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32 lines
868 B
C++
32 lines
868 B
C++
3 years ago
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#ifndef B89BC3C5_AD59_4765_AA06_8110111D316F
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#define B89BC3C5_AD59_4765_AA06_8110111D316F
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#include <cstdio>
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#include <stdexcept>
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/// @brief Executes given command and optionally sends buffer to handler
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/// @param cmd is the command
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/// @param handler is the handler(char*)-function
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/// @return Return-code form command
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int exec(const char* cmd, const int *(handler)(char*) = nullptr){
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const int buf_size = 256;
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char buf[buf_size];
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// Open execution-pipe
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FILE *pipe = popen(cmd, "r");
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if (!pipe) {
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throw std::runtime_error("popen() failed!");
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}
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while (fgets(buf, buf_size, pipe) != nullptr) {
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// When a handler is specified, call it
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if(handler != nullptr) (*handler)(buf);
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}
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// Close pipe and read exit-code
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return WEXITSTATUS(pclose(pipe));
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}
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#endif /* B89BC3C5_AD59_4765_AA06_8110111D316F */
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