[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/libbb/xfuncs_printf.c b/ap/app/busybox/src/libbb/xfuncs_printf.c
new file mode 100644
index 0000000..05aa07c
--- /dev/null
+++ b/ap/app/busybox/src/libbb/xfuncs_printf.c
@@ -0,0 +1,625 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 2006 Rob Landley
+ * Copyright (C) 2006 Denys Vlasenko
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+/* We need to have separate xfuncs.c and xfuncs_printf.c because
+ * with current linkers, even with section garbage collection,
+ * if *.o module references any of XXXprintf functions, you pull in
+ * entire printf machinery. Even if you do not use the function
+ * which uses XXXprintf.
+ *
+ * xfuncs.c contains functions (not necessarily xfuncs)
+ * which do not pull in printf, directly or indirectly.
+ * xfunc_printf.c contains those which do.
+ */
+
+#include "libbb.h"
+
+
+/* All the functions starting with "x" call bb_error_msg_and_die() if they
+ * fail, so callers never need to check for errors. If it returned, it
+ * succeeded. */
+
+#ifndef DMALLOC
+/* dmalloc provides variants of these that do abort() on failure.
+ * Since dmalloc's prototypes overwrite the impls here as they are
+ * included after these prototypes in libbb.h, all is well.
+ */
+// Warn if we can't allocate size bytes of memory.
+void* FAST_FUNC malloc_or_warn(size_t size)
+{
+ void *ptr = malloc(size);
+ if (ptr == NULL && size != 0)
+ bb_error_msg(bb_msg_memory_exhausted);
+ return ptr;
+}
+
+// Die if we can't allocate size bytes of memory.
+void* FAST_FUNC xmalloc(size_t size)
+{
+ void *ptr = malloc(size);
+ if (ptr == NULL && size != 0)
+ bb_error_msg_and_die(bb_msg_memory_exhausted);
+ return ptr;
+}
+
+// Die if we can't resize previously allocated memory. (This returns a pointer
+// to the new memory, which may or may not be the same as the old memory.
+// It'll copy the contents to a new chunk and free the old one if necessary.)
+void* FAST_FUNC xrealloc(void *ptr, size_t size)
+{
+ ptr = realloc(ptr, size);
+ if (ptr == NULL && size != 0)
+ bb_error_msg_and_die(bb_msg_memory_exhausted);
+ return ptr;
+}
+#endif /* DMALLOC */
+
+// Die if we can't allocate and zero size bytes of memory.
+void* FAST_FUNC xzalloc(size_t size)
+{
+ void *ptr = xmalloc(size);
+ memset(ptr, 0, size);
+ return ptr;
+}
+
+// Die if we can't copy a string to freshly allocated memory.
+char* FAST_FUNC xstrdup(const char *s)
+{
+ char *t;
+
+ if (s == NULL)
+ return NULL;
+
+ t = strdup(s);
+
+ if (t == NULL)
+ bb_error_msg_and_die(bb_msg_memory_exhausted);
+
+ return t;
+}
+
+// Die if we can't allocate n+1 bytes (space for the null terminator) and copy
+// the (possibly truncated to length n) string into it.
+char* FAST_FUNC xstrndup(const char *s, int n)
+{
+ int m;
+ char *t;
+
+ if (ENABLE_DEBUG && s == NULL)
+ bb_error_msg_and_die("xstrndup bug");
+
+ /* We can just xmalloc(n+1) and strncpy into it, */
+ /* but think about xstrndup("abc", 10000) wastage! */
+ m = n;
+ t = (char*) s;
+ while (m) {
+ if (!*t) break;
+ m--;
+ t++;
+ }
+ n -= m;
+ t = xmalloc(n + 1);
+ t[n] = '\0';
+
+ return memcpy(t, s, n);
+}
+
+// Die if we can't open a file and return a FILE* to it.
+// Notice we haven't got xfread(), This is for use with fscanf() and friends.
