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#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <zlib.h>
#include "util_rt.h"
#include "util_ct.h"
#include "protocol.h"
typedef struct {
prne_arch_t arch;
const char *path;
struct stat st;
} archive_tuple_t;
uint8_t buf_in[16384], buf_out[16384];
const archive_tuple_t *encounter_arr[NB_PRNE_ARCH];
archive_tuple_t archive_arr[NB_PRNE_ARCH];
size_t archive_arr_cnt = 0;
static void report_zerror (const int z_ret, const char *msg) {
fprintf(stderr, "%s: (%d)%s\n", msg, z_ret, zError(z_ret));
}
int main (const int argc, const char **args) {
size_t i;
archive_tuple_t *archive;
const char *path, *ext;
bool proc_result = true;
prne_arch_t arch;
int bin_fd = -1;
uint8_t head[4];
int z_ret;
z_stream zs;
ssize_t io_ret;
size_t out_len;
if (argc <= 1) {
fprintf(stderr, "Usage: %s <path to binary 1> [path to binary 2 [path to binary ...]]\n", args[0]);
return 1;
}
// refuse to run if stdout is terminal
if (isatty(STDOUT_FILENO)) {
fprintf(stderr, "** Refusing to print on terminal.\n");
return 1;
}
// too many files
if (argc - 1 > NB_PRNE_ARCH) {
fprintf(stderr, "** Too many files given (%d > %d).\n", argc - 1, NB_PRNE_ARCH);
return 1;
}
// init
memzero(encounter_arr, sizeof(archive_tuple_t*) * NB_PRNE_ARCH);
memzero(archive_arr, sizeof(archive_tuple_t) * NB_PRNE_ARCH);
memzero(&zs, sizeof(z_stream));
if ((z_ret = deflateInit(&zs, Z_BEST_COMPRESSION)) != Z_OK) {
report_zerror(z_ret, "deflateInit()");
abort();
}
// Check the file names are valid
for (i = 1; i < (size_t)argc; i += 1) {
struct stat st;
path = args[i];
ext = strrchr(path, '.');
if (ext == NULL) {
fprintf(stderr, "** %s: file extension not found\n", path);
proc_result = false;
continue;
}
ext += 1;
arch = prne_arch_fstr(ext);
if (arch == PRNE_ARCH_NONE) {
fprintf(stderr, "** %s: unknown arch \"%s\"\n", path, ext);
proc_result = false;
continue;
}
if (encounter_arr[arch] != NULL) {
fprintf(stderr, "** Duplicate arch!\n%s\n%s\n", encounter_arr[arch]->path, path);
proc_result = false;
continue;
}
if (stat(path, &st) != 0) {
perror(path);
proc_result = false;
continue;
}
if (st.st_size <= 0) {
fprintf(stderr, "%s: empty file!\n", path);
proc_result = false;
continue;
}
if (st.st_ino > 0x00FFFFFF) {
fprintf(stderr, "%s: file too large!\n", path);
proc_result = false;
continue;
}
archive_arr[archive_arr_cnt].arch = arch;
archive_arr[archive_arr_cnt].path = path;
archive_arr[archive_arr_cnt].st = st;
encounter_arr[arch] = &archive_arr[archive_arr_cnt];
archive_arr_cnt += 1;
}
if (!proc_result) {
goto END;
}
// write head
head[0] = (uint8_t)(archive_arr_cnt & 0x000000FF);
if (write(STDOUT_FILENO, head, 1) != 1) {
perror("write()");
proc_result = false;
goto END;
}
for (i = 0; i < archive_arr_cnt; i += 1) {
archive = archive_arr + i;
head[0] = (uint8_t)archive->arch;
head[1] = (uint8_t)(((uint_fast32_t)archive->st.st_size & 0x00FF0000) >> 16);
head[2] = (uint8_t)(((uint_fast32_t)archive->st.st_size & 0x0000FF00) >> 8);
head[3] = (uint8_t)((uint_fast32_t)archive->st.st_size & 0x000000FF);
if (write(STDOUT_FILENO, head, 4) != 4) {
perror("write()");
proc_result = false;
goto END;
break;
}
}
// write binary
for (i = 0; i < archive_arr_cnt; i += 1) {
archive = archive_arr + i;
bin_fd = open(archive->path, O_RDONLY);
if (bin_fd < 0) {
perror(archive->path);
proc_result = false;
goto END;
}
while (true) {
io_ret = read(bin_fd, buf_in, sizeof(buf_in));
if (io_ret == 0) {
break;
}
if (io_ret < 0) {
perror(archive->path);
proc_result = false;
goto END;
}
zs.avail_in = io_ret;
zs.next_in = buf_in;
do {
zs.avail_out = sizeof(buf_out);
zs.next_out = buf_out;
z_ret = deflate(&zs, Z_NO_FLUSH);
switch (z_ret) {
case Z_BUF_ERROR:
case Z_OK:
break;
default:
report_zerror(z_ret, archive->path);
proc_result = false;
goto END;
}
out_len = sizeof(buf_out) - zs.avail_out;
if (write(STDOUT_FILENO, buf_out, out_len) != (ssize_t)out_len) {
perror("write()");
proc_result = false;
goto END;
}
} while (zs.avail_out == 0);
}
prne_close(bin_fd);
bin_fd = -1;
}
zs.next_in = NULL;
zs.avail_in = 0;
do {
zs.next_out = buf_out;
zs.avail_out = sizeof(buf_out);
z_ret = deflate(&zs, Z_FINISH);
switch (z_ret) {
case Z_BUF_ERROR:
case Z_STREAM_END:
case Z_OK:
break;
default:
report_zerror(z_ret, "finishing deflate()");
proc_result = false;
break;
}
out_len = sizeof(buf_out) - zs.avail_out;
if (write(STDOUT_FILENO, buf_out, out_len) != (ssize_t)out_len) {
perror("write()");
proc_result = false;
break;
}
} while (zs.avail_out == 0);
END:
deflateEnd(&zs);
prne_close(bin_fd);
bin_fd = -1;
return proc_result ? 0 : 1;
}
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