X-Git-Url: https://jasonwoof.com/gitweb/?p=dwm.git;a=blobdiff_plain;f=util.c;h=51acd1aed516d3cdeff714c31b9cd8f455c6c50e;hp=052d535a108fbdc866929cfdd736263f7df5e3db;hb=1479e76f01bf066c441e096ad3f9370b433ce552;hpb=26e134b8a7dae21a699822009674b3131de6e250 diff --git a/util.c b/util.c index 052d535..51acd1a 100644 --- a/util.c +++ b/util.c @@ -1,187 +1,17 @@ -/* - * (C)opyright MMVI Anselm R. Garbe - * See LICENSE file for license details. - */ - +/* See LICENSE file for copyright and license details. */ #include #include #include -#include -#include -#include -#include -#include #include "util.h" -static char *shell = NULL; - void -error(char *errstr, ...) { +die(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; + exit(EXIT_FAILURE); } -void * -erealloc(void *ptr, unsigned int size) -{ - void *res = realloc(ptr, size); - if(!res) - bad_malloc(size); - return res; -} - -char * -estrdup(const char *str) -{ - void *res = strdup(str); - if(!res) - bad_malloc(strlen(str)); - return res; -} - -void -failed_assert(char *a, char *file, int line) -{ - fprintf(stderr, "Assertion \"%s\" failed at %s:%d\n", a, file, line); - abort(); -} - -void -swap(void **p1, void **p2) -{ - void *tmp = *p1; - *p1 = *p2; - *p2 = tmp; -} - -void -spawn(Display *dpy, const char *cmd) -{ - if(!shell && !(shell = getenv("SHELL"))) - shell = "/bin/sh"; - - if(!cmd) - return; - if(fork() == 0) { - if(fork() == 0) { - if(dpy) - close(ConnectionNumber(dpy)); - setsid(); - fprintf(stderr, "gridwm: execlp %s %s -c %s", shell, shell, cmd); - execlp(shell, shell, "-c", cmd, NULL); - fprintf(stderr, "gridwm: execlp %s", cmd); - perror(" failed"); - } - exit (0); - } - wait(0); -} - -void -pipe_spawn(char *buf, unsigned int len, Display *dpy, const char *cmd) -{ - unsigned int l, n; - int pfd[2]; - - if(!shell && !(shell = getenv("SHELL"))) - shell = "/bin/sh"; - - if(!cmd) - return; - - if(pipe(pfd) == -1) { - perror("pipe"); - exit(1); - } - - if(fork() == 0) { - if(dpy) - close(ConnectionNumber(dpy)); - setsid(); - dup2(pfd[1], STDOUT_FILENO); - close(pfd[0]); - close(pfd[1]); - execlp(shell, shell, "-c", cmd, NULL); - fprintf(stderr, "gridwm: execlp %s", cmd); - perror(" failed"); - } - else { - n = 0; - close(pfd[1]); - while(l > n) { - if((l = read(pfd[0], buf + n, len - n)) < 1) - break; - n += l; - } - close(pfd[0]); - buf[n - 1] = 0; - } - wait(0); -} - - -unsigned char * -getselection(unsigned long offset, unsigned long *len, unsigned long *remain) -{ - Display *dpy; - Atom xa_clip_string; - Window w; - XEvent ev; - Atom typeret; - int format; - unsigned char *data; - unsigned char *result = NULL; - - dpy = XOpenDisplay(0); - if(!dpy) - return NULL; - xa_clip_string = XInternAtom(dpy, "_SEL_STRING", False); - w = XCreateSimpleWindow(dpy, DefaultRootWindow(dpy), 10, 10, 200, 200, - 1, CopyFromParent, CopyFromParent); - XConvertSelection(dpy, XA_PRIMARY, XA_STRING, xa_clip_string, - w, CurrentTime); - XFlush(dpy); - XNextEvent(dpy, &ev); - if(ev.type == SelectionNotify && ev.xselection.property != None) { - XGetWindowProperty(dpy, w, ev.xselection.property, offset, 4096L, False, - AnyPropertyType, &typeret, &format, len, remain, &data); - if(*len) { - result = emalloc(sizeof(unsigned char) * *len); - memcpy(result, data, *len); - } - XDeleteProperty(dpy, w, ev.xselection.property); - } - XDestroyWindow(dpy, w); - XCloseDisplay(dpy); - return result; -}