47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#include "__system.h"
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#include "Exception.h"
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#include "MString.h"
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#include <stdlib.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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namespace jet {
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__system::__system(coreutils::ZString &in, coreutils::MString &parentOut, Global &global, Tag *parent) : Tag(in, parentOut, global, parent) {
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if(hasContainer)
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throw coreutils::Exception("system tag cannot have a container.");
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if(!variableDefined(coreutils::ZString("cmd")))
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throw coreutils::Exception("cmd keyword must be specified.");
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pipe(fdo);
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pid = fork();
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if(pid == 0) {
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close(fdo[0]);
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dup2(fdo[1], 1);
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if(variableDefined("input")) {
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resolveKeyword("input");
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coreutils::ZString input(variables["input"]);
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pipe(fdi);
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if(fork() == 0) {
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close(fdi[0]);
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write(fdi[1], input.getData(), input.getLength());
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close(fdi[1]);
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exit(0);
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}
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close(fdi[1]);
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dup2(fdi[0], 0);
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}
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system(variables["cmd"].c_str());
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close(fdo[1]);
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exit(errno);
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}
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close(fdo[1]);
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if(variableDefined("name"))
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global.variables[variables["name"]].read(fdo[0]);
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else
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out.read(fdo[0]);
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waitpid(pid, &status, 0);
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}
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}
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