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https://github.com/Tha14/toxic.git
synced 2024-11-14 05:03:03 +01:00
Fix a few resource leaks
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parent
15846d2b50
commit
abb39ea6b5
@ -105,7 +105,7 @@ int ID_to_QRcode_txt(const char *tox_id, const char *outfile)
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int ID_to_QRcode_png(const char *tox_id, const char *outfile)
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{
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static FILE *fp;
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unsigned char *row, *p;
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unsigned char *p;
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unsigned char black[4] = {0, 0, 0, 255};
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size_t x, y, xx, yy, real_width;
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size_t margin = BORDER_LEN;
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@ -116,31 +116,40 @@ int ID_to_QRcode_png(const char *tox_id, const char *outfile)
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fp = fopen(outfile, "wb");
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if (fp == NULL)
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if (fp == NULL) {
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return -1;
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}
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QRcode *qr_obj = QRcode_encodeString(tox_id, 0, QR_ECLEVEL_L, QR_MODE_8, 0);
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if (qr_obj == NULL)
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if (qr_obj == NULL) {
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fclose(fp);
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return -1;
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}
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real_width = (qr_obj->width + margin * 2) * size;
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row = malloc(real_width * 4);
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if (row == NULL)
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return -1;
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size_t row_size = real_width * 4;
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unsigned char row[row_size];
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png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if (png_ptr == NULL)
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if (png_ptr == NULL) {
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fclose(fp);
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QRcode_free(qr_obj);
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return -1;
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}
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL)
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if (info_ptr == NULL) {
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fclose(fp);
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QRcode_free(qr_obj);
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return -1;
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}
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if (setjmp(png_jmpbuf(png_ptr))) {
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fclose(fp);
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QRcode_free(qr_obj);
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png_destroy_write_struct(&png_ptr, &info_ptr);
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return -1;
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}
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@ -154,40 +163,44 @@ int ID_to_QRcode_png(const char *tox_id, const char *outfile)
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png_write_info(png_ptr, info_ptr);
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/* top margin */
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memset(row, 0xff, real_width * 4);
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memset(row, 0xff, row_size);
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for (y = 0; y < margin * size; y++)
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for (y = 0; y < margin * size; y++) {
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png_write_row(png_ptr, row);
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}
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/* data */
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p = qr_obj->data;
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for (y = 0; y < qr_obj->width; y++) {
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memset(row, 0xff, real_width * 4);
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memset(row, 0xff, row_size);
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for (x = 0; x < qr_obj->width; x++) {
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for (xx = 0; xx < size; xx++)
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if (*p & 1)
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for (xx = 0; xx < size; xx++) {
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if (*p & 1) {
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memcpy(&row[((margin + x) * size + xx) * 4], black, 4);
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}
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}
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p++;
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}
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for (yy = 0; yy < size; yy++)
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for (yy = 0; yy < size; yy++) {
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png_write_row(png_ptr, row);
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}
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}
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/* bottom margin */
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memset(row, 0xff, real_width * 4);
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memset(row, 0xff, row_size);
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for (y = 0; y < margin * size; y++)
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for (y = 0; y < margin * size; y++) {
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png_write_row(png_ptr, row);
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}
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png_write_end(png_ptr, info_ptr);
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png_destroy_write_struct(&png_ptr, &info_ptr);
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fclose(fp);
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free(row);
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QRcode_free(qr_obj);
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return 0;
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