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termux.c: Re-indent whole file with vim

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This commit is contained in:
Fredrik Fornwall
2016-04-23 12:21:36 +02:00
parent 746dc750df
commit 46da1fc833
1 changed files with 152 additions and 152 deletions
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304
app/src/main/jni/termux.c
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@@ -17,203 +17,203 @@
static int throw_runtime_exception(JNIEnv* env, char const* message)
{
jclass exClass = (*env)->FindClass(env, "java/lang/RuntimeException");
(*env)->ThrowNew(env, exClass, message);
return -1;
jclass exClass = (*env)->FindClass(env, "java/lang/RuntimeException");
(*env)->ThrowNew(env, exClass, message);
return -1;
}
static int create_subprocess(JNIEnv* env,
char const* cmd,
char const* cwd,
char* const argv[],
char** envp,
int* pProcessId,
jint rows,
jint columns)
char const* cmd,
char const* cwd,
char* const argv[],
char** envp,
int* pProcessId,
jint rows,
jint columns)
{
int ptm = open("/dev/ptmx", O_RDWR | O_CLOEXEC);
if (ptm < 0) return throw_runtime_exception(env, "Cannot open /dev/ptmx");
int ptm = open("/dev/ptmx", O_RDWR | O_CLOEXEC);
if (ptm < 0) return throw_runtime_exception(env, "Cannot open /dev/ptmx");
#ifdef LACKS_PTSNAME_R
char* devname;
char* devname;
#else
char devname[64];
char devname[64];
#endif
if (grantpt(ptm) || unlockpt(ptm) ||
if (grantpt(ptm) || unlockpt(ptm) ||
#ifdef LACKS_PTSNAME_R
(devname = ptsname(ptm)) == NULL
(devname = ptsname(ptm)) == NULL
#else
ptsname_r(ptm, devname, sizeof(devname))
ptsname_r(ptm, devname, sizeof(devname))
#endif
) {
return throw_runtime_exception(env, "Cannot grantpt()/unlockpt()/ptsname_r() on /dev/ptmx");
) {
return throw_runtime_exception(env, "Cannot grantpt()/unlockpt()/ptsname_r() on /dev/ptmx");
}
// Enable UTF-8 mode and disable flow control to prevent Ctrl+S from locking up the display.
struct termios tios;
tcgetattr(ptm, &tios);
tios.c_iflag |= IUTF8;
tios.c_iflag &= ~(IXON | IXOFF);
tcsetattr(ptm, TCSANOW, &tios);
/** Set initial winsize. */
struct winsize sz = { .ws_row = rows, .ws_col = columns };
ioctl(ptm, TIOCSWINSZ, &sz);
pid_t pid = fork();
if (pid < 0) {
return throw_runtime_exception(env, "Fork failed");
} else if (pid > 0) {
*pProcessId = (int) pid;
return ptm;
} else {
// Clear signals which the Android java process may have blocked:
sigset_t signals_to_unblock;
sigfillset(&signals_to_unblock);
sigprocmask(SIG_UNBLOCK, &signals_to_unblock, 0);
close(ptm);
setsid();
int pts = open(devname, O_RDWR);
if (pts < 0) exit(-1);
dup2(pts, 0);
dup2(pts, 1);
dup2(pts, 2);
DIR* self_dir = opendir("/proc/self/fd");
if (self_dir != NULL) {
int self_dir_fd = dirfd(self_dir);
struct dirent* entry;
while ((entry = readdir(self_dir)) != NULL) {
int fd = atoi(entry->d_name);
if(fd > 2 && fd != self_dir_fd) close(fd);
}
closedir(self_dir);
}
// Enable UTF-8 mode and disable flow control to prevent Ctrl+S from locking up the display.
struct termios tios;
tcgetattr(ptm, &tios);
tios.c_iflag |= IUTF8;
tios.c_iflag &= ~(IXON | IXOFF);
tcsetattr(ptm, TCSANOW, &tios);
clearenv();
if (envp) for (; *envp; ++envp) putenv(*envp);
/** Set initial winsize. */
struct winsize sz = { .ws_row = rows, .ws_col = columns };
ioctl(ptm, TIOCSWINSZ, &sz);
pid_t pid = fork();
if (pid < 0) {
return throw_runtime_exception(env, "Fork failed");
} else if (pid > 0) {
*pProcessId = (int) pid;
return ptm;
} else {
// Clear signals which the Android java process may have blocked:
sigset_t signals_to_unblock;
sigfillset(&signals_to_unblock);
sigprocmask(SIG_UNBLOCK, &signals_to_unblock, 0);
close(ptm);
setsid();
int pts = open(devname, O_RDWR);
if (pts < 0) exit(-1);
dup2(pts, 0);
dup2(pts, 1);
dup2(pts, 2);
DIR* self_dir = opendir("/proc/self/fd");
if (self_dir != NULL) {
int self_dir_fd = dirfd(self_dir);
struct dirent* entry;
while ((entry = readdir(self_dir)) != NULL) {
int fd = atoi(entry->d_name);
if(fd > 2 && fd != self_dir_fd) close(fd);
}
closedir(self_dir);
}
clearenv();
if (envp) for (; *envp; ++envp) putenv(*envp);
if (chdir(cwd) != 0) {
char* error_message;
// No need to free asprintf()-allocated memory since doing execvp() or exit() below.
