1 files changed, 0 insertions, 569 deletions

diff --git a/crypto/logwrapper/logwrap.c b/crypto/logwrapper/logwrap.c
deleted file mode 100644
index 4ca1db4c8..000000000
--- a/crypto/logwrapper/logwrap.c
+++ /dev/null
@@ -1,569 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <poll.h>
-#include <sys/wait.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <libgen.h>
-#include <stdbool.h>
-#include <pthread.h>
-
-#include <logwrap/logwrap.h>
-#include "private/android_filesystem_config.h"
-#include "cutils/log.h"
-#include <cutils/klog.h>
-
-#define ARRAY_SIZE(x)   (sizeof(x) / sizeof(*(x)))
-#define MIN(a,b) (((a)<(b))?(a):(b))
-
-static pthread_mutex_t fd_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-#define ERROR(fmt, args...)                                                   \
-do {                                                                          \
-    fprintf(stderr, fmt, ## args);                                            \
-    ALOG(LOG_ERROR, "logwrapper", fmt, ## args);                              \
-} while(0)
-
-#define FATAL_CHILD(fmt, args...)                                             \
-do {                                                                          \
-    ERROR(fmt, ## args);                                                      \
-    _exit(-1);                                                                \
-} while(0)
-
-#define MAX_KLOG_TAG 16
-
-/* This is a simple buffer that holds up to the first beginning_buf->buf_size
- * bytes of output from a command.
- */
-#define BEGINNING_BUF_SIZE 0x1000
-struct beginning_buf {
-    char *buf;
-    size_t alloc_len;
-    /* buf_size is the usable space, which is one less than the allocated size */
-    size_t buf_size;
-    size_t used_len;
-};
-
-/* This is a circular buf that holds up to the last ending_buf->buf_size bytes
- * of output from a command after the first beginning_buf->buf_size bytes
- * (which are held in beginning_buf above).
- */
-#define ENDING_BUF_SIZE 0x1000
-struct ending_buf {
-    char *buf;
-    ssize_t alloc_len;
-    /* buf_size is the usable space, which is one less than the allocated size */
-    ssize_t buf_size;
-    ssize_t used_len;
-    /* read and write offsets into the circular buffer */
-    int read;
-    int write;
-};
-
- /* A structure to hold all the abbreviated buf data */
-struct abbr_buf {
-    struct beginning_buf b_buf;
-    struct ending_buf e_buf;
-    int beginning_buf_full;
-};
-
-/* Collect all the various bits of info needed for logging in one place. */
-struct log_info {
-    int log_target;
-    char klog_fmt[MAX_KLOG_TAG * 2];
-    char *btag;
-    bool abbreviated;
-    FILE *fp;
-    struct abbr_buf a_buf;
-};
-
-/* Forware declaration */
-static void add_line_to_abbr_buf(struct abbr_buf *a_buf, char *linebuf, int linelen);
-
-/* Return 0 on success, and 1 when full */
-static int add_line_to_linear_buf(struct beginning_buf *b_buf,
-                                   char *line, ssize_t line_len)
-{
-    size_t new_len;
-    char *new_buf;
-    int full = 0;
-
-    if ((line_len + b_buf->used_len) > b_buf->buf_size) {
-        full = 1;
-    } else {
-        /* Add to the end of the buf */
-        memcpy(b_buf->buf + b_buf->used_len, line, line_len);
-        b_buf->used_len += line_len;
-    }
-
-    return full;
-}
-
-static void add_line_to_circular_buf(struct ending_buf *e_buf,
-                                     char *line, ssize_t line_len)
-{
-    ssize_t free_len;
-    ssize_t needed_space;
-    char *new_buf;
-    int cnt;
-
-    if (e_buf->buf == NULL) {
-        return;
-    }
-
-   if (line_len > e_buf->buf_size) {
-       return;
-   }
-
-    free_len = e_buf->buf_size - e_buf->used_len;
-
-    if (line_len > free_len) {
-        /* remove oldest entries at read, and move read to make
-         * room for the new string */
-        needed_space = line_len - free_len;
-        e_buf->read = (e_buf->read + needed_space) % e_buf->buf_size;
-        e_buf->used_len -= needed_space;
-    }
-
-    /* Copy the line into the circular buffer, dealing with possible
-     * wraparound.
