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Code Issues Projects Releases Wiki Activity

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

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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
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22
backend/tif.c
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@@ -398,7 +398,7 @@ INTERNAL int tif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
file_pos = ftell(tif_file);
if (!tif_lzw_encode(&lzw_state, tif_file, strip_buf, bytes_put)) { /* Only fails if can't malloc */
tif_lzw_cleanup(&lzw_state);
fclose(tif_file); /* Only use LZW if not STDOUT, so ok to close */
(void) fclose(tif_file); /* Only use LZW if not STDOUT, so ok to close */
strcpy(symbol->errtxt, "673: Failed to malloc LZW hash table");
return ZINT_ERROR_MEMORY;
}
@@ -603,15 +603,29 @@ INTERNAL int tif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
total_bytes_put += 6 * color_map_size;
}
if (ferror(tif_file)) {
sprintf(symbol->errtxt, "679: Incomplete write to output (%d: %.30s)", errno, strerror(errno));
if (!output_to_stdout) {
(void) fclose(tif_file);
}
return ZINT_ERROR_FILE_WRITE;
}
if (output_to_stdout) {
fflush(tif_file);
if (fflush(tif_file) != 0) {
sprintf(symbol->errtxt, "980: Incomplete flush to output (%d: %.30s)", errno, strerror(errno));
return ZINT_ERROR_FILE_WRITE;
}
} else {
if (ftell(tif_file) != total_bytes_put) {
fclose(tif_file);
(void) fclose(tif_file);
strcpy(symbol->errtxt, "674: Failed to write all output");
return ZINT_ERROR_FILE_WRITE;
}
fclose(tif_file);
if (fclose(tif_file) != 0) {
sprintf(symbol->errtxt, "981: Failure on closing output file (%d: %.30s)", errno, strerror(errno));
return ZINT_ERROR_FILE_WRITE;
}
}
return 0;