forked from lix-project/lix
commit
9233ac7c56
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@ -20,6 +20,7 @@
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/utsname.h>
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#include <sys/select.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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@ -13,6 +13,7 @@
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/select.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <utime.h>
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@ -942,16 +942,16 @@ string runProgram(Path program, bool searchPath, const Strings & args,
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checkInterrupt();
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/* Create a pipe. */
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Pipe stdout, stdin;
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stdout.create();
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if (!input.empty()) stdin.create();
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Pipe out, in;
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out.create();
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if (!input.empty()) in.create();
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/* Fork. */
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Pid pid = startProcess([&]() {
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if (dup2(stdout.writeSide, STDOUT_FILENO) == -1)
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if (dup2(out.writeSide, STDOUT_FILENO) == -1)
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throw SysError("dupping stdout");
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if (!input.empty()) {
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if (dup2(stdin.readSide, STDIN_FILENO) == -1)
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if (dup2(in.readSide, STDIN_FILENO) == -1)
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throw SysError("dupping stdin");
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}
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@ -967,16 +967,16 @@ string runProgram(Path program, bool searchPath, const Strings & args,
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throw SysError(format("executing ‘%1%’") % program);
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});
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stdout.writeSide.close();
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out.writeSide.close();
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/* FIXME: This can deadlock if the input is too long. */
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if (!input.empty()) {
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stdin.readSide.close();
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writeFull(stdin.writeSide, input);
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stdin.writeSide.close();
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in.readSide.close();
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writeFull(in.writeSide, input);
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in.writeSide.close();
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}
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string result = drainFD(stdout.readSide);
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string result = drainFD(out.readSide);
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/* Wait for the child to finish. */
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int status = pid.wait(true);
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