115 lines
2.8 KiB
C++
115 lines
2.8 KiB
C++
#include <iostream>
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#include <exception>
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#include <augeas.h>
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#include <stdio.h>
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#include <vector>
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#include <map>
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// This file is currently for testing and training using augeas with C++
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// https://github.com/hercules-team/augeas/blob/master/tests/test-api.c
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static const char *abs_top_srcdir;
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static const char *root = "../root";
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static const char *loadpath = "/opt/homebrew/share/augeas/lenses/dist";
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static void testGet() {
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int r;
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const char *value;
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const char *label;
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struct augeas *aug;
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char *s;
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aug = aug_init(root, loadpath, AUG_NO_STDINC | AUG_NO_LOAD);
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r = aug_load_file(aug, "/etc/hosts");
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r = aug_source(aug, "/files/etc/hosts/1", &s);
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std::cout << "The value read from node: " << s << std::endl;
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aug_close(aug);
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}
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static void readHostsFile() {
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struct augeas *aug;
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int r;
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char *s;
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char *etc_hosts_fn = NULL;
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FILE *hosts_fp = NULL;
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char *hosts_txt = NULL;
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aug = aug_init(root, loadpath, AUG_NO_STDINC | AUG_NO_LOAD);
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r = aug_load_file(aug, "/etc/hosts");
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r = aug_preview(aug, "/files/etc/hosts/1", &s);
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std::cout << s << std::endl;
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free(hosts_txt);
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free(s);
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aug_close(aug);
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}
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/// Get the tree of the /etc/hosts file printed in the console
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/// Implementation based on https://github.com/Nexenta/node-augeas/blob/756276c432cc9e506836800ac9d217bedbbef55c/libaugeas.cc#L784
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static void readHostsTree() {
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struct augeas *aug;
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int r;
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FILE *out = tmpfile();
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aug = aug_init(root, loadpath, AUG_NO_STDINC | AUG_NO_LOAD);
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const std::string matchPath = "/files/etc/hosts/*";
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r = aug_load_file(aug, "/etc/hosts");
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r = aug_print(aug, out,"/files/etc/hosts/*");
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std::map <std::string, std::string> stdBindList;
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std::map <std::string , std::string>::iterator pos;
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char line[256];
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rewind(out);
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while (fgets(line, 256, out) != NULL) {
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// remove end of line
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line[strlen(line) - 1] = '\0';
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std::string s = line;
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;
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// skip comments
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if (s.find("#comment") != std::string::npos)
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continue;
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s = s.substr(matchPath.length() - 1);
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// split by '=' sign
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size_t eqpos = s.find(" = ");
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if (eqpos == std::string::npos)
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continue;
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// extract key and value
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std::string key = s.substr(0, eqpos);
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std::string value = s.substr(eqpos + 3);
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// remove '"' sign from around value
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value.erase(value.begin());
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value.erase(value.end() - 1);
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stdBindList.insert(std::pair<std::string,std::string>(key,value)); // 2
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}
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fclose(out);
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for (pos = stdBindList.begin();pos!=stdBindList.end();pos++)
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{
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std::cout << "Key: " << pos->first << ";" << " Value: " << pos->second << std::endl;
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}
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aug_close(aug);
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}
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int main(int argc, char *argv[]) {
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testGet();
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readHostsTree();
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return 0;
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} |