vector: Prevent NULL argument to memcpy.
Headers declare that memcpy does not accept NULL argument for the first two parameters. Add a conditional block to prevent memcpy and ast_free from running on vectors with NULL element array. ASTERISK-26526 #close Change-Id: I988a476bb5fcfcbd3f6d6c6b3e7769e4f9629b71
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@ -172,9 +172,11 @@
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typeof((vec)->elems) new_elems = ast_calloc(1, \
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new_max * sizeof(*new_elems)); \
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if (new_elems) { \
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memcpy(new_elems, (vec)->elems, \
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(vec)->current * sizeof(*new_elems)); \
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ast_free((vec)->elems); \
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if ((vec)->elems) { \
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memcpy(new_elems, (vec)->elems, \
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(vec)->current * sizeof(*new_elems)); \
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ast_free((vec)->elems); \
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} \
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(vec)->elems = new_elems; \
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(vec)->max = new_max; \
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} else { \
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