diff options
| author | Joseph C. Sible <josephcsible@gmail.com> | 2018-09-02 13:42:26 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2018-09-04 19:26:52 -0400 |
| commit | e36f80cba6d5eefcc1ee664f16c2c72054b83134 (patch) | |
| tree | 88e85d4a1c0291ea8c6c0d9f5c993a4fa70482f1 /src/process | |
| parent | 0fa1e638e87cf257e9f96b4019b2076afd674a19 (diff) | |
| download | musl-e36f80cba6d5eefcc1ee664f16c2c72054b83134.tar.gz | |
implement fexecve in terms of execveat when it exists
This lets fexecve work even when /proc isn't mounted.
Diffstat (limited to 'src/process')
| -rw-r--r-- | src/process/fexecve.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/process/fexecve.c b/src/process/fexecve.c index 6507b429..8be3f760 100644 --- a/src/process/fexecve.c +++ b/src/process/fexecve.c @@ -1,10 +1,15 @@ +#define _GNU_SOURCE #include <unistd.h> #include <errno.h> +#include <fcntl.h> +#include "syscall.h" void __procfdname(char *, unsigned); int fexecve(int fd, char *const argv[], char *const envp[]) { + int r = __syscall(SYS_execveat, fd, "", argv, envp, AT_EMPTY_PATH); + if (r != -ENOSYS) return __syscall_ret(r); char buf[15 + 3*sizeof(int)]; __procfdname(buf, fd); execve(buf, argv, envp); |