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Segmentation fault for little or no data

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This commit is contained in:
hooper114 2008-10-09 11:29:09 +00:00
parent fd45a1d277
commit 437cfb823d
3 changed files with 52 additions and 13 deletions
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37
backend/blockf.c
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@ -514,6 +514,31 @@ int data_encode_blockf(unsigned char source[], int subset_selector[], int blockm
} while (exit_status == 0);
if(current_row == 0) {
/* fill up the first row */
for(c = column_position; c <= *(columns_needed); c++) {
if(current_mode == MODEA) {
blockmatrix[current_row][c] = 100; /* Code B */
current_mode = MODEB;
} else {
blockmatrix[current_row][c] = 101; /* Code A */
current_mode = MODEA;
}
}
current_row++;
/* add a second row */
subset_selector[current_row] = MODEA;
current_mode = MODEA;
for(c = 0; c <= *(columns_needed) - 2; c++) {
if(current_mode == MODEA) {
blockmatrix[current_row][c] = 100; /* Code B */
current_mode = MODEB;
} else {
blockmatrix[current_row][c] = 101; /* Code A */
current_mode = MODEA;
}
}
}
*(rows_needed) = current_row + 1;
return error_number;
@ -602,7 +627,6 @@ int codablock(struct zint_symbol *symbol, unsigned char source[])
min_module_height = (0.55 * (columns_needed + 3)) + 3;
if(min_module_height < 8) { min_module_height = 8; }
/* Encode the Row Indicator in the First Row of the Symbol - Table D2 */
if(subset_selector[0] == 99) {
/* Code C */
@ -643,6 +667,13 @@ int codablock(struct zint_symbol *symbol, unsigned char source[])
for(i = 0; i < rows_needed; i++) {
int writer, flip_flop;
printf("row %d: ",i);
printf("103 %d %d [", subset_selector[i], row_indicator[i]);
for(j = 0; j < columns_needed; j++) {
printf("%d ",blockmatrix[i][j]);
}
printf("] %d 106\n", row_check[i]);
strcpy(row_pattern, "");
/* Start character */
concat(row_pattern, C128Table[103]); /* Always Start A */
@ -650,18 +681,14 @@ int codablock(struct zint_symbol *symbol, unsigned char source[])
concat(row_pattern, C128Table[subset_selector[i]]);
concat(row_pattern, C128Table[row_indicator[i]]);
/*printf("103 %d %d ", subset_selector[i], row_indicator[i]);*/
for(j = 0; j < columns_needed; j++) {
concat(row_pattern, C128Table[blockmatrix[i][j]]);
/*printf("%d ",blockmatrix[i][j]);*/
}
concat(row_pattern, C128Table[row_check[i]]);
/* Stop character */
concat(row_pattern, C128Table[106]);
/*printf("%d 106\n", row_check[i]);*/
/* Write the information into the symbol */
writer = 0;