-     */
-    cnt = MIN(line_len, e_buf->buf_size - e_buf->write);
-    memcpy(e_buf->buf + e_buf->write, line, cnt);
-    if (cnt < line_len) {
-        memcpy(e_buf->buf, line + cnt, line_len - cnt);
-    }
-    e_buf->used_len += line_len;
-    e_buf->write = (e_buf->write + line_len) % e_buf->buf_size;
-}
-
-/* Log directly to the specified log */
-static void do_log_line(struct log_info *log_info, char *line) {
-    if (log_info->log_target & LOG_KLOG) {
-        klog_write(6, log_info->klog_fmt, line);
-    }
-    if (log_info->log_target & LOG_ALOG) {
-        ALOG(LOG_INFO, log_info->btag, "%s", line);
-    }
-    if (log_info->log_target & LOG_FILE) {
-        fprintf(log_info->fp, "%s\n", line);
-    }
-}
-
-/* Log to either the abbreviated buf, or directly to the specified log
- * via do_log_line() above.
- */
-static void log_line(struct log_info *log_info, char *line, int len) {
-    if (log_info->abbreviated) {
-        add_line_to_abbr_buf(&log_info->a_buf, line, len);
-    } else {
-        do_log_line(log_info, line);
-    }
-}
-
-/*
- * The kernel will take a maximum of 1024 bytes in any single write to
- * the kernel logging device file, so find and print each line one at
- * a time.  The allocated size for buf should be at least 1 byte larger
- * than buf_size (the usable size of the buffer) to make sure there is
- * room to temporarily stuff a null byte to terminate a line for logging.
- */
-static void print_buf_lines(struct log_info *log_info, char *buf, int buf_size)
-{
-    char *line_start;
-    char c;
-    int line_len;
-    int i;
-
-    line_start = buf;
-    for (i = 0; i < buf_size; i++) {
-        if (*(buf + i) == '\n') {
-            /* Found a line ending, print the line and compute new line_start */
-            /* Save the next char and replace with \0 */
-            c = *(buf + i + 1);
-            *(buf + i + 1) = '\0';
-            do_log_line(log_info, line_start);
-            /* Restore the saved char */
-            *(buf + i + 1) = c;
-            line_start = buf + i + 1;
-        } else if (*(buf + i) == '\0') {
-            /* The end of the buffer, print the last bit */
-            do_log_line(log_info, line_start);
-            break;
-        }
-    }
-    /* If the buffer was completely full, and didn't end with a newline, just
-     * ignore the partial last line.
-     */
-}
-
-static void init_abbr_buf(struct abbr_buf *a_buf) {
-    char *new_buf;
-
-    memset(a_buf, 0, sizeof(struct abbr_buf));
-    new_buf = malloc(BEGINNING_BUF_SIZE);
-    if (new_buf) {
-        a_buf->b_buf.buf = new_buf;
-        a_buf->b_buf.alloc_len = BEGINNING_BUF_SIZE;
-        a_buf->b_buf.buf_size = BEGINNING_BUF_SIZE - 1;
-    }
-    new_buf = malloc(ENDING_BUF_SIZE);
-    if (new_buf) {
-        a_buf->e_buf.buf = new_buf;
-        a_buf->e_buf.alloc_len = ENDING_BUF_SIZE;
-        a_buf->e_buf.buf_size = ENDING_BUF_SIZE - 1;
-    }
-}
-
-static void free_abbr_buf(struct abbr_buf *a_buf) {
-    free(a_buf->b_buf.buf);
-    free(a_buf->e_buf.buf);
-}
-
-static void add_line_to_abbr_buf(struct abbr_buf *a_buf, char *linebuf, int linelen) {
-    if (!a_buf->beginning_buf_full) {
-        a_buf->beginning_buf_full =
-            add_line_to_linear_buf(&a_buf->b_buf, linebuf, linelen);
-    }
-    if (a_buf->beginning_buf_full) {
-        add_line_to_circular_buf(&a_buf->e_buf, linebuf, linelen);
-    }
-}
-
-static void print_abbr_buf(struct log_info *log_info) {
-    struct abbr_buf *a_buf = &log_info->a_buf;
-
-    /* Add the abbreviated output to the kernel log */
-    if (a_buf->b_buf.alloc_len) {
-        print_buf_lines(log_info, a_buf->b_buf.buf, a_buf->b_buf.used_len);
-    }
-
-    /* Print an ellipsis to indicate that the buffer has wrapped or
-     * is full, and some data was not logged.
