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cache.c: fix error checking in print_slot()
The change to print_slot() in cdc6b2f8e7
made
the function return correct errno for read errors while ignoring write errors,
which is not what was intended. This patch tries to rectify things.
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
This commit is contained in:
parent
af2e75616d
commit
dd7c172542
11
cache.c
11
cache.c
@ -81,16 +81,19 @@ static int close_slot(struct cache_slot *slot)
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/* Print the content of the active cache slot (but skip the key). */
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/* Print the content of the active cache slot (but skip the key). */
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static int print_slot(struct cache_slot *slot)
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static int print_slot(struct cache_slot *slot)
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{
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{
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ssize_t i;
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ssize_t i, j;
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i = lseek(slot->cache_fd, slot->keylen + 1, SEEK_SET);
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i = lseek(slot->cache_fd, slot->keylen + 1, SEEK_SET);
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if (i != slot->keylen + 1)
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if (i != slot->keylen + 1)
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return errno;
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return errno;
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while((i = xread(slot->cache_fd, slot->buf, sizeof(slot->buf))) > 0)
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do {
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i = xwrite(STDOUT_FILENO, slot->buf, i);
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i = j = xread(slot->cache_fd, slot->buf, sizeof(slot->buf));
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if (i > 0)
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j = xwrite(STDOUT_FILENO, slot->buf, i);
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} while (i > 0 && j == i);
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if (i < 0)
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if (i < 0 || j != i)
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return errno;
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return errno;
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else
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else
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return 0;
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return 0;
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