debloat code that depends on /proc/self/fd/%d with shared function

[musl] / src / process / fexecve.c

diff --git a/src/process/fexecve.c b/src/process/fexecve.c
index 5939181..8ab02a7 100644 (file)
--- a/src/process/fexecve.c
+++ b/src/process/fexecve.c
@@ -2,11 +2,12 @@
 #include <stdio.h>
 #include <errno.h>
 
+void __procfdname(char *, unsigned);
+
 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);
+       char buf[15 + 3*sizeof(int)];
+       __procfdname(buf, fd);
        execve(buf, argv, envp);
        if (errno == ENOENT) errno = EBADF;
        return -1;