-     */
-    if (a_buf->e_buf.used_len == a_buf->e_buf.buf_size) {
-        do_log_line(log_info, "...\n");
-    }
-
-    if (a_buf->e_buf.used_len == 0) {
-        return;
-    }
-
-    /* Simplest way to print the circular buffer is allocate a second buf
-     * of the same size, and memcpy it so it's a simple linear buffer,
-     * and then cal print_buf_lines on it */
-    if (a_buf->e_buf.read < a_buf->e_buf.write) {
-        /* no wrap around, just print it */
-        print_buf_lines(log_info, a_buf->e_buf.buf + a_buf->e_buf.read,
-                        a_buf->e_buf.used_len);
-    } else {
-        /* The circular buffer will always have at least 1 byte unused,
-         * so by allocating alloc_len here we will have at least
-         * 1 byte of space available as required by print_buf_lines().
-         */
-        char * nbuf = malloc(a_buf->e_buf.alloc_len);
-        if (!nbuf) {
-            return;
-        }
-        int first_chunk_len = a_buf->e_buf.buf_size - a_buf->e_buf.read;
-        memcpy(nbuf, a_buf->e_buf.buf + a_buf->e_buf.read, first_chunk_len);
-        /* copy second chunk */
-        memcpy(nbuf + first_chunk_len, a_buf->e_buf.buf, a_buf->e_buf.write);
-        print_buf_lines(log_info, nbuf, first_chunk_len + a_buf->e_buf.write);
-        free(nbuf);
-    }
-}
-
-static int parent(const char *tag, int parent_read, pid_t pid,
-        int *chld_sts, int log_target, bool abbreviated, char *file_path) {
-    int status = 0;
-    char buffer[4096];
-    struct pollfd poll_fds[] = {
-        [0] = {
-            .fd = parent_read,
-            .events = POLLIN,
-        },
-    };
-    int rc = 0;
-    int fd;
-
-    struct log_info log_info;
-
-    int a = 0;  // start index of unprocessed data
-    int b = 0;  // end index of unprocessed data
-    int sz;
-    bool found_child = false;
-    char tmpbuf[256];
-
-    log_info.btag = basename(tag);
-    if (!log_info.btag) {
-        log_info.btag = (char*) tag;
-    }
-
-    if (abbreviated && (log_target == LOG_NONE)) {
-        abbreviated = 0;
-    }
-    if (abbreviated) {
-        init_abbr_buf(&log_info.a_buf);
-    }
-
-    if (log_target & LOG_KLOG) {
-        snprintf(log_info.klog_fmt, sizeof(log_info.klog_fmt),
-                 "<6>%.*s: %%s", MAX_KLOG_TAG, log_info.btag);
-    }
-
-    if ((log_target & LOG_FILE) && !file_path) {
-        /* No file_path specified, clear the LOG_FILE bit */
-        log_target &= ~LOG_FILE;
-    }
-
-    if (log_target & LOG_FILE) {
-        fd = open(file_path, O_WRONLY | O_CREAT, 0664);
-        if (fd < 0) {
-            ERROR("Cannot log to file %s\n", file_path);
-            log_target &= ~LOG_FILE;
-        } else {
-            lseek(fd, 0, SEEK_END);
-            log_info.fp = fdopen(fd, "a");
-        }
-    }
-
-    log_info.log_target = log_target;
-    log_info.abbreviated = abbreviated;
-
-    while (!found_child) {
-        if (TEMP_FAILURE_RETRY(poll(poll_fds, ARRAY_SIZE(poll_fds), -1)) < 0) {
-            ERROR("poll failed\n");
-            rc = -1;
-            goto err_poll;
-        }
-
-        if (poll_fds[0].revents & POLLIN) {