if (asprintf(&error_message, "chdir(\"%s\")", cwd) == -1) error_message = "chdir()";
perror(error_message);
fflush(stderr);
}
execvp(cmd, argv);
// Show terminal output about failing exec() call:
char* error_message;
if (asprintf(&error_message, "exec(\"%s\")", cmd) == -1) error_message = "exec()";
perror(error_message);
_exit(1);
if (chdir(cwd) != 0) {
char* error_message;
// No need to free asprintf()-allocated memory since doing execvp() or exit() below.
if (asprintf(&error_message, "chdir(\"%s\")", cwd) == -1) error_message = "chdir()";
perror(error_message);
fflush(stderr);
}
execvp(cmd, argv);
// Show terminal output about failing exec() call:
char* error_message;
if (asprintf(&error_message, "exec(\"%s\")", cmd) == -1) error_message = "exec()";
perror(error_message);
_exit(1);
}
}
JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(
JNIEnv* env,
jclass TERMUX_UNUSED(clazz),
jstring cmd,
jstring cwd,
jobjectArray args,
jobjectArray envVars,
jintArray processIdArray,
jint rows,
jint columns)
JNIEnv* env,
jclass TERMUX_UNUSED(clazz),
jstring cmd,
jstring cwd,
jobjectArray args,
jobjectArray envVars,
jintArray processIdArray,
jint rows,
jint columns)
{
jsize size = args ? (*env)->GetArrayLength(env, args) : 0;
char** argv = NULL;
if (size > 0) {
argv = (char**) malloc((size + 1) * sizeof(char*));
if (!argv) return throw_runtime_exception(env, "Couldn't allocate argv array");
for (int i = 0; i < size; ++i) {
jstring arg_java_string = (jstring) (*env)->GetObjectArrayElement(env, args, i);
char const* arg_utf8 = (*env)->GetStringUTFChars(env, arg_java_string, NULL);
if (!arg_utf8) return throw_runtime_exception(env, "GetStringUTFChars() failed for argv");
argv[i] = strdup(arg_utf8);
(*env)->ReleaseStringUTFChars(env, arg_java_string, arg_utf8);
}
argv[size] = NULL;
jsize size = args ? (*env)->GetArrayLength(env, args) : 0;
char** argv = NULL;
if (size > 0) {
argv = (char**) malloc((size + 1) * sizeof(char*));
if (!argv) return throw_runtime_exception(env, "Couldn't allocate argv array");
for (int i = 0; i < size; ++i) {
jstring arg_java_string = (jstring) (*env)->GetObjectArrayElement(env, args, i);
char const* arg_utf8 = (*env)->GetStringUTFChars(env, arg_java_string, NULL);
if (!arg_utf8) return throw_runtime_exception(env, "GetStringUTFChars() failed for argv");
argv[i] = strdup(arg_utf8);
(*env)->ReleaseStringUTFChars(env, arg_java_string, arg_utf8);
}
argv[size] = NULL;
}
size = envVars ? (*env)->GetArrayLength(env, envVars) : 0;
char** envp = NULL;
if (size > 0) {
envp = (char**) malloc((size + 1) * sizeof(char *));
if (!envp) return throw_runtime_exception(env, "malloc() for envp array failed");
for (int i = 0; i < size; ++i) {
jstring env_java_string = (jstring) (*env)->GetObjectArrayElement(env, envVars, i);
char const* env_utf8 = (*env)->GetStringUTFChars(env, env_java_string, 0);
if (!env_utf8) return throw_runtime_exception(env, "GetStringUTFChars() failed for env");
envp[i] = strdup(env_utf8);
(*env)->ReleaseStringUTFChars(env, env_java_string, env_utf8);
}
envp[size] = NULL;
size = envVars ? (*env)->GetArrayLength(env, envVars) : 0;
char** envp = NULL;
if (size > 0) {
envp = (char**) malloc((size + 1) * sizeof(char *));
if (!envp) return throw_runtime_exception(env, "malloc() for envp array failed");
for (int i = 0; i < size; ++i) {
jstring env_java_string = (jstring) (*env)->GetObjectArrayElement(env, envVars, i);
char const* env_utf8 = (*env)->GetStringUTFChars(env, env_java_string, 0);
