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68ea80cfdd
We already have virAsprintf, so picking a similar name helps for seeing a similar purpose. Furthermore, the prefix V before printf generally implies 'va_list', even though this variant was '...', and the old name got in the way of adding a new va_list version. global rename performed with: $ git grep -l virBufferVSprintf \ | xargs -L1 sed -i 's/virBufferVSprintf/virBufferAsprintf/g' then revert the changes in ChangeLog-old.
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "internal.h"
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#include "util.h"
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#include "testutils.h"
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#include "buf.h"
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#include "memory.h"
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#define TEST_ERROR(...) \
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do { \
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if (virTestGetDebug()) \
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fprintf(stderr, __VA_ARGS__); \
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} while (0)
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struct testInfo {
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int doEscape;
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};
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static int testBufInfiniteLoop(const void *data ATTRIBUTE_UNUSED)
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{
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virBuffer bufinit = VIR_BUFFER_INITIALIZER;
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virBufferPtr buf = &bufinit;
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char *addstr = NULL, *bufret = NULL;
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int ret = -1;
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const struct testInfo *info = data;
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/* This relies of virBuffer internals, so may break if things change
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* in the future */
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virBufferAddChar(buf, 'a');
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if (buf->a != 1002 || buf->b != 1) {
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TEST_ERROR("Buf was not expected size, size=%d use=%d\n",
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buf->a, buf->b);
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goto out;
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}
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/*
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* Infinite loop triggers if:
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* (strlen + 1 > 1000) && (strlen == buf-size - buf-use - 1)
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*/
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if (virAsprintf(&addstr, "%*s", buf->a - buf->b - 1, "a") < 0) {
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goto out;
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}
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if (info->doEscape)
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virBufferEscapeString(buf, "%s", addstr);
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else
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virBufferAsprintf(buf, "%s", addstr);
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ret = 0;
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out:
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bufret = virBufferContentAndReset(buf);
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if (!bufret) {
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TEST_ERROR("Buffer had error set");
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ret = -1;
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}
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VIR_FREE(addstr);
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VIR_FREE(bufret);
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return ret;
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}
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static int
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mymain(void)
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{
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int ret = 0;
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#define DO_TEST(msg, cb, data) \
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do { \
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struct testInfo info = { data }; \
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if (virtTestRun("Buf: " msg, 1, cb, &info) < 0) \
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ret = -1; \
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} while (0)
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DO_TEST("EscapeString infinite loop", testBufInfiniteLoop, 1);
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DO_TEST("VSprintf infinite loop", testBufInfiniteLoop, 0);
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return(ret==0 ? EXIT_SUCCESS : EXIT_FAILURE);
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}
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VIRT_TEST_MAIN(mymain)
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