mirrors/zint-barcode-generator
1
0
Fork 0
mirror of https://git.code.sf.net/p/zint/code synced 2025-05-28 05:54:19 -04:00
Code Issues Projects Releases Packages Wiki Activity

- BMP/EMF/EPS/GIF/PCX/PNG/SVG/TIF/TXT: check for errors on writing

Browse source 
to output file; ZBarcode_Encode_File: check `fseek()` for errors
  (ticket #275)
- man page: fix Code 11 check digit info
- manual/man page: document octal escape; Code 128 subset/mode ->
  Code Set
This commit is contained in:
gitlost 2022-12-19 16:28:15 +00:00
parent a54bdc0299
commit 268fdd7fc2
18 changed files with 318 additions and 140 deletions
Download patch file Download diff file Expand all files Collapse all files

23
backend/bmp.c
View file

@ -199,18 +199,35 @@ INTERNAL int bmp_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
bmp_file = stdout;
} else {
if (!(bmp_file = out_fopen(symbol->outfile, "wb"))) {
free(bitmap_file_start);
sprintf(symbol->errtxt, "601: Could not open output file (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_ACCESS;
}
}
fwrite(bitmap_file_start, file_header.file_size, 1, bmp_file);
if (ferror(bmp_file)) {
sprintf(symbol->errtxt, "603: Incomplete write to output (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
if (!output_to_stdout) {
(void) fclose(bmp_file);
}
return ZINT_ERROR_FILE_WRITE;
}
if (output_to_stdout) {
fflush(bmp_file);
if (fflush(bmp_file) != 0) {
sprintf(symbol->errtxt, "604: Incomplete flush to output (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_WRITE;
}
} else {
fclose(bmp_file);
if (fclose(bmp_file) != 0) {
sprintf(symbol->errtxt, "605: Failure on closing output file (%d: %.30s)", errno, strerror(errno));
free(bitmap_file_start);
return ZINT_ERROR_FILE_WRITE;
}
}
free(bitmap_file_start);