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#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include "frida-gumjs.h"
#include "output.h"
#include "util.h"
char *output_stdout = NULL;
char *output_stderr = NULL;
static void output_redirect(int fd, char *filename) {
char *path = NULL;
if (filename == NULL) { return; }
path = g_canonicalize_filename(filename, g_get_current_dir());
FVERBOSE("Redirect %d -> '%s'", fd, path);
int output_fd = open(path, O_RDWR | O_CREAT | O_TRUNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
g_free(path);
if (output_fd < 0) { FFATAL("Failed to open fd(%d) error %d", fd, errno); }
if (dup2(output_fd, fd) < 0) {
FFATAL("Failed to set fd(%d) error %d", fd, errno);
}
close(output_fd);
}
void output_config(void) {
output_stdout = getenv("AFL_FRIDA_OUTPUT_STDOUT");
output_stderr = getenv("AFL_FRIDA_OUTPUT_STDERR");
}
void output_init(void) {
FOKF(cBLU "Output" cRST " - " cGRN "stdout:" cYEL " [%s]",
output_stdout == NULL ? " " : output_stdout);
FOKF(cBLU "Output" cRST " - " cGRN "stderr:" cYEL " [%s]",
output_stderr == NULL ? " " : output_stderr);
output_redirect(STDOUT_FILENO, output_stdout);
output_redirect(STDERR_FILENO, output_stderr);
}
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