95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
#include <iostream>
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#include <exception>
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#include <augeas.h>
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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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// Puth the Augeas lens path here
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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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int readsz = 0;
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/* Read the original contents of the etc/hosts file */
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if (asprintf(&etc_hosts_fn, "%s/etc/hosts", root) >= 0) {
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hosts_fp = fopen(etc_hosts_fn, "r");
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if (hosts_fp) {
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hosts_txt = static_cast<char *>(calloc(sizeof(char), 4096));
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if (hosts_txt) {
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readsz = fread(hosts_txt, sizeof(char), 4096, hosts_fp);
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*(hosts_txt + readsz) = '\0';
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}
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fclose(hosts_fp);
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}
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free(etc_hosts_fn);
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}
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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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static void readHostsTree() {
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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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int readsz = 0;
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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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int main(int argc, char *argv[]) {
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testGet();
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readHostsFile();
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return 0;
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} |