Butchered version of Night Productions' pidof utility for OS X

pidof.c

#import <sys/sysctl.h>
#import <stdlib.h>
#import <string.h>

int pidof(const char *argv)
{
    struct kinfo_proc *kp;
    int mib[4],nentries,i;
    size_t bufSize=0;

    mib[0]=CTL_KERN;
    mib[1]=KERN_PROC;
    mib[2]=KERN_PROC_ALL;
    mib[3]=0;

    if (sysctl(mib,4,NULL,&bufSize,NULL,0) < 0) {
  return 1;
    }

    kp=(struct kinfo_proc *)malloc(bufSize);
    if (sysctl(mib,4,kp,&bufSize,NULL,0) < 0) {
	return 1;
    }

    nentries=bufSize/sizeof(struct kinfo_proc);
    if (nentries == 0) {
	return 1;
    }

    for (i=nentries; --i >= 0;) {
	char *proc=((&(&kp[i])->kp_proc)->p_comm);
	if (strcasestr(proc, argv) != NULL) {
		return 0;
	}
    }

    return 1;
}


int main(int argc, char *argv[])
{
    if (argc != 2) {
	return 1;
    }

	return pidof(argv[1]);
}