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portability fix: getcwd(NULL, 0) is a non-POSIX glibc extension. Refactor

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detect_file_args() in a separate file in order to avoid multiple copies.
This commit is contained in:
hexcoder-
2019-07-13 08:09:19 +02:00
committed by Hexcoder
parent d9c70c7b8c
commit f45332e1ab
7 changed files with 110 additions and 188 deletions
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47
afl-showmap.c
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@ -29,6 +29,7 @@
#include "alloc-inl.h"
#include "hash.h"
#include "sharedmem.h"
#include "afl-common.h"
#include <stdio.h>
#include <unistd.h>
@ -380,50 +381,6 @@ static void setup_signal_handlers(void) {
}
/* Detect @@ in args. */
static void detect_file_args(char** argv) {
u32 i = 0;
u8* cwd = getcwd(NULL, 0);
if (!cwd) PFATAL("getcwd() failed");
while (argv[i]) {
u8* aa_loc = strstr(argv[i], "@@");
if (aa_loc) {
u8 *aa_subst, *n_arg;
if (!at_file) FATAL("@@ syntax is not supported by this tool.");
/* Be sure that we're always using fully-qualified paths. */
if (at_file[0] == '/') aa_subst = at_file;
else aa_subst = alloc_printf("%s/%s", cwd, at_file);
/* Construct a replacement argv value. */
*aa_loc = 0;
n_arg = alloc_printf("%s%s%s", argv[i], aa_subst, aa_loc + 2);
argv[i] = n_arg;
*aa_loc = '@';
if (at_file[0] != '/') ck_free(aa_subst);
}
i++;
}
free(cwd); /* not tracked */
}
/* Show banner. */
static void show_banner(void) {
@ -720,7 +677,7 @@ int main(int argc, char** argv) {
ACTF("Executing '%s'...\n", target_path);
}
detect_file_args(argv + optind);
detect_file_args(argv + optind, at_file);
if (qemu_mode)
use_argv = get_qemu_argv(argv[0], argv + optind, argc - optind);