diff options
Diffstat (limited to 'tools/scan-build-py/tests/functional/exec/main.c')
| -rw-r--r-- | tools/scan-build-py/tests/functional/exec/main.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/tools/scan-build-py/tests/functional/exec/main.c b/tools/scan-build-py/tests/functional/exec/main.c new file mode 100644 index 0000000000..830cf3749c --- /dev/null +++ b/tools/scan-build-py/tests/functional/exec/main.c @@ -0,0 +1,307 @@ +/* -*- coding: utf-8 -*- +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +*/ + +#include "config.h" + +#include <sys/wait.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <paths.h> + +#if defined HAVE_POSIX_SPAWN || defined HAVE_POSIX_SPAWNP +#include <spawn.h> +#endif + +// ..:: environment access fixer - begin ::.. +#ifdef HAVE_NSGETENVIRON +#include <crt_externs.h> +#else +extern char **environ; +#endif + +char **get_environ() { +#ifdef HAVE_NSGETENVIRON + return *_NSGetEnviron(); +#else + return environ; +#endif +} +// ..:: environment access fixer - end ::.. + +// ..:: test fixtures - begin ::.. +static char const *cwd = NULL; +static FILE *fd = NULL; +static int need_comma = 0; + +void expected_out_open(const char *expected) { + cwd = getcwd(NULL, 0); + fd = fopen(expected, "w"); + if (!fd) { + perror("fopen"); + exit(EXIT_FAILURE); + } + fprintf(fd, "[\n"); + need_comma = 0; +} + +void expected_out_close() { + fprintf(fd, "]\n"); + fclose(fd); + fd = NULL; + + free((void *)cwd); + cwd = NULL; +} + +void expected_out(const char *file) { + if (need_comma) + fprintf(fd, ",\n"); + else + need_comma = 1; + + fprintf(fd, "{\n"); + fprintf(fd, " \"directory\": \"%s\",\n", cwd); + fprintf(fd, " \"command\": \"cc -c %s\",\n", file); + fprintf(fd, " \"file\": \"%s/%s\"\n", cwd, file); + fprintf(fd, "}\n"); +} + +void create_source(char *file) { + FILE *fd = fopen(file, "w"); + if (!fd) { + perror("fopen"); + exit(EXIT_FAILURE); + } + fprintf(fd, "typedef int score;\n"); + fclose(fd); +} + +typedef void (*exec_fun)(); + +void wait_for(pid_t child) { + int status; + if (-1 == waitpid(child, &status, 0)) { + perror("wait"); + exit(EXIT_FAILURE); + } + if (WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE) { + fprintf(stderr, "children process has non zero exit code\n"); + exit(EXIT_FAILURE); + } +} + +#define FORK(FUNC) \ + { \ + pid_t child = fork(); \ + if (-1 == child) { \ + perror("fork"); \ + exit(EXIT_FAILURE); \ + } else if (0 == child) { \ + FUNC fprintf(stderr, "children process failed to exec\n"); \ + exit(EXIT_FAILURE); \ + } else { \ + wait_for(child); \ + } \ + } +// ..:: test fixtures - end ::.. + +#ifdef HAVE_EXECV +void call_execv() { + char *const file = "execv.c"; + char *const compiler = "/usr/bin/cc"; + char *const argv[] = {"cc", "-c", file, 0}; + + expected_out(file); + create_source(file); + + FORK(execv(compiler, argv);) +} +#endif + +#ifdef HAVE_EXECVE +void call_execve() { + char *const file = "execve.c"; + char *const compiler = "/usr/bin/cc"; + char *const argv[] = {compiler, "-c", file, 0}; + char *const envp[] = {"THIS=THAT", 0}; + + expected_out(file); + create_source(file); + + FORK(execve(compiler, argv, envp);) +} +#endif + +#ifdef HAVE_EXECVP +void call_execvp() { + char *const file = "execvp.c"; + char *const compiler = "cc"; + char *const argv[] = {compiler, "-c", file, 0}; + + expected_out(file); + create_source(file); + + FORK(execvp(compiler, argv);) +} +#endif + +#ifdef HAVE_EXECVP2 +void call_execvP() { + char *const file = "execv_p.c"; + char *const compiler = "cc"; + char *const argv[] = {compiler, "-c", file, 0}; + + expected_out(file); + create_source(file); + + FORK(execvP(compiler, _PATH_DEFPATH, argv);) +} +#endif + +#ifdef HAVE_EXECVPE +void call_execvpe() { + char *const file = "execvpe.c"; + char *const compiler = "cc"; + char *const argv[] = {"/usr/bin/cc", "-c", file, 0}; + char *const envp[] = {"THIS=THAT", 0}; + + expected_out(file); + create_source(file); + + FORK(execvpe(compiler, argv, envp);) +} +#endif + +#ifdef HAVE_EXECT +void call_exect() { + char *const file = "exect.c"; + char *const compiler = "/usr/bin/cc"; + char *const argv[] = {compiler, "-c", file, 0}; + char *const envp[] = {"THIS=THAT", 0}; + + expected_out(file); + create_source(file); + + FORK(exect(compiler, argv, envp);) +} +#endif + +#ifdef HAVE_EXECL +void call_execl() { + char *const file = "execl.c"; + char *const compiler = "/usr/bin/cc"; + + expected_out(file); + create_source(file); + + FORK(execl(compiler, "cc", "-c", file, (char *)0);) +} +#endif + +#ifdef HAVE_EXECLP +void call_execlp() { + char *const file = "execlp.c"; + char *const compiler = "cc"; + + expected_out(file); + create_source(file); + + FORK(execlp(compiler, compiler, "-c", file, (char *)0);) +} +#endif + +#ifdef HAVE_EXECLE +void call_execle() { + char *const file = "execle.c"; + char *const compiler = "/usr/bin/cc"; + char *const envp[] = {"THIS=THAT", 0}; + + expected_out(file); + create_source(file); + + FORK(execle(compiler, compiler, "-c", file, (char *)0, envp);) +} +#endif + +#ifdef HAVE_POSIX_SPAWN +void call_posix_spawn() { + char *const file = "posix_spawn.c"; + char *const compiler = "cc"; + char *const argv[] = {compiler, "-c", file, 0}; + + expected_out(file); + create_source(file); + + pid_t child; + if (0 != posix_spawn(&child, "/usr/bin/cc", 0, 0, argv, get_environ())) { + perror("posix_spawn"); + exit(EXIT_FAILURE); + } + wait_for(child); +} +#endif + +#ifdef HAVE_POSIX_SPAWNP +void call_posix_spawnp() { + char *const file = "posix_spawnp.c"; + char *const compiler = "cc"; + char *const argv[] = {compiler, "-c", file, 0}; + + expected_out(file); + create_source(file); + + pid_t child; + if (0 != posix_spawnp(&child, "cc", 0, 0, argv, get_environ())) { + perror("posix_spawnp"); + exit(EXIT_FAILURE); + } + wait_for(child); +} +#endif + +int main(int argc, char *const argv[]) { + if (argc != 2) + exit(EXIT_FAILURE); + + expected_out_open(argv[1]); +#ifdef HAVE_EXECV + call_execv(); +#endif +#ifdef HAVE_EXECVE + call_execve(); +#endif +#ifdef HAVE_EXECVP + call_execvp(); +#endif +#ifdef HAVE_EXECVP2 + call_execvP(); +#endif +#ifdef HAVE_EXECVPE + call_execvpe(); +#endif +#ifdef HAVE_EXECT + call_exect(); +#endif +#ifdef HAVE_EXECL + call_execl(); +#endif +#ifdef HAVE_EXECLP + call_execlp(); +#endif +#ifdef HAVE_EXECLE + call_execle(); +#endif +#ifdef HAVE_POSIX_SPAWN + call_posix_spawn(); +#endif +#ifdef HAVE_POSIX_SPAWNP + call_posix_spawnp(); +#endif + expected_out_close(); + return 0; +} |