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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [reent/] [execr.c] - Blame information for rev 1774

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/* Reentrant versions of execution system calls.  These
   implementations just call the usual system calls.  */
 
#include <reent.h>
#include <unistd.h>
#include <_syslist.h>
 
/* Some targets provides their own versions of these functions.  Those
   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */
 
#ifdef _REENT_ONLY
#ifndef REENTRANT_SYSCALLS_PROVIDED
#define REENTRANT_SYSCALLS_PROVIDED
#endif
#endif
 
/* If NO_EXEC is defined, we don't need these functions.  */
 
#if defined (REENTRANT_SYSCALLS_PROVIDED) || defined (NO_EXEC)
 
int _dummy_exec_syscalls = 1;
 
#else
 
/* We use the errno variable used by the system dependent layer.  */
#undef errno
extern int errno;
 
/*
FUNCTION
        <<_execve_r>>---Reentrant version of execve
INDEX
        _execve_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _execve_r(struct _reent *<[ptr]>, char *<[name]>,
                      char **<[argv]>, char **<[env]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _execve_r(<[ptr]>, <[name]>, <[argv]>, <[env]>)
        struct _reent *<[ptr]>;
        char *<[name]>;
        char **<[argv]>;
        char **<[env]>;
 
DESCRIPTION
        This is a reentrant version of <<execve>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
int
_execve_r (ptr, name, argv, env)
     struct _reent *ptr;
     char *name;
     char **argv;
     char **env;
{
  int ret;
 
  errno = 0;
  if ((ret = _execve (name, argv, env)) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
 
/*
FUNCTION
        <<_fork_r>>---Reentrant version of fork
 
INDEX
        _fork_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _fork_r(struct _reent *<[ptr]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _fork_r(<[ptr]>)
        struct _reent *<[ptr]>;
 
DESCRIPTION
        This is a reentrant version of <<fork>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
#ifndef NO_FORK
 
int
_fork_r (ptr)
     struct _reent *ptr;
{
  int ret;
 
  errno = 0;
  if ((ret = _fork ()) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
#endif
 
/*
FUNCTION
        <<_wait_r>>---Reentrant version of wait
 
INDEX
        _wait_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _wait_r(struct _reent *<[ptr]>, int *<[status]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _wait_r(<[ptr]>, <[status]>)
        struct _reent *<[ptr]>;
        int *<[status]>;
 
DESCRIPTION
        This is a reentrant version of <<wait>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
int
_wait_r (ptr, status)
     struct _reent *ptr;
     int *status;
{
  int ret;
 
  errno = 0;
  if ((ret = _wait (status)) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */

Line No.	Rev	Author	Line
1	39	lampret	`/* Reentrant versions of execution system calls. These`
2			`implementations just call the usual system calls. */`
3
4			`#include <reent.h>`
5			`#include <unistd.h>`
6			`#include <_syslist.h>`
7
8			`/* Some targets provides their own versions of these functions. Those`
9			`targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */`
10
11			`#ifdef _REENT_ONLY`
12			`#ifndef REENTRANT_SYSCALLS_PROVIDED`
13			`#define REENTRANT_SYSCALLS_PROVIDED`
14			`#endif`
15			`#endif`
16
17			`/* If NO_EXEC is defined, we don't need these functions. */`
18
19			`#if defined (REENTRANT_SYSCALLS_PROVIDED) \|\| defined (NO_EXEC)`
20
21			`int _dummy_exec_syscalls = 1;`
22
23			`#else`
24
25			`/* We use the errno variable used by the system dependent layer. */`
26			`#undef errno`
27			`extern int errno;`
28
29			`/*`
30			`FUNCTION`
31	56	joel	`<<_execve_r>>---Reentrant version of execve`
32			`INDEX`
33			`_execve_r`
34
35			`ANSI_SYNOPSIS`
36			`#include <reent.h>`
37			`int _execve_r(struct _reent <[ptr]>, char <[name]>,`
38			`char <[argv]>, char <[env]>);`
39
40			`TRAD_SYNOPSIS`
41			`#include <reent.h>`
42			`int _execve_r(<[ptr]>, <[name]>, <[argv]>, <[env]>)`
43			`struct _reent *<[ptr]>;`
44			`char *<[name]>;`
45			`char **<[argv]>;`
46			`char **<[env]>;`
47
48			`DESCRIPTION`
49			`This is a reentrant version of <<execve>>. It`
50			`takes a pointer to the global data block, which holds`
51			`<<errno>>.`
52			`*/`
53
54			`int`
55			`_execve_r (ptr, name, argv, env)`
56			`struct _reent *ptr;`
57			`char *name;`
58			`char **argv;`
59			`char **env;`
60			`{`
61			`int ret;`
62
63			`errno = 0;`
64			`if ((ret = _execve (name, argv, env)) == -1 && errno != 0)`
65			`ptr->_errno = errno;`
66			`return ret;`
67			`}`
68
69
70			`/*`
71			`FUNCTION`
72	39	lampret	`<<_fork_r>>---Reentrant version of fork`
73
74			`INDEX`
75			`_fork_r`
76
77			`ANSI_SYNOPSIS`
78			`#include <reent.h>`
79			`int _fork_r(struct _reent *<[ptr]>);`
80
81			`TRAD_SYNOPSIS`
82			`#include <reent.h>`
83			`int _fork_r(<[ptr]>)`
84			`struct _reent *<[ptr]>;`
85
86			`DESCRIPTION`
87			`This is a reentrant version of <<fork>>. It`
88			`takes a pointer to the global data block, which holds`
89			`<<errno>>.`
90			`*/`
91
92			`#ifndef NO_FORK`
93
94			`int`
95			`_fork_r (ptr)`
96			`struct _reent *ptr;`
97			`{`
98			`int ret;`
99
100			`errno = 0;`
101			`if ((ret = _fork ()) == -1 && errno != 0)`
102			`ptr->_errno = errno;`
103			`return ret;`
104			`}`
105
106			`#endif`
107
108			`/*`
109			`FUNCTION`
110			`<<_wait_r>>---Reentrant version of wait`
111
112			`INDEX`
113			`_wait_r`
114
115			`ANSI_SYNOPSIS`
116			`#include <reent.h>`
117			`int _wait_r(struct _reent <[ptr]>, int <[status]>);`
118
119			`TRAD_SYNOPSIS`
120			`#include <reent.h>`
121			`int _wait_r(<[ptr]>, <[status]>)`
122			`struct _reent *<[ptr]>;`
123			`int *<[status]>;`
124
125			`DESCRIPTION`
126			`This is a reentrant version of <<wait>>. It`
127			`takes a pointer to the global data block, which holds`
128			`<<errno>>.`
129			`*/`
130
131			`int`
132			`_wait_r (ptr, status)`
133			`struct _reent *ptr;`
134			`int *status;`
135			`{`
136			`int ret;`
137
138			`errno = 0;`
139			`if ((ret = _wait (status)) == -1 && errno != 0)`
140			`ptr->_errno = errno;`
141			`return ret;`
142			`}`
143
144			`#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */`

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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [reent/] [execr.c] - Blame information for rev 1774