+FILE* FAST_FUNC xfopen(const char *path, const char *mode)
+{
+ FILE *fp = fopen(path, mode);
+ if (fp == NULL)
+ bb_perror_msg_and_die("can't open '%s'", path);
+ return fp;
+}
+
+// Die if we can't open a file and return a fd.
+int FAST_FUNC xopen3(const char *pathname, int flags, int mode)
+{
+ int ret;
+
+ ret = open(pathname, flags, mode);
+ if (ret < 0) {
+ bb_perror_msg_and_die("can't open '%s'", pathname);
+ }
+ return ret;
+}
+
+// Die if we can't open a file and return a fd.
+int FAST_FUNC xopen(const char *pathname, int flags)
+{
+ return xopen3(pathname, flags, 0666);
+}
+
+/* Die if we can't open an existing file readonly with O_NONBLOCK
+ * and return the fd.
+ * Note that for ioctl O_RDONLY is sufficient.
+ */
+int FAST_FUNC xopen_nonblocking(const char *pathname)
+{
+ return xopen(pathname, O_RDONLY | O_NONBLOCK);
+}
+
+// Warn if we can't open a file and return a fd.
+int FAST_FUNC open3_or_warn(const char *pathname, int flags, int mode)
+{
+ int ret;
+
+ ret = open(pathname, flags, mode);
+ if (ret < 0) {
+ bb_perror_msg("can't open '%s'", pathname);
+ }
+ return ret;
+}
+
+// Warn if we can't open a file and return a fd.
+int FAST_FUNC open_or_warn(const char *pathname, int flags)
+{
+ return open3_or_warn(pathname, flags, 0666);
+}
+
+void FAST_FUNC xunlink(const char *pathname)
+{
+ if (unlink(pathname))
+ bb_perror_msg_and_die("can't remove file '%s'", pathname);
+}
+
+void FAST_FUNC xrename(const char *oldpath, const char *newpath)
+{
+ if (rename(oldpath, newpath))
+ bb_perror_msg_and_die("can't move '%s' to '%s'", oldpath, newpath);
+}
+
+int FAST_FUNC rename_or_warn(const char *oldpath, const char *newpath)
+{
+ int n = rename(oldpath, newpath);
+ if (n)
+ bb_perror_msg("can't move '%s' to '%s'", oldpath, newpath);
+ return n;
+}
+
+void FAST_FUNC xpipe(int filedes[2])
+{
+ if (pipe(filedes))
+ bb_perror_msg_and_die("can't create pipe");
+}
+
+void FAST_FUNC xdup2(int from, int to)
+{
+ if (dup2(from, to) != to)
+ bb_perror_msg_and_die("can't duplicate file descriptor");
+}
+
+// "Renumber" opened fd
+void FAST_FUNC xmove_fd(int from, int to)
+{
+ if (from == to)
+ return;
+ xdup2(from, to);
+ close(from);
+}
+
+// Die with an error message if we can't write the entire buffer.
+void FAST_FUNC xwrite(int fd, const void *buf, size_t count)
+{
+ if (count) {
+ ssize_t size = full_write(fd, buf, count);
+ if ((size_t)size != count)
+ bb_error_msg_and_die("short write");
+ }
+}
+void FAST_FUNC xwrite_str(int fd, const char *str)
+{
+ xwrite(fd, str, strlen(str));
+}
+
+void FAST_FUNC xclose(int fd)
+{
+ if (close(fd))
+ bb_perror_msg_and_die("close failed");
+}
+
+// Die with an error message if we can't lseek to the right spot.
+off_t FAST_FUNC xlseek(int fd, off_t offset, int whence)
+{
+ off_t off = lseek(fd, offset, whence);
+ if (off == (off_t)-1) {
+ if (whence == SEEK_SET)
+ bb_perror_msg_and_die("lseek(%"OFF_FMT"u)", offset);
+ bb_perror_msg_and_die("lseek");
+ }
+ return off;
+}
+
+int FAST_FUNC xmkstemp(char *template)
+{
+ int fd = mkstemp(template);
+ if (fd < 0)
+ bb_perror_msg_and_die("can't create temp file '%s'", template);
+ return fd;
+}
+
+// Die with supplied filename if this FILE* has ferror set.
