mirror of
https://github.com/FAUSheppy/colorredstderr-mirror
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58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* Helper functions/macros for example files.
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*
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* Copyright (C) 2013-2014 Simon Ruderich
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define FORKED_TEST(pid) \
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pid = fork(); \
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if (pid == -1) { \
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perror("fork"); \
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exit(EXIT_FAILURE); \
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} else if (pid != 0) { \
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int status; \
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if (waitpid(pid, &status, 0) == -1) { \
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perror("waitpid"); \
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exit(EXIT_FAILURE); \
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} \
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if (WIFEXITED(status)) { \
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printf("exit code: %d\n", WEXITSTATUS(status)); \
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} else { \
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printf("child terminated!\n"); \
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} \
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fflush(stdout); \
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} else
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static ssize_t xwrite(int fd, void const *buf, size_t count) {
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ssize_t result = write(fd, buf, count);
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if (result == -1) {
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perror("write");
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exit(EXIT_FAILURE);
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}
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/* Ignore short writes here. Doesn't matter for test cases. */
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return result;
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}
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static int xdup2(int oldfd, int newfd) {
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int result = dup2(oldfd, newfd);
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if (result == -1) {
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perror("dup2");
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exit(EXIT_FAILURE);
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}
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return result;
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}
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