Initialize cert either to null or to a valid X509_REQ object (X509_REQ_new()) before d2i.
If null a new object will be allocated and the pointer set; if nonnull the object will be reused. See the man page for d2i_X509 especially under WARNINGS. Lots of info about d2i_x and i2d_x routines for all types x is in the d2i/i2d_X509_* man page apparently for historical reasons. Aside- if you care about portability to Windows, fopen DER files with mode including "b". From: owner-openssl-us...@openssl.org [mailto:owner-openssl-us...@openssl.org] On Behalf Of Nikita Koptelov Sent: Tuesday, March 18, 2014 08:21 To: openssl-users@openssl.org Subject: *** Spam *** CRYPTO_add_lock segfault when attempting to open X509 CSR Good day, I'm trying to use openSSL libs to parse certificate request, but something goes wrong. The thread throws segfault around: 0x7ffff77fee0a <+0x007a> mov %r8d,%ecx 0x7ffff77fee0d <+0x007d> mov %r13d,(%r12) 0x7ffff77fee11 <+0x0081> callq 0x7ffff77fe000 <CRYPTO_lock@plt> in CRYPTO_add_lock when using d2i_X509_REQ_fp(). Could anyone help me with the problem? Code: FILE* fp; FILE* fperr; fp = fopen(path,"r"); if (fp != NULL) { fperr = fopen("/home/utrk/err","w"); X509_REQ *cert; d2i_X509_REQ_fp(fp,&cert); if (!d2i_X509_REQ_fp(fp,&cert)) { ERR_print_errors_fp(fperr); } fclose(fp); fclose(fperr); } Full backtrace: http://pastebin.com/q5JkX3fh Best wishes, Nick
