diff options
Diffstat (limited to 'hurd')
| -rw-r--r-- | hurd/hurdexec.c | 43 | ||||
| -rw-r--r-- | hurd/hurdstartup.c | 46 |
2 files changed, 17 insertions, 72 deletions
diff --git a/hurd/hurdexec.c b/hurd/hurdexec.c index 149e95c..7893c91 100644 --- a/hurd/hurdexec.c +++ b/hurd/hurdexec.c @@ -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 @@ -25,6 +25,7 @@ Cambridge, MA 02139, USA. */ #include <hurd.h> #include <hurd/fd.h> #include <hurd/signal.h> +#include <argz.h> /* Overlay TASK, executing FILE with arguments ARGV and environment ENVP. If TASK == mach_task_self (), some ports are dealloc'd by the exec server. @@ -47,36 +48,10 @@ _hurd_exec (task_t task, file_t file, struct hurd_sigstate *ss; mach_port_t *please_dealloc, *pdp; - - /* Pack the arguments into an array with nulls separating the elements. */ - argslen = 0; - if (argv != NULL) - { - p = argv; - while (*p != NULL) - argslen += strlen (*p++) + 1; - args = __alloca (argslen); - ap = args; - for (p = argv; *p != NULL; ++p) - ap = __memccpy (ap, *p, '\0', ULONG_MAX); - } - else - args = NULL; - - /* Pack the environment into an array with nulls separating elements. */ - envlen = 0; - if (envp != NULL) - { - p = envp; - while (*p != NULL) - envlen += strlen (*p++) + 1; - env = __alloca (envlen); - ap = env; - for (p = envp; *p != NULL; ++p) - ap = __memccpy (ap, *p, '\0', ULONG_MAX); - } - else - env = NULL; + if (err = __argz_create (argv, &args, &argslen)) + return err; + if (err = __argz_create (envp, &env, &envlen)) + goto outargs; /* Load up the ports to give to the new program. */ for (i = 0; i < _hurd_nports; ++i) @@ -88,7 +63,7 @@ _hurd_exec (task_t task, file_t file, { while (--i > 0) _hurd_port_free (&_hurd_ports[i], &ulink_ports[i], ports[i]); - return err; + goto outenv; } } else @@ -254,5 +229,9 @@ _hurd_exec (task_t task, file_t file, __msg_sig_post (_hurd_msgport, 0, __mach_task_self ()); } + outargs: + free (args); + outenv: + free (env); return err; } diff --git a/hurd/hurdstartup.c b/hurd/hurdstartup.c index ca44737..17a7705 100644 --- a/hurd/hurdstartup.c +++ b/hurd/hurdstartup.c @@ -1,5 +1,5 @@ /* Initial program startup for running under the GNU Hurd. -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 @@ -30,6 +30,7 @@ Cambridge, MA 02139, USA. */ #include "set-hooks.h" #include "hurdmalloc.h" /* XXX */ #include "hurdstartup.h" +#include <argz.h> mach_port_t *_hurd_init_dtable; mach_msg_type_number_t _hurd_init_dtablesize; @@ -45,9 +46,6 @@ unsigned long int *__hurd_sigthread_variables; extern void __mach_init (void); -int _hurd_split_args (char *, size_t, char **); - - /* Entry point. This is the first thing in the text segment. The exec server started the initial thread in our task with this spot the @@ -125,9 +123,9 @@ _hurd_startup (void **argptr, void (*main) (int *data)) arguments and environment into vectors of pointers to strings. */ /* Count up the arguments so we can allocate ARGV. */ - argc = _hurd_split_args (args, argslen, NULL); + argc = __argz_count (args, argslen); /* Count up the environment variables so we can allocate ENVP. */ - envc = _hurd_split_args (env, envlen, NULL); + envc = __argz_count (env, envlen); /* There were some arguments. Allocate space for the vectors of pointers and fill them in. We allocate the space for the @@ -138,11 +136,11 @@ _hurd_startup (void **argptr, void (*main) (int *data)) sizeof (struct hurd_startup_data)); *argcptr = argc; argv = (void *) (argcptr + 1); - _hurd_split_args (args, argslen, argv); + __argz_extract (args, argslen, argv); /* There was some environment. */ envp = &argv[argc + 1]; - _hurd_split_args (env, envlen, envp); + __argz_extract (env, envlen, envp); } if (err || in_bootstrap == MACH_PORT_NULL) @@ -197,35 +195,3 @@ _hurd_startup (void **argptr, void (*main) (int *data)) LOSE; abort (); } - -/* Split ARGSLEN bytes at ARGS into words, breaking at NUL characters. If - ARGV is not a null pointer, store a pointer to the start of each word in - ARGV[n], and null-terminate ARGV. Return the number of words split. */ - -int -_hurd_split_args (char *args, size_t argslen, char **argv) -{ - char *p = args; - size_t n = argslen; - int argc = 0; - - while (n > 0) - { - char *end = memchr (p, '\0', n); - - if (argv) - argv[argc] = p; - ++argc; - - if (end == NULL) - /* The last argument is unterminated. */ - break; - - n -= end + 1 - p; - p = end + 1; - } - - if (argv) - argv[argc] = NULL; - return argc; -} |