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https://github.com/bytecodealliance/wasm-micro-runtime.git
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d3a2cdd8f7
- Direct Execution: execve() directly executes a program, bypassing the shell. This avoids vulnerabilities like shell injection, which can occur with system() if user input is not properly sanitized. - Controlled Environment: With execve(), you can explicitly specify the environment variables for the new process, providing better control over the execution context. - No Shell Overhead: execve() does not invoke a shell, reducing the risk of unintended behavior caused by shell features or configurations. - Predictable Behavior: execve() only executes the specified program, whereas system() relies on the shell, which may interpret commands differently based on the shell's configuration or environment.
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#ifndef _BH_COMMON_H
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#define _BH_COMMON_H
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#include "bh_platform.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define bh_memcpy_s(dest, dlen, src, slen) \
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do { \
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int _ret = b_memcpy_s(dest, dlen, src, slen); \
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(void)_ret; \
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bh_assert(_ret == 0); \
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} while (0)
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#define bh_memcpy_wa(dest, dlen, src, slen) \
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do { \
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int _ret = b_memcpy_wa(dest, dlen, src, slen); \
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(void)_ret; \
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bh_assert(_ret == 0); \
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} while (0)
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#define bh_memmove_s(dest, dlen, src, slen) \
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do { \
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int _ret = b_memmove_s(dest, dlen, src, slen); \
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(void)_ret; \
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bh_assert(_ret == 0); \
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} while (0)
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#define bh_strcat_s(dest, dlen, src) \
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do { \
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int _ret = b_strcat_s(dest, dlen, src); \
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(void)_ret; \
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bh_assert(_ret == 0); \
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} while (0)
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#define bh_strcpy_s(dest, dlen, src) \
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do { \
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int _ret = b_strcpy_s(dest, dlen, src); \
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(void)_ret; \
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bh_assert(_ret == 0); \
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} while (0)
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int
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b_memcpy_s(void *s1, unsigned int s1max, const void *s2, unsigned int n);
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int
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b_memcpy_wa(void *s1, unsigned int s1max, const void *s2, unsigned int n);
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int
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b_memmove_s(void *s1, unsigned int s1max, const void *s2, unsigned int n);
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int
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b_strcat_s(char *s1, unsigned int s1max, const char *s2);
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int
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b_strcpy_s(char *s1, unsigned int s1max, const char *s2);
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/* strdup with string allocated by BH_MALLOC */
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char *
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bh_strdup(const char *s);
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/* strdup with string allocated by WA_MALLOC */
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char *
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wa_strdup(const char *s);
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#if WASM_ENABLE_WAMR_COMPILER != 0 || WASM_ENABLE_JIT != 0
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/*
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* Executes a program referred to by cmd in bash/cmd.exe
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* Always be sure that argv[argc-1] == NULL
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*
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* @param pathname The program to execute. need to be absolute path.
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* @param argv The command line arguments.
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* @param argc The number of command line arguments.
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*
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* like to execute "ls -l /tmp":
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* bh_execve("/bin/ls", (char *const []){ "-l", "/tmp", NULL }, 3);
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*/
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int
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bh_execve(const char *pathname, char *const argv[], int argc);
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/* Tests whether can create a temporary file with the given name */
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bool
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bh_mkstemp(char *filename, size_t name_len);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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