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Commit 6001c87c authored by Spencer Low's avatar Spencer Low
Browse files

adb: win32: fix StringPrintf format string checking of %zd and PRIu64



At runtime, vsnprintf (and android::base::StringPrintf which calls it)
call a mingw version of vsnprintf, not the vsnprintf from MSVCRT.DLL.
The mingw version properly understands %zd and PRIu64 (the latter,
provided that you #include <inttypes.h>).

The problem was that android::base::StringPrintf was causing
compile-time errors saying that %zd and PRIu64 were not recognized. It
seems that this was because the attribute on the function prototypes
specified `printf' instead of `gnu_printf'. Once that was fixed to match
vsnprintf's attribute, the warnings went away.

This uses similar preprocessor techniques as <android/log.h>.

Also restore a %zd usage to avoid a static_cast<>, and make
print_transfer_progress()'s format string compile-time checkable (and
tweak some types and %llu => PRIu64).

Change-Id: I80b31b9994858a28cb7c6847143b86108b8ab842
Signed-off-by: default avatarSpencer Low <CompareAndSwap@gmail.com>
parent 74f0a578
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+2 −2
Original line number Diff line number Diff line
@@ -145,8 +145,8 @@ bool adb_status(int fd, std::string* error) {
int _adb_connect(const std::string& service, std::string* error) {
    D("_adb_connect: %s\n", service.c_str());
    if (service.empty() || service.size() > 1024) {
        *error = android::base::StringPrintf("bad service name length (%d)",
                                             static_cast<int>(service.size()));
        *error = android::base::StringPrintf("bad service name length (%zd)",
                                             service.size());
        return -1;
    }

+0 −10
Original line number Diff line number Diff line
@@ -1593,11 +1593,7 @@ static int install_multiple_app(TransportType transport, const char* serial, int
        return 1;
    }

#if defined(_WIN32) // Remove when we're using clang for Win32.
    std::string cmd = android::base::StringPrintf("exec:pm install-create -S %u", (unsigned) total_size);
#else
    std::string cmd = android::base::StringPrintf("exec:pm install-create -S %" PRIu64, total_size);
#endif
    for (i = 1; i < first_apk; i++) {
        cmd += " " + escape_arg(argv[i]);
    }
@@ -1638,15 +1634,9 @@ static int install_multiple_app(TransportType transport, const char* serial, int
            goto finalize_session;
        }

#if defined(_WIN32) // Remove when we're using clang for Win32.
        std::string cmd = android::base::StringPrintf(
                "exec:pm install-write -S %u %d %d_%s -",
                (unsigned) sb.st_size, session_id, i, get_basename(file));
#else
        std::string cmd = android::base::StringPrintf(
                "exec:pm install-write -S %" PRIu64 " %d %d_%s -",
                static_cast<uint64_t>(sb.st_size), session_id, i, get_basename(file));
#endif

        int localFd = adb_open(file, O_RDONLY);
        if (localFd < 0) {
+5 −5
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@

#include <dirent.h>
#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
@@ -63,13 +64,12 @@ static void END()
            total_bytes, (t / 1000000LL), (t % 1000000LL) / 1000LL);
}

static const char* transfer_progress_format = "\rTransferring: %llu/%llu (%d%%)";

static void print_transfer_progress(unsigned long long bytes_current,
                                    unsigned long long bytes_total) {
static void print_transfer_progress(uint64_t bytes_current,
                                    uint64_t bytes_total) {
    if (bytes_total == 0) return;

    fprintf(stderr, transfer_progress_format, bytes_current, bytes_total,
    fprintf(stderr, "\rTransferring: %" PRIu64 "/%" PRIu64 " (%d%%)",
            bytes_current, bytes_total,
            (int) (bytes_current * 100 / bytes_total));

    if (bytes_current == bytes_total) {
+19 −3
Original line number Diff line number Diff line
@@ -23,16 +23,32 @@
namespace android {
namespace base {

// These printf-like functions are implemented in terms of vsnprintf, so they
// use the same attribute for compile-time format string checking. On Windows,
// if the mingw version of vsnprintf is used, use `gnu_printf' which allows z
// in %zd and PRIu64 (and related) to be recognized by the compile-time
// checking.
#define FORMAT_ARCHETYPE __printf__
#ifdef __USE_MINGW_ANSI_STDIO
#if __USE_MINGW_ANSI_STDIO
#undef FORMAT_ARCHETYPE
#define FORMAT_ARCHETYPE gnu_printf
#endif
#endif

// Returns a string corresponding to printf-like formatting of the arguments.
std::string StringPrintf(const char* fmt, ...)
    __attribute__((__format__(__printf__, 1, 2)));
    __attribute__((__format__(FORMAT_ARCHETYPE, 1, 2)));

// Appends a printf-like formatting of the arguments to 'dst'.
void StringAppendF(std::string* dst, const char* fmt, ...)
    __attribute__((__format__(__printf__, 2, 3)));
    __attribute__((__format__(FORMAT_ARCHETYPE, 2, 3)));

// Appends a printf-like formatting of the arguments to 'dst'.
void StringAppendV(std::string* dst, const char* format, va_list ap);
void StringAppendV(std::string* dst, const char* format, va_list ap)
    __attribute__((__format__(FORMAT_ARCHETYPE, 2, 0)));

#undef FORMAT_ARCHETYPE

}  // namespace base
}  // namespace android