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Revision: 1.4, Tue Dec 2 09:00:13 2008 UTC (15 years, 7 months ago) by martin Branch: MAIN CVS Tags: preBug9676, postBug9676, TASK_PEP317_1JUNE_2013, TASK-TASK_PEP362_RestfulService_branch-root, TASK-TASK_PEP362_RestfulService_branch-merged_out_from_trunk, TASK-TASK_PEP362_RestfulService_branch-merged_in_to_trunk, TASK-TASK_PEP362_RestfulService_branch-merged_in_from_branch, TASK-TASK_PEP362_RestfulService_branch-branch, TASK-PEP362_RestfulService-root, TASK-PEP362_RestfulService-merged_out_to_branch, TASK-PEP362_RestfulService-merged_out_from_trunk, TASK-PEP362_RestfulService-merged_in_to_trunk, TASK-PEP362_RestfulService-merged_in_from_branch, TASK-PEP362_RestfulService-branch, TASK-PEP348_SCMO-root, TASK-PEP348_SCMO-merged_out_to_branch, TASK-PEP348_SCMO-merged_out_from_trunk, TASK-PEP348_SCMO-merged_in_to_trunk, TASK-PEP348_SCMO-merged_in_from_branch, TASK-PEP348_SCMO-branch, TASK-PEP317_pullop-root, TASK-PEP317_pullop-merged_out_to_branch, TASK-PEP317_pullop-merged_out_from_trunk, TASK-PEP317_pullop-merged_in_to_trunk, TASK-PEP317_pullop-merged_in_from_branch, TASK-PEP317_pullop-branch, RELEASE_2_9_2-RC2, RELEASE_2_9_2-RC1, RELEASE_2_9_2, RELEASE_2_9_1-RC1, RELEASE_2_9_1, RELEASE_2_9_0-RC1, RELEASE_2_9_0-FC, RELEASE_2_9_0, RELEASE_2_9-root, RELEASE_2_9-branch, RELEASE_2_14_1, RELEASE_2_14_0-RC2, RELEASE_2_14_0-RC1, RELEASE_2_14_0, RELEASE_2_14-root, RELEASE_2_14-branch, RELEASE_2_13_0-RC2, RELEASE_2_13_0-RC1, RELEASE_2_13_0-FC, RELEASE_2_13_0, RELEASE_2_13-root, RELEASE_2_13-branch, RELEASE_2_12_1-RC1, RELEASE_2_12_1, RELEASE_2_12_0-RC1, RELEASE_2_12_0-FC, RELEASE_2_12_0, RELEASE_2_12-root, RELEASE_2_12-branch, RELEASE_2_11_2-RC1, RELEASE_2_11_2, RELEASE_2_11_1-RC1, RELEASE_2_11_1, RELEASE_2_11_0-RC1, RELEASE_2_11_0-FC, RELEASE_2_11_0, RELEASE_2_11-root, RELEASE_2_11-branch, RELEASE_2_10_1-RC1, RELEASE_2_10_1, RELEASE_2_10_0-RC2, RELEASE_2_10_0-RC1, RELEASE_2_10_0, RELEASE_2_10-root, RELEASE_2_10-branch, PREAUG25UPDATE, POSTAUG25UPDATE, HPUX_TEST, HEAD, CIMRS_WORK_20130824, BeforeUpdateToHeadOct82011 Changes since 1.3: +6 -6 lines BUG#: 8123 TITLE: Update copyright/license text DESCRIPTION: Fixing trailing spaces in copyright/license text |
/* //%LICENSE//////////////////////////////////////////////////////////////// // // Licensed to The Open Group (TOG) under one or more contributor license // agreements. Refer to the OpenPegasusNOTICE.txt file distributed with // this work for additional information regarding copyright ownership. // Each contributor licenses this file to you under the OpenPegasus Open // Source License; you may not use this file except in compliance with the // License. // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included // in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // ////////////////////////////////////////////////////////////////////////// */ #include "Random.h" #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/time.h> #include <fcntl.h> #include <unistd.h> #include <errno.h> /* **============================================================================== ** ** FillRandomBytes1() ** ** Fills *data* with *size* random bytes using the high-quality random ** number generator device (/dev/urandom). ** **============================================================================== */ static int _fillRandomBytes1(unsigned char* data, size_t size) { size_t numErrors = 0; const size_t MAX_ERRORS_TOLERATED = 20; int fd = open("/dev/urandom", O_RDONLY | O_NONBLOCK); if (fd < 0) return -1; while (size) { ssize_t n = read(fd, data, size); if (n < 1) { if (++numErrors == MAX_ERRORS_TOLERATED) break; if (errno == EAGAIN) continue; break; } size -= n; data += n; } close(fd); return size == 0 ? 0 : -1; } /* **============================================================================== ** ** FillRandomBytes2() ** ** Fills *data* with *size* random bytes using the standard rand() function. ** Note: this function uses srand(), which is generally not considered ** "random" enough for security purposes but it is only used if ** FillRandomBytes1() fails. ** **============================================================================== */ static void _fillRandomBytes2(unsigned char* data, size_t size) { struct timeval tv; /* Seed the random number generator. */ gettimeofday(&tv, 0); /* Flawfinder: ignore */ srand(tv.tv_usec); /* Fill data with random bytes. */ while (size--) *data++ = rand(); } /* **============================================================================== ** ** FillRandomBytes() ** **============================================================================== */ void FillRandomBytes(unsigned char* data, size_t size) { if (_fillRandomBytes1(data, size) != 0) _fillRandomBytes2(data, size); } /* **============================================================================== ** ** RandBytesToHexASCII() ** ** Converts the bytes given by *data* to a hexidecimal sequence of ASCII ** characters. The *ascii* parameter must be twice size plus one (for the ** null terminator). ** **============================================================================== */ void RandBytesToHexASCII( const unsigned char* data, size_t size, char* ascii) { static char _hexDigits[] = { '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F' }; size_t i; size_t j = 0; for (i = 0; i < size; i++) { unsigned char hi = data[i] >> 4; unsigned char lo = 0x0F & data[i]; ascii[j++] = _hexDigits[hi]; ascii[j++] = _hexDigits[lo]; } ascii[j] = '\0'; }
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