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authorRich Felker <dalias@aerifal.cx>2011-02-27 02:59:23 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-27 02:59:23 -0500
commitf2374ed852654ca13404986d8c04f82bf58812cb (patch)
treee221764ed9590fe28df82e3bb0a3455573c6015c
parent015d33c5075b9c0a4df8f28e844e4f7ace91c647 (diff)
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implement fexecve
-rw-r--r--include/unistd.h1
-rw-r--r--src/process/fexecve.c10
2 files changed, 11 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index c0994af4..f819429e 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -86,6 +86,7 @@ int execle(const char *, ...);
 int execl(const char *, ...);
 int execvp(const char *, char *const []);
 int execlp(const char *, ...);
+int fexecve(int, char *const [], char *const []);
 void _exit(int);
 
 pid_t getpid(void);
diff --git a/src/process/fexecve.c b/src/process/fexecve.c
new file mode 100644
index 00000000..3098645d
--- /dev/null
+++ b/src/process/fexecve.c
@@ -0,0 +1,10 @@
+#include <unistd.h>
+#include <stdio.h>
+
+int fexecve(int fd, char *const argv[], char *const envp[])
+{
+	static const char proc[] = "/proc/self/fd/%d";
+	char buf[sizeof proc + 3*sizeof(int)];
+	snprintf(buf, sizeof buf, proc, fd);
+	return execve(buf, argv, envp);
+}