-            sz = read(parent_read, &buffer[b], sizeof(buffer) - 1 - b);
-
-            sz += b;
-            // Log one line at a time
-            for (b = 0; b < sz; b++) {
-                if (buffer[b] == '\r') {
-                    if (abbreviated) {
-                        /* The abbreviated logging code uses newline as
-                         * the line separator.  Lucikly, the pty layer
-                         * helpfully cooks the output of the command
-                         * being run and inserts a CR before NL.  So
-                         * I just change it to NL here when doing
-                         * abbreviated logging.
-                         */
-                        buffer[b] = '\n';
-                    } else {
-                        buffer[b] = '\0';
-                    }
-                } else if (buffer[b] == '\n') {
-                    buffer[b] = '\0';
-                    log_line(&log_info, &buffer[a], b - a);
-                    a = b + 1;
-                }
-            }
-
-            if (a == 0 && b == sizeof(buffer) - 1) {
-                // buffer is full, flush
-                buffer[b] = '\0';
-                log_line(&log_info, &buffer[a], b - a);
-                b = 0;
-            } else if (a != b) {
-                // Keep left-overs
-                b -= a;
-                memmove(buffer, &buffer[a], b);
-                a = 0;
-            } else {
-                a = 0;
-                b = 0;
-            }
-        }
-
-        if (poll_fds[0].revents & POLLHUP) {
-            int ret;
-
-            ret = waitpid(pid, &status, WNOHANG);
-            if (ret < 0) {
-                rc = errno;
-                ALOG(LOG_ERROR, "logwrap", "waitpid failed with %s\n", strerror(errno));
-                goto err_waitpid;
-            }
-            if (ret > 0) {
-                found_child = true;
-            }
-        }
-    }
-
-    if (chld_sts != NULL) {
-        *chld_sts = status;
-    } else {
-      if (WIFEXITED(status))
-        rc = WEXITSTATUS(status);
-      else
-        rc = -ECHILD;
-    }
-
-    // Flush remaining data
-    if (a != b) {
-      buffer[b] = '\0';
-      log_line(&log_info, &buffer[a], b - a);
-    }
-
-    /* All the output has been processed, time to dump the abbreviated output */
-    if (abbreviated) {
-        print_abbr_buf(&log_info);
-    }
-
-    if (WIFEXITED(status)) {
-      if (WEXITSTATUS(status)) {
-        snprintf(tmpbuf, sizeof(tmpbuf),
-                 "%s terminated by exit(%d)\n", log_info.btag, WEXITSTATUS(status));
-        do_log_line(&log_info, tmpbuf);
-      }
-    } else {
-      if (WIFSIGNALED(status)) {
-        snprintf(tmpbuf, sizeof(tmpbuf),
-                       "%s terminated by signal %d\n", log_info.btag, WTERMSIG(status));
-        do_log_line(&log_info, tmpbuf);
-      } else if (WIFSTOPPED(status)) {
-        snprintf(tmpbuf, sizeof(tmpbuf),
-                       "%s stopped by signal %d\n", log_info.btag, WSTOPSIG(status));
-        do_log_line(&log_info, tmpbuf);
-      }
-    }
-
