PRIV_POPEN(3) Subroutines PRIV_POPEN(3)NAME
priv_popen, priv_pclose - process IO
SYNOPSIS
#include <privman.h>
FILE *priv_popen(const char *command, const char * type, const char
*user,); int priv_pclose(FILE *stream);
DESCRIPTION
The priv_popen() function opens a process by creating a pipe, forking,
and invoking the shell. The type argument may specify only reading or
writing, not both. The resulting stream is correspondingly read-only
or write-only.
The command argument is a pointer to a null-terminated string contain‐
ing a shell command line. The command is bassed to /bin/sh using the
-c flag; interpretation, if any, is performed by the shell. The mode
argument is a pointer to a null-terminated string which must be either
`r' for reading or `w' for writing.
See the man page for popen(3) for more details, as this method paral‐
lels popen(3).
The priv_pclose function waits for the associated process to terminate,
and returns the exit status of the command as returned by wait4.
RETURN VALUE
On success, a pointer to a valid stream is returned. On error, NULL is
returned and errno is set appropriately.
The priv_pclose function returns -1 if wait4 returns an error, or some
other error is detected.
ERRORS
See popen(3) and pclose(3) for more detail. In addition to the errors
listed there, priv_popen may set errno to EPERM if the user is not
listed in an ``run_as'' configuration directive, or if the ``allow_as''
configuration primitive is not set to true. See privman_conf(5) for
more details.
FILES
${prefix}/etc/privman.d/appname
The application's configuration file. See privman_conf(5)BUGS
The file must
AUTHOR
Network Associates. Send email to <privman@nailabs.com>
SEE ALSOpriv_daemon(3)priv_execve(3)priv_fopen(3)priv_fork(3)priv_wait4(3)priv_init(3)privman_conf(5)priv_open(3)priv_pam(3)priv_rerunas(3)priv_respawn_as(3)privman(7)Unix SEPTEMBER 2002 PRIV_POPEN(3)
