57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
#include "__call.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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__call::__call(coreutils::ZString &in, coreutils::MString &out, Global &global) : Tag(in, out, global) {
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if(hasContainer)
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throw coreutils::Exception("call cannot have a container.");
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if(!variableDefined(coreutils::ZString("pgm")))
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throw coreutils::Exception("pgm keyword must be specified.");
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argv[0] = variables["pgm"].c_str(); // TODO: Need to peel off the program name only and pass as argv[0].
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for(ix = 1; ix <= 50; ++ix) {
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coreutils::MString arg("arg");
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arg << ix;
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if(variableDefined(arg))
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argv[ix] = variables[arg].c_str();
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else
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break;
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}
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argv[ix] == NULL;
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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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coreutils::ZString input(variables[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[0]);
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dup2(fdi[0], 0);
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}
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rc = execve(variables["pgm"].c_str(), argv, NULL);
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close(fdo[1]);
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std::cout << "rc: " << rc << std::endl;
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exit(rc);
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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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