if (!env_utf8) return throw_runtime_exception(env, "GetStringUTFChars() failed for env");
envp[i] = strdup(env_utf8);
(*env)->ReleaseStringUTFChars(env, env_java_string, env_utf8);
}
envp[size] = NULL;
}
int procId = 0;
char const* cmd_cwd = (*env)->GetStringUTFChars(env, cwd, NULL);
char const* cmd_utf8 = (*env)->GetStringUTFChars(env, cmd, NULL);
int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId, rows, columns);
(*env)->ReleaseStringUTFChars(env, cmd, cmd_utf8);
(*env)->ReleaseStringUTFChars(env, cmd, cmd_cwd);
int procId = 0;
char const* cmd_cwd = (*env)->GetStringUTFChars(env, cwd, NULL);
char const* cmd_utf8 = (*env)->GetStringUTFChars(env, cmd, NULL);
int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId, rows, columns);
(*env)->ReleaseStringUTFChars(env, cmd, cmd_utf8);
(*env)->ReleaseStringUTFChars(env, cmd, cmd_cwd);
if (argv) {
for (char** tmp = argv; *tmp; ++tmp) free(*tmp);
free(argv);
}
if (envp) {
for (char** tmp = envp; *tmp; ++tmp) free(*tmp);
free(envp);
}
if (argv) {
for (char** tmp = argv; *tmp; ++tmp) free(*tmp);
free(argv);
}
if (envp) {
for (char** tmp = envp; *tmp; ++tmp) free(*tmp);
free(envp);
}
int* pProcId = (int*) (*env)->GetPrimitiveArrayCritical(env, processIdArray, NULL);
if (!pProcId) return throw_runtime_exception(env, "JNI call GetPrimitiveArrayCritical(processIdArray, &isCopy) failed");
int* pProcId = (int*) (*env)->GetPrimitiveArrayCritical(env, processIdArray, NULL);
if (!pProcId) return throw_runtime_exception(env, "JNI call GetPrimitiveArrayCritical(processIdArray, &isCopy) failed");
*pProcId = procId;
(*env)->ReleasePrimitiveArrayCritical(env, processIdArray, pProcId, 0);
*pProcId = procId;
(*env)->ReleasePrimitiveArrayCritical(env, processIdArray, pProcId, 0);
return ptm;
return ptm;
}
JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyWindowSize(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd, jint rows, jint cols)
{
struct winsize sz = { .ws_row = rows, .ws_col = cols };
ioctl(fd, TIOCSWINSZ, &sz);
struct winsize sz = { .ws_row = rows, .ws_col = cols };
ioctl(fd, TIOCSWINSZ, &sz);
}
JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyUTF8Mode(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd)
{
struct termios tios;
tcgetattr(fd, &tios);
if ((tios.c_iflag & IUTF8) == 0) {
tios.c_iflag |= IUTF8;
tcsetattr(fd, TCSANOW, &tios);
}
struct termios tios;
tcgetattr(fd, &tios);
if ((tios.c_iflag & IUTF8) == 0) {
tios.c_iflag |= IUTF8;
tcsetattr(fd, TCSANOW, &tios);
}
}
JNIEXPORT int JNICALL Java_com_termux_terminal_JNI_waitFor(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint pid)
{
int status;
waitpid(pid, &status, 0);
if (WIFEXITED(status)) {
return WEXITSTATUS(status);
} else if (WIFSIGNALED(status)) {
return -WTERMSIG(status);
} else {
// Should never happen - waitpid(2) says "One of the first three macros will evaluate to a non-zero (true) value".
return 0;
}
int status;
waitpid(pid, &status, 0);
if (WIFEXITED(status)) {
return WEXITSTATUS(status);
} else if (WIFSIGNALED(status)) {
return -WTERMSIG(status);
} else {
// Should never happen - waitpid(2) says "One of the first three macros will evaluate to a non-zero (true) value".
return 0;
}
}
JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_hangupProcessGroup(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint procId)
{
killpg(procId, SIGHUP);
killpg(procId, SIGHUP);
}
JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_close(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fileDescriptor)
{
close(fileDescriptor);
close(fileDescriptor);
}