[rrd-users] C Library Help

[Cliff Daniel]

Hello all -  I'm having a bit of trouble writing some c code to rrd.
below is a simple routine that purposely builds the same array (debug reasons)
and then calls the rrd_graph function.  However, the first call always works
but the next one, and all the rest fail saying " unknown option '6' ".
I suspect it's a memory pointer issue due to my lack of experience in this.

Below is the function and the output.  Any help is appreciated.
Solaris 2.6, rrdtool 1.0.39

int graph(char *dir, char *src) {
    char *r_graph[16];
    char **calcpr;
    char tmp[256];
    int  xsize, ysize, r, i;

    r_graph[0] = strdup("graph");
    r_graph[1] = strdup("blah.png");
    r_graph[2] = strdup("--width");
    r_graph[3] = strdup("500");
    r_graph[4] = strdup("--height");
    r_graph[5] = strdup("200");
    r_graph[6] = strdup("--color");
    r_graph[7] = strdup("CANVAS#FFFFFF");
    r_graph[8] = strdup("--color");
    r_graph[9] = strdup("FRAME#FFFFFF");
    r_graph[10] = strdup("--color");
    r_graph[11]= strdup("SHADEB#FFFFFF");
    r_graph[12]= strdup("--start");
    r_graph[13]= strdup("-6h");
    r_graph[14]= strdup("DEF:total=blah.rrd:total:AVERAGE");
    r_graph[15]= strdup("LINE2:total#1000ff");

    for (i=0; i<16;i++) {
        printf("%d: %s\n", i, r_graph[i]);
    }

    r = rrd_graph(16, r_graph, &calcpr, &xsize, &ysize);

    printf("r=%d, x=%d, y=%d\n", r, xsize, ysize);

    return(r);
}

0: graph
1: blah.png
2: --width
3: 500
4: --height
5: 200
6: --color
7: CANVAS#FFFFFF
8: --color
9: FRAME#FFFFFF
10: --color
11: SHADEB#FFFFFF
12: --start
13: -6h
14: DEF:total=blah.rrd:total:AVERAGE
15: LINE2:total#1000ff

r=0, x=595, y=255
0: graph
1: blah.png
2: --width
3: 500
4: --height
5: 200
6: --color
7: CANVAS#FFFFFF
8: --color
9: FRAME#FFFFFF
10: --color
11: SHADEB#FFFFFF
12: --start
13: -6h
14: DEF:total=blah.rrd:total:AVERAGE
15: LINE2:total#1000ff
graph: invalid option -- 6
r=-1, x=595, y=255
unknown option '6'

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