52 lines
795 B
C
52 lines
795 B
C
/* See LICENSE.dwm file for copyright and license details. */
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include "util.h"
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void
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die(const char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
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fputc(' ', stderr);
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perror(NULL);
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} else {
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fputc('\n', stderr);
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}
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exit(1);
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}
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void *
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ecalloc(size_t nmemb, size_t size)
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{
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void *p;
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if (!(p = calloc(nmemb, size)))
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die("calloc:");
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return p;
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}
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int
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fd_set_nonblock(int fd) {
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int flags = fcntl(fd, F_GETFL);
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if (flags < 0) {
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perror("fcntl(F_GETFL):");
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return -1;
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}
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if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
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perror("fcntl(F_SETFL):");
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return -1;
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}
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return 0;
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}
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