57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* perror(s) print the current error message. */
|
|
|
|
extern int errno;
|
|
char *sys_errlist[] = {
|
|
"Error 0",
|
|
"Not owner",
|
|
"No such file or directory",
|
|
"No such process",
|
|
"Interrupted system call",
|
|
"I/O error",
|
|
"No such device or address",
|
|
"Arg list too long",
|
|
"Exec format error",
|
|
"Bad file number",
|
|
"No children",
|
|
"No more processes",
|
|
"Not enough core",
|
|
"Permission denied",
|
|
"Bad address",
|
|
"Block device required",
|
|
"Mount device busy",
|
|
"File exists",
|
|
"Cross-device link",
|
|
"No such device",
|
|
"Not a directory",
|
|
"Is a directory",
|
|
"Invalid argument",
|
|
"File table overflow",
|
|
"Too many open files",
|
|
"Not a typewriter",
|
|
"Text file busy",
|
|
"File too large",
|
|
"No space left on device",
|
|
"Illegal seek",
|
|
"Read-only file system",
|
|
"Too many links",
|
|
"Broken pipe",
|
|
"Math argument",
|
|
"Result too large"
|
|
};
|
|
|
|
int sys_nerr = sizeof(sys_errlist) / sizeof(sys_errlist[0]);
|
|
|
|
perror(s)
|
|
char *s;
|
|
{
|
|
char *c;
|
|
if (errno < 0 || errno >= sizeof(sys_errlist) / sizeof(char *)) {
|
|
c = "unknown error";
|
|
} else {
|
|
c = sys_errlist[errno];
|
|
}
|
|
write(2, s, strlen(s));
|
|
write(2, ": ", 2);
|
|
write(2, c, strlen(c));
|
|
write(2, "\n", 1);
|
|
}
|