+void FAST_FUNC die_if_ferror(FILE *fp, const char *fn)
+{
+ if (ferror(fp)) {
+ /* ferror doesn't set useful errno */
+ bb_error_msg_and_die("%s: I/O error", fn);
+ }
+}
+
+// Die with an error message if stdout has ferror set.
+void FAST_FUNC die_if_ferror_stdout(void)
+{
+ die_if_ferror(stdout, bb_msg_standard_output);
+}
+
+int FAST_FUNC fflush_all(void)
+{
+ return fflush(NULL);
+}
+
+
+int FAST_FUNC bb_putchar(int ch)
+{
+ return putchar(ch);
+}
+
+/* Die with an error message if we can't copy an entire FILE* to stdout,
+ * then close that file. */
+void FAST_FUNC xprint_and_close_file(FILE *file)
+{
+ fflush_all();
+ // copyfd outputs error messages for us.
+ if (bb_copyfd_eof(fileno(file), STDOUT_FILENO) == -1)
+ xfunc_die();
+
+ fclose(file);
+}
+
+// Die with an error message if we can't malloc() enough space and do an
+// sprintf() into that space.
+char* FAST_FUNC xasprintf(const char *format, ...)
+{
+ va_list p;
+ int r;
+ char *string_ptr;
+
+ va_start(p, format);
+ r = vasprintf(&string_ptr, format, p);
+ va_end(p);
+
+ if (r < 0)
+ bb_error_msg_and_die(bb_msg_memory_exhausted);
+ return string_ptr;
+}
+
+void FAST_FUNC xsetenv(const char *key, const char *value)
+{
+ if (setenv(key, value, 1))
+ bb_error_msg_and_die(bb_msg_memory_exhausted);
+}
+
+/* Handles "VAR=VAL" strings, even those which are part of environ
+ * _right now_
+ */
+void FAST_FUNC bb_unsetenv(const char *var)
+{
+ char *tp = strchr(var, '=');
+
+ if (!tp) {
+ unsetenv(var);
+ return;
+ }
+
+ /* In case var was putenv'ed, we can't replace '='
+ * with NUL and unsetenv(var) - it won't work,
+ * env is modified by the replacement, unsetenv
+ * sees "VAR" instead of "VAR=VAL" and does not remove it!
+ * horror :( */
+ tp = xstrndup(var, tp - var);
+ unsetenv(tp);
+ free(tp);
+}
+
+void FAST_FUNC bb_unsetenv_and_free(char *var)
+{
+ bb_unsetenv(var);
+ free(var);
+}
+
+// Die with an error message if we can't set gid. (Because resource limits may
+// limit this user to a given number of processes, and if that fills up the
+// setgid() will fail and we'll _still_be_root_, which is bad.)
+void FAST_FUNC xsetgid(gid_t gid)
+{
+ if (setgid(gid)) bb_perror_msg_and_die("setgid");
+}
+
+// Die with an error message if we can't set uid. (See xsetgid() for why.)
+void FAST_FUNC xsetuid(uid_t uid)
+{
+ if (setuid(uid)) bb_perror_msg_and_die("setuid");
+}
+
+// Die if we can't chdir to a new path.
+void FAST_FUNC xchdir(const char *path)
+{
+ if (chdir(path))
+ bb_perror_msg_and_die("can't change directory to '%s'", path);
+}
+
+void FAST_FUNC xchroot(const char *path)
+{
+ if (chroot(path))
+ bb_perror_msg_and_die("can't change root directory to '%s'", path);
+ xchdir("/");
+}
+
+// Print a warning message if opendir() fails, but don't die.
+DIR* FAST_FUNC warn_opendir(const char *path)
+{
+ DIR *dp;
+
+ dp = opendir(path);
+ if (!dp)
+ bb_perror_msg("can't open '%s'", path);
+ return dp;
+}
+
+// Die with an error message if opendir() fails.
