| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #ifdef GPR_POSIX_FILE |
| |
| #include "src/core/support/file.h" |
| |
| #include <errno.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| |
| #include "src/core/support/string.h" |
| |
| FILE *gpr_tmpfile(const char *prefix, char **tmp_filename) { |
| FILE *result = NULL; |
| char *template; |
| int fd; |
| |
| if (tmp_filename != NULL) *tmp_filename = NULL; |
| |
| gpr_asprintf(&template, "/tmp/%s_XXXXXX", prefix); |
| GPR_ASSERT(template != NULL); |
| |
| fd = mkstemp(template); |
| if (fd == -1) { |
| gpr_log(GPR_ERROR, "mkstemp failed for template %s with error %s.", |
| template, strerror(errno)); |
| goto end; |
| } |
| result = fdopen(fd, "w+"); |
| if (result == NULL) { |
| gpr_log(GPR_ERROR, "Could not open file %s from fd %d (error = %s).", |
| template, fd, strerror(errno)); |
| unlink(template); |
| close(fd); |
| goto end; |
| } |
| |
| end: |
| if (result != NULL && tmp_filename != NULL) { |
| *tmp_filename = template; |
| } else { |
| gpr_free(template); |
| } |
| return result; |
| } |
| |
| #endif /* GPR_POSIX_FILE */ |