int
main(int argc, char ** argv) {
struct cmdlineInfo cmdline;
FILE * convFileP;
const char * tempfileName;
pnm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
if (cmdline.dump)
convFileP = pm_openw(cmdline.dump);
else
pm_make_tmpfile(&convFileP, &tempfileName);
writeConvolutionImage(convFileP, cmdline.width, cmdline.height,
PGM_FORMAT);
pm_close(convFileP);
if (cmdline.dump) {
/* We're done. Convolution image is in user's file */
} else {
pm_system_lp("pnmconvol", NULL, NULL, NULL, NULL,
"pnmconvol", tempfileName, cmdline.inputFilespec, NULL);
unlink(tempfileName);
strfree(tempfileName);
}
return 0;
}
void
pm_system(void stdinFeeder(int, void *),
void * const feederParm,
void stdoutAccepter(int, void *),
void * const accepterParm,
const char * const shellCommand) {
/*----------------------------------------------------------------------------
Run a shell and have it run command 'shellCommand'. Feed its
Standard Input with a pipe, which is fed by the routine
'stdinFeeder' with parameter 'feederParm'. Process its Standard
Output with the routine 'stdoutAccepter' with parameter 'accepterParm'.
But if 'stdinFeeder' is NULL, just feed the shell our own Standard
Input. And if 'stdoutFeeder' is NULL, just send its Standard Output
to our own Standard Output.
-----------------------------------------------------------------------------*/
pm_system_lp("/bin/sh",
stdinFeeder, feederParm, stdoutAccepter, accepterParm,
"sh", "-c", shellCommand, NULL);
}
