diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | mach/Machrules | 4 | ||||
| -rw-r--r-- | mach/Makefile | 6 | ||||
| -rw-r--r-- | posix/execvp.c | 43 |
4 files changed, 43 insertions, 16 deletions
@@ -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; } |