1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
#include <common.h>
#include <mem_malloc.h>
#include <errno.h>
/*
* Begin and End of memory area for malloc(), and current "brk"
*/
static ulong mem_malloc_start = 0;
static ulong mem_malloc_end = 0;
static ulong mem_malloc_brk = 0;
void mem_malloc_init (void *start, void *end)
{
mem_malloc_start = (ulong)start;
mem_malloc_end = (ulong)end;
mem_malloc_brk = mem_malloc_start;
}
void *sbrk_no_zero(ptrdiff_t increment)
{
ulong old = mem_malloc_brk;
ulong new = old + increment;
if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
return (NULL);
}
memset ((void *)old, 0, increment);
mem_malloc_brk = new;
return ((void *) old);
}
void *sbrk (ptrdiff_t increment)
{
void *old = sbrk_no_zero(increment);
memset (old, 0, increment);
return old;
}
int errno;
#ifndef CONFIG_ERRNO_MESSAGES
static char errno_str[5];
#endif
const char *errno_str(void)
{
#ifdef CONFIG_ERRNO_MESSAGES
char *str;
switch(-errno) {
case 0 : str = "No error"; break;
case EPERM : str = "Operation not permitted"; break;
case ENOENT : str = "No such file or directory"; break;
case EIO : str = "I/O error"; break;
case ENXIO : str = "No such device or address"; break;
case E2BIG : str = "Arg list too long"; break;
case ENOEXEC : str = "Exec format error"; break;
case EBADF : str = "Bad file number"; break;
case ENOMEM : str = "Out of memory"; break;
case EACCES : str = "Permission denied"; break;
case EFAULT : str = "Bad address"; break;
case EBUSY : str = "Device or resource busy"; break;
case EEXIST : str = "File exists"; break;
case ENODEV : str = "No such device"; break;
case ENOTDIR : str = "Not a directory"; break;
case EISDIR : str = "Is a directory"; break;
case EINVAL : str = "Invalid argument"; break;
case ENOSPC : str = "No space left on device"; break;
case ESPIPE : str = "Illegal seek"; break;
case EROFS : str = "Read-only file system"; break;
case ENAMETOOLONG : str = "File name too long"; break;
case ENOSYS : str = "Function not implemented"; break;
case ENOTEMPTY : str = "Directory not empty"; break;
#if 0 /* These are probably not needed */
case ENOTBLK : str = "Block device required"; break;
case EFBIG : str = "File too large"; break;
case EBADSLT : str = "Invalid slot"; break;
case ENODATA : str = "No data available"; break;
case ETIME : str = "Timer expired"; break;
case ENONET : str = "Machine is not on the network"; break;
case EADV : str = "Advertise error"; break;
case ECOMM : str = "Communication error on send"; break;
case EPROTO : str = "Protocol error"; break;
case EBADMSG : str = "Not a data message"; break;
case EOVERFLOW : str = "Value too large for defined data type"; break;
case EBADFD : str = "File descriptor in bad state"; break;
case EREMCHG : str = "Remote address changed"; break;
case EMSGSIZE : str = "Message too long"; break;
case EPROTOTYPE : str = "Protocol wrong type for socket"; break;
case ENOPROTOOPT : str = "Protocol not available"; break;
case EPROTONOSUPPORT : str = "Protocol not supported"; break;
case ESOCKTNOSUPPORT : str = "Socket type not supported"; break;
case EPFNOSUPPORT : str = "Protocol family not supported"; break;
case EAFNOSUPPORT : str = "Address family not supported by protocol"; break;
case EADDRINUSE : str = "Address already in use"; break;
case EADDRNOTAVAIL : str = "Cannot assign requested address"; break;
case ENETDOWN : str = "Network is down"; break;
case ENETUNREACH : str = "Network is unreachable"; break;
case ENETRESET : str = "Network dropped connection because of reset"; break;
case ECONNABORTED : str = "Software caused connection abort"; break;
case ECONNRESET : str = "Connection reset by peer"; break;
case ENOBUFS : str = "No buffer space available"; break;
case ETIMEDOUT : str = "Connection timed out"; break;
case ECONNREFUSED : str = "Connection refused"; break;
case EHOSTDOWN : str = "Host is down"; break;
case EHOSTUNREACH : str = "No route to host"; break;
case EALREADY : str = "Operation already in progress"; break;
case EINPROGRESS : str = "Operation now in progress"; break;
case ESTALE : str = "Stale NFS file handle"; break;
case EISNAM : str = "Is a named type file"; break;
case EREMOTEIO : str = "Remote I/O error"; break;
#endif
default : str = "unknown error"; break;
};
return str;
#else
sprintf(errno_str, "%d", errno);
return errno_str;
#endif
}
void perror(const char *s)
{
#ifdef CONFIG_ERRNO_MESSAGES
printf("%s: %s\n", s, errno_str());
#else
printf("%s returned with %d\n", s, errno);
#endif
}
|