ZBar Bar Code Reader is an open source software suite for reading bar codes from various sources

This memory leak caused the AV capture system to create potentially hundreds of megabytes of notification objects after only a handful of scans. Easy fix.

Otherwise it fails like this:

zbar/decoder/ean.c: In function 'ean_part_end4': zbar/decoder/ean.c:297:13: error: logical not is only applied to the left hand side of comparison [-Werror=logical-not-parentheses] if(!par == fwd) {

Signed-off-by: Vicente Olivert Riera [email protected]

This PR adds support for building the QR code part of ZBar with cmake. Additionally, a conan recipe and a test package were included.

The build and the recipe were tested in Ubuntu 18.04, with C compiler GNU 7.4.0.

i want to compile it by myself with cmake-gui,but i found that the CMakeLists.txt is deficiency,thus i can not generate the .sln flie, so...how do you make it ，could you tell me the detail,thank you

I'd like to report a security issue but cannot find contact instructions on your repository.

If not a hassle, might you kindly add a SECURITY.md file with an email, or another contact method? GitHub recommends this best practice to ensure security issues are responsibly disclosed, and it would serve as a simple instruction for security researchers in the future.

Thank you for your consideration!

As UIWebView is deprecated, Apple will stop accepting apps using UIWebView. So need to migrate to WKWebView. Ref: https://developer.apple.com/news/?id=12232019b

I cross compile libzbar, include config.h.

SIGSEGV caught, and It took some time to figure it out.

However it's not always easy to figure it out in some embedded system, toolchain included gdb in embedded system sometimes not works well as Linux/Unix/Darwin. For example, I can't list source of current file or function in my arm-linux device, even make with the option -g -O0 -rdynamic, and sometimes addr2line works not as well. And no execinfo.h, I can't backtrace with uclibc, I caught SIGSEGV but didn't know segment fault at where, which function, which line.

Another significant influence is that program will abort if segment fault occur. It sounds unreasonable in multithread environment.

I finally found sefault at zbar_image_convert_resize .

I cross compile without libjpeg, no -ljpeg.

I scan jpeg image, conversions[ZBAR_FMT_JPEG][ZBAR_FMT_GRAY].func will be NULL, not _zbar_convert_jpeg_to_y callback.

I print the value with gdb

(gdb) p conversions
$33 = {{{cost = 0, func = 0xb6cf3384 <convert_copy>}, {cost = 8, func = 0xb6cf3500 <convert_uvp_append>}, {cost = 24, func = 0xb6cf2114 <convert_yuv_pack>}, {cost = 32, 
      func = 0xb6cf2418 <convert_yuvp_to_rgb>}, {cost = 8, func = 0xb6cf3500 <convert_uvp_append>}, {cost = -1, func = 0x0}}, {{cost = 1, func = 0xb6cf3384 <convert_copy>}, {cost = 48, 
      func = 0xb6cf28e4 <convert_uvp_resample>}, {cost = 64, func = 0xb6cf2114 <convert_yuv_pack>}, {cost = 128, func = 0xb6cf2418 <convert_yuvp_to_rgb>}, {cost = 40, 
      func = 0xb6cf3500 <convert_uvp_append>}, {cost = -1, func = 0x0}}, {{cost = 24, func = 0xb6cf2ae0 <convert_yuv_unpack>}, {cost = 52, func = 0xb6cf2ae0 <convert_yuv_unpack>}, {cost = 20, 
      func = 0xb6cf2c70 <convert_uv_resample>}, {cost = 144, func = 0xb6cf2630 <convert_yuv_to_rgb>}, {cost = 18, func = 0xb6cf2ae0 <convert_yuv_unpack>}, {cost = -1, func = 0x0}}, {{cost = 112, 
      func = 0xb6cf2e3c <convert_rgb_to_yuvp>}, {cost = 160, func = 0xb6cf2e3c <convert_rgb_to_yuvp>}, {cost = 144, func = 0xb6cf30dc <convert_rgb_to_yuv>}, {cost = 120, 
      func = 0xb6cf1e70 <convert_rgb_resample>}, {cost = 152, func = 0xb6cf2e3c <convert_rgb_to_yuvp>}, {cost = -1, func = 0x0}}, {{cost = 1, func = 0xb6cf3384 <convert_copy>}, {cost = 8, 
      func = 0xb6cf3500 <convert_uvp_append>}, {cost = 24, func = 0xb6cf2114 <convert_yuv_pack>}, {cost = 32, func = 0xb6cf2418 <convert_yuvp_to_rgb>}, {cost = 8, 
      func = 0xb6cf3500 <convert_uvp_append>}, {cost = -1, func = 0x0}}, {{cost = -1, func = 0x0}, {cost = -1, func = 0x0}, {cost = -1, func = 0x0}, {cost = -1, func = 0x0}, {cost = -1, func = 0x0}, {
      cost = -1, func = 0x0}}}
(gdb) p conversions[5][0]
$32 = {cost = -1, func = 0x0}

suggest

if (NULL == func){
        return (NULL);
}
else{
       func(dst, dstfmt, src, srcfmt);
}

so people will handle the error if zbar_image_convert failed, without bothering another thread. NULL returned if NULL == func, we can quickly know the problem and do the error handle.

And I will add #define HAVE_LIBJPEG 1, #define HAVE_JPEGLIB_H 1, and -ljpeg latter.