exec.2 (2010 09)

e
exec(2) exec(2)
[EINVAL] argv points to NULL and null pointer dereferencing is allowed. In this case, NULL is
a valid address, but is considered an invalid argument.
[ELOOP] Too many symbolic links were encountered in translating the path name.
[ENAMETOOLONG]
The executable file’s path name or the interpreter’s path name exceeds
PATH_MAX
bytes, or the length of a component of the path name exceeds
NAME_MAX bytes while
_POSIX_NO_TRUNC
is in effect.
[ENOENT] path points to an empty string.
[ENOENT] One or more components of the executable file’s path name or the interpreter’s path
name do not exist.
[ENOEXEC] The executable file is shorter than indicated by the size values in its header, or is oth-
erwise inconsistent. The reliable detection of this error is implementation dependent.
[ENOEXEC] The function call is not
execlp() or execvp(), and the executable file has the
appropriate access permission, but there is neither a valid magic number nor the
characters
#! as the first two bytes of the file’s initial line.
[ENOEXEC] The number of bytes in the initial line of a script file exceeds the system’s maximum.
[ENOMEM] The new process requires more memory than is available or allowed by the system-
imposed maximum.
[ENOTDIR] A component of the executable file’s path prefix or the interpreter’s path prefix is not a
directory.
[EPERM] The process does not have sufficient privileges.
[ETXTBSY] The executable file is currently open for writing.
WARNINGS
Unsharable executable files are not supported. These are files whose
EXEC_MAGIC magic number was
produced with the -N option of ld (see ld(1)).
It is recommended to use the
execve() call in multi-threaded applications to avoid possible deadlocks.
DEPENDENCIES
HP Process Resource Manager
If the optional HP Process Resource Manager (PRM) software is installed and configured, the process’s
process resource group ID is not changed by
exec*(). See prmconfig(1) for a description of how to
configure HP PRM, and prmconf (4) for the definition of process resource group.
SEE ALSO
sh(1), sh-posix(1), kctune(1M), alarm(2), exit(2), fork(2), nice(2), ttrace(2), semop(2), signal(2), times(2),
ulimit(2), umask(2), a.out(4), acl(5), environ(5), privileges(5), signal(5), thread_safety(5).
HP Process Resource Manager: prmconfig(1), prmconf(4) in HP Process Resource Manager User’s Guide.
STANDARDS CONFORMANCE
environ: AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
execl(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
execle(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
execlp(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
execv(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
execve(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
execvp(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1
4 Hewlett-Packard Company − 4 − HP-UX 11i Version 3: September 2010