kc3-lang/libressl/tls/compat/pread.c
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Hash : 1fb8c9c6
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Date : 2018-03-18T00:38:14
Fix using right functions for file descriptor with MS Visual Studio
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tls/compat/pread.c
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/* * Public domain * * Kinichiro Inoguchi <inoguchi@openbsd.org> */ #ifdef _WIN32 #define NO_REDEF_POSIX_FUNCTIONS #include <unistd.h> ssize_t pread(int d, void *buf, size_t nbytes, off_t offset) { off_t cpos, opos, rpos; ssize_t bytes; if((cpos = lseek(d, 0, SEEK_CUR)) == -1) return -1; if((opos = lseek(d, offset, SEEK_SET)) == -1) return -1; if((bytes = read(d, buf, nbytes)) == -1) return -1; if((rpos = lseek(d, cpos, SEEK_SET)) == -1) return -1; return bytes; } #endif