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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /nsprpub/pr/src/md/beos/bproc.c
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'nsprpub/pr/src/md/beos/bproc.c')
-rw-r--r--nsprpub/pr/src/md/beos/bproc.c212
1 files changed, 212 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/beos/bproc.c b/nsprpub/pr/src/md/beos/bproc.c
new file mode 100644
index 000000000..30ac56990
--- /dev/null
+++ b/nsprpub/pr/src/md/beos/bproc.c
@@ -0,0 +1,212 @@
+/* -*- Mode: C++; tab-width: 8; c-basic-offset: 8 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "primpl.h"
+#include <stdio.h>
+#include <signal.h>
+
+#define _PR_SIGNALED_EXITSTATUS 256
+
+PRProcess*
+_MD_create_process (const char *path, char *const *argv,
+ char *const *envp, const PRProcessAttr *attr)
+{
+ PRProcess *process;
+ int nEnv, idx;
+ char *const *childEnvp;
+ char **newEnvp = NULL;
+ int flags;
+ PRBool found = PR_FALSE;
+
+ process = PR_NEW(PRProcess);
+ if (!process) {
+ PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
+ return NULL;
+ }
+
+ childEnvp = envp;
+ if (attr && attr->fdInheritBuffer) {
+ if (NULL == childEnvp) {
+ childEnvp = environ;
+ }
+ for (nEnv = 0; childEnvp[nEnv]; nEnv++) {
+ }
+ newEnvp = (char **) PR_MALLOC((nEnv + 2) * sizeof(char *));
+ if (NULL == newEnvp) {
+ PR_DELETE(process);
+ PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
+ return NULL;
+ }
+ for (idx = 0; idx < nEnv; idx++) {
+ newEnvp[idx] = childEnvp[idx];
+ if (!found && !strncmp(newEnvp[idx], "NSPR_INHERIT_FDS=", 17)) {
+ newEnvp[idx] = attr->fdInheritBuffer;
+ found = PR_TRUE;
+ }
+ }
+ if (!found) {
+ newEnvp[idx++] = attr->fdInheritBuffer;
+ }
+ newEnvp[idx] = NULL;
+ childEnvp = newEnvp;
+ }
+
+ process->md.pid = fork();
+
+ if ((pid_t) -1 == process->md.pid) {
+ PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, errno);
+ PR_DELETE(process);
+ if (newEnvp) {
+ PR_DELETE(newEnvp);
+ }
+ return NULL;
+ } else if (0 == process->md.pid) { /* the child process */
+ /*
+ * If the child process needs to exit, it must call _exit().
+ * Do not call exit(), because exit() will flush and close
+ * the standard I/O file descriptors, and hence corrupt
+ * the parent process's standard I/O data structures.
+ */
+
+ if (attr) {
+ /* the osfd's to redirect stdin, stdout, and stderr to */
+ int in_osfd = -1, out_osfd = -1, err_osfd = -1;
+
+ if (attr->stdinFd
+ && attr->stdinFd->secret->md.osfd != 0) {
+ in_osfd = attr->stdinFd->secret->md.osfd;
+ if (dup2(in_osfd, 0) != 0) {
+ _exit(1); /* failed */
+ }
+ flags = fcntl(0, F_GETFL, 0);
+ if (flags & O_NONBLOCK) {
+ fcntl(0, F_SETFL, flags & ~O_NONBLOCK);
+ }
+ }
+ if (attr->stdoutFd
+ && attr->stdoutFd->secret->md.osfd != 1) {
+ out_osfd = attr->stdoutFd->secret->md.osfd;
+ if (dup2(out_osfd, 1) != 1) {
+ _exit(1); /* failed */
+ }
+ flags = fcntl(1, F_GETFL, 0);
+ if (flags & O_NONBLOCK) {
+ fcntl(1, F_SETFL, flags & ~O_NONBLOCK);
+ }
+ }
+ if (attr->stderrFd
+ && attr->stderrFd->secret->md.osfd != 2) {
+ err_osfd = attr->stderrFd->secret->md.osfd;
+ if (dup2(err_osfd, 2) != 2) {
+ _exit(1); /* failed */
+ }
+ flags = fcntl(2, F_GETFL, 0);
+ if (flags & O_NONBLOCK) {
+ fcntl(2, F_SETFL, flags & ~O_NONBLOCK);
+ }
+ }
+ if (in_osfd != -1) {
+ close(in_osfd);
+ }
+ if (out_osfd != -1 && out_osfd != in_osfd) {
+ close(out_osfd);
+ }
+ if (err_osfd != -1 && err_osfd != in_osfd
+ && err_osfd != out_osfd) {
+ close(err_osfd);
+ }
+ if (attr->currentDirectory) {
+ if (chdir(attr->currentDirectory) < 0) {
+ _exit(1); /* failed */
+ }
+ }
+ }
+
+ if (childEnvp) {
+ (void)execve(path, argv, childEnvp);
+ } else {
+ /* Inherit the environment of the parent. */
+ (void)execv(path, argv);
+ }
+ /* Whoops! It returned. That's a bad sign. */
+ _exit(1);
+ }
+
+ if (newEnvp) {
+ PR_DELETE(newEnvp);
+ }
+
+ return process;
+}
+
+PRStatus
+_MD_detach_process (PRProcess *process)
+{
+ /* If we kept a process table like unix does,
+ * we'd remove the entry here.
+ * Since we dont', just delete the process variable
+ */
+ PR_DELETE(process);
+ return PR_SUCCESS;
+}
+
+PRStatus
+_MD_wait_process (PRProcess *process, PRInt32 *exitCode)
+{
+ PRStatus retVal = PR_SUCCESS;
+ int ret, status;
+
+ /* Ignore interruptions */
+ do {
+ ret = waitpid(process->md.pid, &status, 0);
+ } while (ret == -1 && errno == EINTR);
+
+ /*
+ * waitpid() cannot return 0 because we did not invoke it
+ * with the WNOHANG option.
+ */
+ PR_ASSERT(0 != ret);
+
+ if (ret < 0) {
+ PR_SetError(PR_UNKNOWN_ERROR, _MD_ERRNO());
+ return PR_FAILURE;
+ }
+
+ /* If child process exited normally, return child exit code */
+ if (WIFEXITED(status)) {
+ *exitCode = WEXITSTATUS(status);
+ } else {
+ PR_ASSERT(WIFSIGNALED(status));
+ *exitCode = _PR_SIGNALED_EXITSTATUS;
+ }
+
+ PR_DELETE(process);
+ return PR_SUCCESS;
+}
+
+PRStatus
+_MD_kill_process (PRProcess *process)
+{
+ PRErrorCode prerror;
+ PRInt32 oserror;
+
+ if (kill(process->md.pid, SIGKILL) == 0) {
+ return PR_SUCCESS;
+ }
+ oserror = errno;
+ switch (oserror) {
+ case EPERM:
+ prerror = PR_NO_ACCESS_RIGHTS_ERROR;
+ break;
+ case ESRCH:
+ prerror = PR_INVALID_ARGUMENT_ERROR;
+ break;
+ default:
+ prerror = PR_UNKNOWN_ERROR;
+ break;
+ }
+ PR_SetError(prerror, oserror);
+ return PR_FAILURE;
+}