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#include <stdio.h>
#include <stdlib.h>
static const char usage[] = /* .. */
{"zzipsetstub <zipfile> <zipsfxstub>... \n"
" overwrite the header of the zipfile with the sfxstub code.\n"
" this is usually the last step in creating a selfextract archive\n"
" or an application with all its data appended as a zip.\n"};
int
main(int argc, char** argv)
{
int argn;
if (argc <= 2) {
printf(usage);
exit(0);
}
{
char buf[17];
int n;
char* zipfile = 0;
FILE* zipFILE = 0;
char* sfxfile = 0;
FILE* sfxFILE = 0;
for (argn = 1; argn < argc; argn++) {
if (argv[argn][0] == '-')
continue;
if (! zipfile) {
zipfile = argv[argn];
continue;
}
if (! sfxfile) {
sfxfile = argv[argn];
continue;
}
/* superflous argument */
}
zipFILE = fopen(zipfile, "r+b");
if (! zipFILE) {
perror(zipfile);
return 1;
}
sfxFILE = fopen(sfxfile, "rb");
if (! sfxFILE) {
perror(sfxfile);
return 1;
}
while (0 < (n = fread(buf, 1, 16, sfxFILE))) {
buf[n] = '\0';
fwrite(buf, 1, n, zipFILE);
}
if (n == -1)
perror(argv[argn]);
fclose(sfxFILE);
fclose(zipFILE);
}
return 0;
}
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