forked from wownero/wownero
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89 lines
2.6 KiB
89 lines
2.6 KiB
// Copyright (c) 2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <errno.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include "misc_log_ex.h"
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#include "exec.h"
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namespace tools
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{
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int exec(const char *filename, char * const argv[], bool wait)
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{
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pid_t pid = fork();
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if (pid < 0)
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{
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MERROR("Error forking: " << strerror(errno));
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return -1;
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}
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// child
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if (pid == 0)
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{
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char *envp[] = {NULL};
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execve(filename, argv, envp);
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MERROR("Failed to execve: " << strerror(errno));
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return -1;
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}
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// parent
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if (pid > 0)
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{
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if (!wait)
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return 0;
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while (1)
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{
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int wstatus = 0;
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pid_t w = waitpid(pid, &wstatus, WUNTRACED | WCONTINUED);
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if (w < 0) {
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MERROR("Error waiting for child: " << strerror(errno));
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return -1;
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}
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if (WIFEXITED(wstatus))
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{
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MINFO("Child exited with " << WEXITSTATUS(wstatus));
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return WEXITSTATUS(wstatus);
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}
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if (WIFSIGNALED(wstatus))
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{
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MINFO("Child killed by " << WEXITSTATUS(wstatus));
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return WEXITSTATUS(wstatus);
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}
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}
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}
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MERROR("Secret passage found");
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return -1;
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}
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}
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