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authorRoland McGrath <roland@gnu.org>1996-02-14 06:39:32 +0000
committerRoland McGrath <roland@gnu.org>1996-02-14 06:39:32 +0000
commita1c46301bb74628aba2d86340024159f6f5d344a (patch)
tree7392e92f149f9d282b54c0df4dbcc2f5fd36634a
parentde1b40af730a67be98ff1b602756121299afd980 (diff)
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* posix/execvp.c: When executing shell on script, first arg iscvs/libc-960215cvs/libc-960214
full file name, not argv[0]. * mach/Makefile [no_deps]: Inhibit inclusion of mach-syscalls.mk. * mach/Machrules [no_deps]: Inhibit interface rules.
-rw-r--r--ChangeLog6
-rw-r--r--mach/Machrules4
-rw-r--r--mach/Makefile6
-rw-r--r--posix/execvp.c43
4 files changed, 43 insertions, 16 deletions
diff --git a/ChangeLog b/ChangeLog
index 9a5b523..5b71c40 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
Wed Feb 14 01:08:58 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+ * posix/execvp.c: When executing shell on script, first arg is
+ full file name, not argv[0].
+
+ * mach/Makefile [no_deps]: Inhibit inclusion of mach-syscalls.mk.
+ * mach/Machrules [no_deps]: Inhibit interface rules.
+
* malloc/Makefile (distribute): Removed TODO.
Tue Feb 13 05:12:02 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
diff --git a/mach/Machrules b/mach/Machrules
index 843f06f..d4e9ea0 100644
--- a/mach/Machrules
+++ b/mach/Machrules
@@ -1,6 +1,6 @@
# Rules for MiG interfaces that want to go into the C library.
-# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+# Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -58,9 +58,11 @@ define nl # This is needed by *.ir.
endef
ifdef user-interfaces
*.ir := $(addprefix $(objpfx),$(foreach if,$(user-interfaces),$(if).ir))
+ifndef no_deps
ifndef inhibit_interface_rules
include $(*.ir)
endif
+endif
ifneq "$(*.ir)" "$(wildcard $(*.ir))"
# If any .ir file is missing, we will be unable to make all the deps.
no_deps=t
diff --git a/mach/Makefile b/mach/Makefile
index bfabc33..b48cabf 100644
--- a/mach/Makefile
+++ b/mach/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+# Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -45,7 +45,7 @@ user-interfaces := $(addprefix mach/,mach_interface mach_port mach_host \
default_pager default_pager_helper \
)\
$(addprefix device/,device device_request)
-server-interfaces := mach/exc
+server-interfaces := mach/exc
tests := hello
# It is important that we do not use the wildcard function to expand
# `err_*.sub'. Leaving the wildcard allows Make-dist to find all matching
@@ -98,9 +98,11 @@ install-others += $(includedir)/mach/version.h
$(includedir)/mach/version.h: $(mach-srcdir)/sys/version.h; $(do-install)
# Define mach-syscalls and sysno-*.
+ifndef no_deps
ifndef inhibit_mach_syscalls
include $(objpfx)mach-syscalls.mk
endif
+endif
$(objpfx)mach-syscalls.mk: mach/syscall_sw.h syscalls.awk
# Go kludges!!!
sed -n -e '/Unix server implement them/,$$d' \
diff --git a/posix/execvp.c b/posix/execvp.c
index 76a9ba6..a1fcb79 100644
--- a/posix/execvp.c
+++ b/posix/execvp.c
@@ -30,6 +30,8 @@ execvp (file, argv)
const char *file;
char *const argv[];
{
+ int got_eacces = 0;
+
void execute (const char *file, char *const argv[])
{
execv (file, argv);
@@ -39,19 +41,25 @@ execvp (file, argv)
/* The file is accessible but it is not an executable file.
Invoke the shell to interpret it as a script. */
- int argc;
- char **new_argv;
-
/* Count the arguments. */
- for (argc = 0; argv[argc++];);
+ int argc = 0;
+ while (argv[argc++])
+ ;
/* Construct an argument list for the shell. */
- new_argv = __alloca ((argc + 1) * sizeof (char *));
- for (new_argv[0] = _PATH_BSHELL; argc > 0; --argc)
- new_argv[argc] = argv[argc - 1];
-
- /* Execute the shell. */
- execv (new_argv[0], new_argv);
+ {
+ char *new_argv[argc + 1];
+ new_argv[0] = (char *) _PATH_BSHELL;
+ new_argv[1] = (char *) file;
+ while (argc > 1)
+ {
+ new_argv[argc] = argv[argc - 1];
+ --argc;
+ }
+
+ /* Execute the shell. */
+ execv (new_argv[0], new_argv);
+ }
}
}
@@ -102,8 +110,12 @@ execvp (file, argv)
switch (errno)
{
- case ENOENT:
case EACCES:
+ /* Record the we got a `Permission denied' error. If we end
+ up finding no executable we can use, we want to diagnose
+ that we did find one but were denied access. */
+ got_eacces = 1;
+ case ENOENT:
/* Those errors indicate the file is missing or not executable
by us, in which case we want to just try the next path
directory. */
@@ -119,7 +131,12 @@ execvp (file, argv)
while (*p++ != '\0');
}
- /* We tried every element and none of them worked.
- Return the error from the last attempt (probably ENOENT). */
+ /* We tried every element and none of them worked. */
+
+ if (got_eacces)
+ /* At least one failure was due to permissions, so report that error. */
+ errno = EACCES;
+
+ /* Return the error from the last attempt (probably ENOENT). */
return -1;
}