-err_waitpid:
-err_poll:
-    if (log_target & LOG_FILE) {
-        fclose(log_info.fp); /* Also closes underlying fd */
-    }
-    if (abbreviated) {
-        free_abbr_buf(&log_info.a_buf);
-    }
-    return rc;
-}
-
-static void child(int argc, char* argv[]) {
-    // create null terminated argv_child array
-    char* argv_child[argc + 1];
-    memcpy(argv_child, argv, argc * sizeof(char *));
-    argv_child[argc] = NULL;
-
-    if (execvp(argv_child[0], argv_child)) {
-        FATAL_CHILD("executing %s failed: %s\n", argv_child[0],
-                strerror(errno));
-    }
-}
-
-int android_fork_execvp_ext(int argc, char* argv[], int *status, bool ignore_int_quit,
-        int log_target, bool abbreviated, char *file_path) {
-    pid_t pid;
-    int parent_ptty;
-    int child_ptty;
-    char *child_devname = NULL;
-    struct sigaction intact;
-    struct sigaction quitact;
-    sigset_t blockset;
-    sigset_t oldset;
-    int rc = 0;
-
-    rc = pthread_mutex_lock(&fd_mutex);
-    if (rc) {
-        ERROR("failed to lock signal_fd mutex\n");
-        goto err_lock;
-    }
-
-    /* Use ptty instead of socketpair so that STDOUT is not buffered */
-    parent_ptty = open("/dev/ptmx", O_RDWR);
-    if (parent_ptty < 0) {
-        ERROR("Cannot create parent ptty\n");
-        rc = -1;
-        goto err_open;
-    }
-
-    if (grantpt(parent_ptty) || unlockpt(parent_ptty) ||
-            ((child_devname = (char*)ptsname(parent_ptty)) == 0)) {
-        ERROR("Problem with /dev/ptmx\n");
-        rc = -1;
-        goto err_ptty;
-    }
-
-    child_ptty = open(child_devname, O_RDWR);
-    if (child_ptty < 0) {
-        ERROR("Cannot open child_ptty\n");
-        rc = -1;
-        goto err_child_ptty;
-    }
-
-    sigemptyset(&blockset);
-    sigaddset(&blockset, SIGINT);
-    sigaddset(&blockset, SIGQUIT);
-    pthread_sigmask(SIG_BLOCK, &blockset, &oldset);
-
-    pid = fork();
-    if (pid < 0) {
-        close(child_ptty);
-        ERROR("Failed to fork\n");
-        rc = -1;
-        goto err_fork;
-    } else if (pid == 0) {
-        pthread_mutex_unlock(&fd_mutex);
-        pthread_sigmask(SIG_SETMASK, &oldset, NULL);
-        close(parent_ptty);
-
-        // redirect stdout and stderr
-        dup2(child_ptty, 1);
-        dup2(child_ptty, 2);
-        close(child_ptty);
-
-        child(argc, argv);
-    } else {
-        close(child_ptty);
-        if (ignore_int_quit) {
-            struct sigaction ignact;
-
-            memset(&ignact, 0, sizeof(ignact));
-            ignact.sa_handler = SIG_IGN;
-            sigaction(SIGINT, &ignact, &intact);
-            sigaction(SIGQUIT, &ignact, &quitact);
-        }
-
-        rc = parent(argv[0], parent_ptty, pid, status, log_target,
-                    abbreviated, file_path);
-    }
-
-    if (ignore_int_quit) {
-        sigaction(SIGINT, &intact, NULL);
-        sigaction(SIGQUIT, &quitact, NULL);
-    }
-err_fork:
-    pthread_sigmask(SIG_SETMASK, &oldset, NULL);
-err_child_ptty:
-err_ptty:
-    close(parent_ptty);
-err_open:
-    pthread_mutex_unlock(&fd_mutex);
-err_lock:
-    return rc;
-}