Advanced Programming in the UNIX® Environment

ptg10805159

892 Function Prototypes Appendix A

int vsscanf(const char *restrictbuf,const char *restrictformat,

va_listarg);

<stdarg.h> p. 163

<stdio.h>

Returns: number of input items assigned,EOFif input error

or end of file beforeany conversion

void vsyslog(intpriority,const char *format,va_listarg);

<syslog.h> p. 472

<stdarg.h>

Platforms: FreeBSD 8.0, Linux 3.2.0, Mac OS X 10.6.8, Solaris 10

pid_t wait(int *statloc);

<sys/wait.h> p. 238

Returns: process ID if OK, 0, or−1 on error

int waitid(idtype_tidtype,id_tid,siginfo_t *infop,intoptions);

<sys/wait.h> p. 244

idtype:P_PID, P_PGID, P_ALL

options:WCONTINUED, WEXITED, WNOHANG, WNOWAIT,

WSTOPPED

Returns: 0 if OK,−1 on error

Platforms: Linux 3.2.0, Solaris 10

pid_t waitpid(pid_tpid,int *statloc,intoptions);

<sys/wait.h> p. 238

options:WCONTINUED, WNOHANG, WUNTRACED

Returns: process ID if OK, 0, or−1 on error

pid_t wait3(int *statloc,intoptions,struct rusage *rusage);

<sys/types.h> p. 245

<sys/wait.h>

<sys/time.h>

<sys/resource.h>

options:WNOHANG, WUNTRACED

Returns: process ID if OK, 0, or−1 on error

Platforms: FreeBSD 8.0, Linux 3.2.0, Mac OS X 10.6.8, Solaris 10

pid_t wait4(pid_tpid,int *statloc,intoptions,struct rusage *rusage);

<sys/types.h> p. 245

<sys/wait.h>

<sys/time.h>

<sys/resource.h>

options:WNOHANG, WUNTRACED

Returns: process ID if OK, 0, or−1 on error

Platforms: FreeBSD 8.0, Linux 3.2.0, Mac OS X 10.6.8, Solaris 10