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#include <stdio.h>
#include <errno.h>
#include <unistd.h>
int main() {
char* files[] = {"/link", "/file", "/folder"};
char buffer[256] = {0};
for (int i = 0; i < sizeof files / sizeof files[0]; i++) {
printf("readlink(%s)\n", files[i]);
printf("ret: %d\n", readlink(files[i], buffer, 256));
printf("errno: %d\n", errno);
printf("result: %s\n\n", buffer);
errno = 0;
}
printf("symlink/overwrite\n");
printf("ret: %d\n", symlink("new-nonexistent-path", "/link"));
printf("errno: %d\n\n", errno);
errno = 0;
printf("symlink/normal\n");
printf("ret: %d\n", symlink("new-nonexistent-path", "/folder/link"));
printf("errno: %d\n", errno);
errno = 0;
printf("readlink(created link)\n");
printf("ret: %d\n", readlink("/folder/link", buffer, 256));
printf("errno: %d\n", errno);
printf("result: %s\n\n", buffer);
errno = 0;
printf("readlink(short buffer)\n");
printf("ret: %d\n", readlink("/link", buffer, 4));
printf("errno: %d\n", errno);
printf("result: %s\n", buffer);
errno = 0;
return 0;
}
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