 gplotGenCommandFile(GPLOT  *gplot)
 {
char     buf[L_BUFSIZE];
 char    *cmdstr, *plottitle, *dataname;
 l_int32  i, plotstyle, nplots;
 FILE    *fp;

    PROCNAME("gplotGenCommandFile");

    if (!gplot)
        return ERROR_INT("gplot not defined", procName, 1);

        /* Remove any previous command data */
    sarrayClear(gplot->cmddata);
 
         /* Generate command data instructions */
     if (gplot->title) {   /* set title */
        snprintf(buf, L_BUFSIZE, "set title '%s'", gplot->title);
         sarrayAddString(gplot->cmddata, buf, L_COPY);
     }
     if (gplot->xlabel) {   /* set xlabel */
        snprintf(buf, L_BUFSIZE, "set xlabel '%s'", gplot->xlabel);
         sarrayAddString(gplot->cmddata, buf, L_COPY);
     }
     if (gplot->ylabel) {   /* set ylabel */
        snprintf(buf, L_BUFSIZE, "set ylabel '%s'", gplot->ylabel);
         sarrayAddString(gplot->cmddata, buf, L_COPY);
     }
 
         /* Set terminal type and output */
     if (gplot->outformat == GPLOT_PNG) {
        snprintf(buf, L_BUFSIZE, "set terminal png; set output '%s'",
                  gplot->outname);
     } else if (gplot->outformat == GPLOT_PS) {
        snprintf(buf, L_BUFSIZE, "set terminal postscript; set output '%s'",
                  gplot->outname);
     } else if (gplot->outformat == GPLOT_EPS) {
        snprintf(buf, L_BUFSIZE,
                  "set terminal postscript eps; set output '%s'",
                  gplot->outname);
     } else if (gplot->outformat == GPLOT_LATEX) {
        snprintf(buf, L_BUFSIZE, "set terminal latex; set output '%s'",
                  gplot->outname);
     }
     sarrayAddString(gplot->cmddata, buf, L_COPY);
 
     if (gplot->scaling == GPLOT_LOG_SCALE_X ||
         gplot->scaling == GPLOT_LOG_SCALE_X_Y) {
        snprintf(buf, L_BUFSIZE, "set logscale x");
         sarrayAddString(gplot->cmddata, buf, L_COPY);
     }
     if (gplot->scaling == GPLOT_LOG_SCALE_Y ||
         gplot->scaling == GPLOT_LOG_SCALE_X_Y) {
        snprintf(buf, L_BUFSIZE, "set logscale y");
         sarrayAddString(gplot->cmddata, buf, L_COPY);
     }
 
    nplots = sarrayGetCount(gplot->datanames);
    for (i = 0; i < nplots; i++) {
        plottitle = sarrayGetString(gplot->plottitles, i, L_NOCOPY);
         dataname = sarrayGetString(gplot->datanames, i, L_NOCOPY);
         numaGetIValue(gplot->plotstyles, i, &plotstyle);
         if (nplots == 1) {
            snprintf(buf, L_BUFSIZE, "plot '%s' title '%s' %s",
                      dataname, plottitle, gplotstylenames[plotstyle]);
         } else {
             if (i == 0)
                snprintf(buf, L_BUFSIZE, "plot '%s' title '%s' %s, \\",
                      dataname, plottitle, gplotstylenames[plotstyle]);
             else if (i < nplots - 1)
                snprintf(buf, L_BUFSIZE, " '%s' title '%s' %s, \\",
                      dataname, plottitle, gplotstylenames[plotstyle]);
             else
                snprintf(buf, L_BUFSIZE, " '%s' title '%s' %s",
                      dataname, plottitle, gplotstylenames[plotstyle]);
         }
         sarrayAddString(gplot->cmddata, buf, L_COPY);
    }

        /* Write command data to file */
    cmdstr = sarrayToString(gplot->cmddata, 1);
    if ((fp = fopenWriteStream(gplot->cmdname, "w")) == NULL) {
        LEPT_FREE(cmdstr);
        return ERROR_INT("cmd stream not opened", procName, 1);
    }
    fwrite(cmdstr, 1, strlen(cmdstr), fp);
    fclose(fp);
    LEPT_FREE(cmdstr);
    return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.