+DIR* FAST_FUNC xopendir(const char *path)
+{
+ DIR *dp;
+
+ dp = opendir(path);
+ if (!dp)
+ bb_perror_msg_and_die("can't open '%s'", path);
+ return dp;
+}
+
+// Die with an error message if we can't open a new socket.
+int FAST_FUNC xsocket(int domain, int type, int protocol)
+{
+ int r = socket(domain, type, protocol);
+
+ if (r < 0) {
+ /* Hijack vaguely related config option */
+#if ENABLE_VERBOSE_RESOLUTION_ERRORS
+ const char *s = "INET";
+# ifdef AF_PACKET
+ if (domain == AF_PACKET) s = "PACKET";
+# endif
+# ifdef AF_NETLINK
+ if (domain == AF_NETLINK) s = "NETLINK";
+# endif
+IF_FEATURE_IPV6(if (domain == AF_INET6) s = "INET6";)
+ bb_perror_msg_and_die("socket(AF_%s,%d,%d)", s, type, protocol);
+#else
+ bb_perror_msg_and_die("socket");
+#endif
+ }
+
+ return r;
+}
+
+// Die with an error message if we can't bind a socket to an address.
+void FAST_FUNC xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen)
+{
+ if (bind(sockfd, my_addr, addrlen)) bb_perror_msg_and_die("bind");
+}
+
+// Die with an error message if we can't listen for connections on a socket.
+void FAST_FUNC xlisten(int s, int backlog)
+{
+ if (listen(s, backlog)) bb_perror_msg_and_die("listen");
+}
+
+/* Die with an error message if sendto failed.
+ * Return bytes sent otherwise */
+ssize_t FAST_FUNC xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
+ socklen_t tolen)
+{
+ ssize_t ret = sendto(s, buf, len, 0, to, tolen);
+ if (ret < 0) {
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(s);
+ bb_perror_msg_and_die("sendto");
+ }
+ return ret;
+}
+
+// xstat() - a stat() which dies on failure with meaningful error message
+void FAST_FUNC xstat(const char *name, struct stat *stat_buf)
+{
+ if (stat(name, stat_buf))
+ bb_perror_msg_and_die("can't stat '%s'", name);
+}
+
+void FAST_FUNC xfstat(int fd, struct stat *stat_buf, const char *errmsg)
+{
+ /* errmsg is usually a file name, but not always:
+ * xfstat may be called in a spot where file name is no longer
+ * available, and caller may give e.g. "can't stat input file" string.
+ */
+ if (fstat(fd, stat_buf))
+ bb_simple_perror_msg_and_die(errmsg);
+}
+
+// selinux_or_die() - die if SELinux is disabled.
+void FAST_FUNC selinux_or_die(void)
+{
+#if ENABLE_SELINUX
+ int rc = is_selinux_enabled();
+ if (rc == 0) {
+ bb_error_msg_and_die("SELinux is disabled");
+ } else if (rc < 0) {
+ bb_error_msg_and_die("is_selinux_enabled() failed");
+ }
+#else
+ bb_error_msg_and_die("SELinux support is disabled");
+#endif
+}
+
+int FAST_FUNC ioctl_or_perror_and_die(int fd, unsigned request, void *argp, const char *fmt,...)
+{
+ int ret;
+ va_list p;
+
+ ret = ioctl(fd, request, argp);
+ if (ret < 0) {
+ va_start(p, fmt);
+ bb_verror_msg(fmt, p, strerror(errno));
+ /* xfunc_die can actually longjmp, so be nice */
+ va_end(p);
+ xfunc_die();
+ }
+ return ret;
+}
+
+int FAST_FUNC ioctl_or_perror(int fd, unsigned request, void *argp, const char *fmt,...)
