/* * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> * See LICENSE file for license details. */ #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> #include <sys/wait.h> #include <unistd.h> #include "dwm.h" void error(const char *errstr, ...) { va_list ap; va_start(ap, errstr); vfprintf(stderr, errstr, ap); va_end(ap); exit(1); } static void bad_malloc(unsigned int size) { fprintf(stderr, "fatal: could not malloc() %d bytes\n", (int) size); exit(1); } void * emallocz(unsigned int size) { void *res = calloc(1, size); if(!res) bad_malloc(size); return res; } void * emalloc(unsigned int size) { void *res = malloc(size); if(!res) bad_malloc(size); return res; } void * erealloc(void *ptr, unsigned int size) { void *res = realloc(ptr, size); if(!res) bad_malloc(size); return res; } char * estrdup(const char *str) { char *res = strdup(str); if(!res) bad_malloc(strlen(str)); return res; } void swap(void **p1, void **p2) { void *tmp = *p1; *p1 = *p2; *p2 = tmp; } void spawn(char *argv[]) { if(!argv || !argv[0]) return; if(fork() == 0) { if(fork() == 0) { if(dpy) close(ConnectionNumber(dpy)); setsid(); execvp(argv[0], argv); fprintf(stderr, "dwm: execvp %s", argv[0]); perror(" failed"); } exit (0); } wait(0); }