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fexecve
Langue: en
Version: 2009-02-04 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
fexecve - execute program specified via file descriptorSYNOPSIS
#define _GNU_SOURCE #include <unistd.h> int fexecve(int fd, char *const argv[], char *const envp[]);
DESCRIPTION
fexecve() performs the same task as execve(2), with the difference that the file to be executed is specified via a file descriptor, fd, rather than via a pathname. The file descriptor fd must be opened read-only, and the caller must have permission to execute the file that it refers to.RETURN VALUE
A successful call to fexecve() never returns. On error, the function returns, with a result value of -1, and errno is set appropriately.ERRORS
Errors are as for execve(2), with the following additions:- EINVAL
- fd is not a valid file descriptor, or argv is NULL, or envp is NULL.
- ENOSYS
- The /proc file system could not be accessed.
VERSIONS
fexecve() is implemented since glibc 2.3.2.CONFORMING TO
POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.NOTES
On Linux, fexecve() is implemented using the proc(5) file system, so /proc needs to be mounted and available at the time of the call.SEE ALSO
execve(2)COLOPHON
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