+{
+ va_list p;
+ int ret = ioctl(fd, request, argp);
+
+ if (ret < 0) {
+ va_start(p, fmt);
+ bb_verror_msg(fmt, p, strerror(errno));
+ va_end(p);
+ }
+ return ret;
+}
+
+#if ENABLE_IOCTL_HEX2STR_ERROR
+int FAST_FUNC bb_ioctl_or_warn(int fd, unsigned request, void *argp, const char *ioctl_name)
+{
+ int ret;
+
+ ret = ioctl(fd, request, argp);
+ if (ret < 0)
+ bb_simple_perror_msg(ioctl_name);
+ return ret;
+}
+int FAST_FUNC bb_xioctl(int fd, unsigned request, void *argp, const char *ioctl_name)
+{
+ int ret;
+
+ ret = ioctl(fd, request, argp);
+ if (ret < 0)
+ bb_simple_perror_msg_and_die(ioctl_name);
+ return ret;
+}
+#else
+int FAST_FUNC bb_ioctl_or_warn(int fd, unsigned request, void *argp)
+{
+ int ret;
+
+ ret = ioctl(fd, request, argp);
+ if (ret < 0)
+ bb_perror_msg("ioctl %#x failed", request);
+ return ret;
+}
+int FAST_FUNC bb_xioctl(int fd, unsigned request, void *argp)
+{
+ int ret;
+
+ ret = ioctl(fd, request, argp);
+ if (ret < 0)
+ bb_perror_msg_and_die("ioctl %#x failed", request);
+ return ret;
+}
+#endif
+
+char* FAST_FUNC xmalloc_ttyname(int fd)
+{
+ char *buf = xzalloc(128);
+ int r = ttyname_r(fd, buf, 127);
+ if (r) {
+ free(buf);
+ buf = NULL;
+ }
+ return buf;
+}
+
+void FAST_FUNC generate_uuid(uint8_t *buf)
+{
+ /* http://www.ietf.org/rfc/rfc4122.txt
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | time_low |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | time_mid | time_hi_and_version |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |clk_seq_and_variant | node (0-1) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | node (2-5) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * IOW, uuid has this layout:
+ * uint32_t time_low (big endian)
+ * uint16_t time_mid (big endian)
+ * uint16_t time_hi_and_version (big endian)
+ * version is a 4-bit field:
+ * 1 Time-based
+ * 2 DCE Security, with embedded POSIX UIDs
+ * 3 Name-based (MD5)
+ * 4 Randomly generated
+ * 5 Name-based (SHA-1)
+ * uint16_t clk_seq_and_variant (big endian)
+ * variant is a 3-bit field:
+ * 0xx Reserved, NCS backward compatibility
+ * 10x The variant specified in rfc4122
+ * 110 Reserved, Microsoft backward compatibility
+ * 111 Reserved for future definition
+ * uint8_t node[6]
+ *
+ * For version 4, these bits are set/cleared:
+ * time_hi_and_version & 0x0fff | 0x4000
+ * clk_seq_and_variant & 0x3fff | 0x8000
+ */
+ pid_t pid;
+ int i;
+
+ i = open("/dev/urandom", O_RDONLY);
+ if (i >= 0) {
+ read(i, buf, 16);
+ close(i);
+ }
+ /* Paranoia. /dev/urandom may be missing.
+ * rand() is guaranteed to generate at least [0, 2^15) range,
+ * but lowest bits in some libc are not so "random". */
+ srand(monotonic_us()); /* pulls in printf */
+ pid = getpid();
+ while (1) {
+ for (i = 0; i < 16; i++)
+ buf[i] ^= rand() >> 5;
+ if (pid == 0)
+ break;
+ srand(pid);
+ pid = 0;
+ }
+
+ /* version = 4 */
+ buf[4 + 2 ] = (buf[4 + 2 ] & 0x0f) | 0x40;
+ /* variant = 10x */
+ buf[4 + 2 + 2] = (buf[4 + 2 + 2] & 0x3f) | 0x80;
+}
+
+#if BB_MMU
+pid_t FAST_FUNC xfork(void)
+{
+ pid_t pid;
+ pid = fork();
+ if (pid < 0) /* wtf? */
+ bb_perror_msg_and_die("vfork"+1);
+ return pid;
+}
+#endif