c
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index 167b75ae..6ad38a02 100644
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--- a/src/buffer.c
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+++ b/src/buffer.c
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@@ -107,7 +107,7 @@ int buffer_replace2(struct buffer *b, char *pos, char *end, const char *str, int
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delta = len - (end - pos);
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- if (bi_end(b) + delta > b->data + b->size)
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+ if (b->p + b->i + delta > b->data + b->size)
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return 0; /* no space left */
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if (buffer_not_empty(b) &&
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@@ -146,7 +146,7 @@ int buffer_insert_line2(struct buffer *b, char *pos, const char *str, int len)
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delta = len + 2;
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- if (bi_end(b) + delta >= b->data + b->size)
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+ if (b->p + b->i + delta >= b->data + b->size)
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return 0; /* no space left */
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if (buffer_not_empty(b) &&
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