Dump a file to a C hex array

2hex.c

#include <stdio.h>

int
main(void)
{
        FILE                    *f, *out;
        uint8_t                 buf;
        unsigned long           i = 0;

        if ((f = fopen("silence.ogg", "r")) == NULL)
                perror("failed to open");

        if ((out = fopen("array.c", "w")) == NULL)
                perror("failed to open");

        fprintf(out, "unit8_t silence[] = { ");

        while (fread(&buf, 1, 1, f)) {
                if (i++ % 10 == 0) {
                        if (fseek(out, ftell(out)-1, SEEK_SET) != 0)
                                perror("seek");
                        fprintf(out, "\n\t");
                }

                fprintf(out, "0x%02x, ", buf);
        }

        if (fseek(out, ftell(out)-2, SEEK_SET) != 0)
                perror("seek");
        fprintf(out, "\n};");

        fclose(f);
        fclose(out);
}