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