Api function
#include <libtasn1.h>
const char * asn1_check_version(const char * req_version);
Required version number, or NULL.
Check that the version of the library is at minimum the requested one and return the version string; return NULL if the condition is not satisfied. If a NULL is passed to this function, no check is done, but the version string is simply returned.
See ASN1_VERSION for a suitable req_version string.
Version string of run-time library, or NULL if the run-time library does not meet the required version number.
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