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getpid does not return the correct result after vfork: $ cat getpid.c #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/types.h> #include <sys/wait.h> int main (void) { if (vfork () == 0) { printf ("%d\n", getpid ()); exit (0); } wait (0); if (vfork () == 0) { printf ("%d\n", getpid ()); exit (0); } wait (0); printf ("%d\n", getpid ()); return 0; } $ ./getpid 31302 31302 31302 Note that the number is actually the pid of the first child, not the parent. Andreas. -- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."
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