X-Git-Url: https://jasonwoof.com/gitweb/?p=dwm.git;a=blobdiff_plain;f=util.c;h=2414b394fc7a2fe81b5b3043ea1c937be7cb9e2d;hp=1e36b2575e902dc36a4ae908df6afac6e15bd4d9;hb=b43989207a949cbc17182b451aa527afe542c98f;hpb=849e631510ed6533ac930449804e477fe67a43c2 diff --git a/util.c b/util.c index 1e36b25..2414b39 100644 --- a/util.c +++ b/util.c @@ -3,7 +3,6 @@ * See LICENSE file for license details. */ #include "dwm.h" - #include #include #include @@ -15,9 +14,7 @@ static void bad_malloc(unsigned int size) { - fprintf(stderr, "fatal: could not malloc() %d bytes\n", - (int) size); - exit(EXIT_FAILURE); + eprint("fatal: could not malloc() %u bytes\n", size); } /* extern */ @@ -26,36 +23,52 @@ void * emallocz(unsigned int size) { void *res = calloc(1, size); + if(!res) bad_malloc(size); return res; } void -eprint(const char *errstr, ...) { +eprint(const char *errstr, ...) +{ va_list ap; + va_start(ap, errstr); vfprintf(stderr, errstr, ap); va_end(ap); exit(EXIT_FAILURE); } +void * +erealloc(void *ptr, unsigned int size) +{ + void *res = realloc(ptr, size); + if(!res) + bad_malloc(size); + return res; +} + void spawn(Arg *arg) { - char **argv = (char **)arg->argv; - if(!argv || !argv[0]) + static char *shell = NULL; + + if(!shell && !(shell = getenv("SHELL"))) + shell = "/bin/sh"; + + if(!arg->cmd) return; if(fork() == 0) { if(fork() == 0) { if(dpy) close(ConnectionNumber(dpy)); setsid(); - execvp(argv[0], argv); - fprintf(stderr, "dwm: execvp %s", argv[0]); + execl(shell, shell, "-c", arg->cmd, NULL); + fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg->cmd); perror(" failed"); } - exit(EXIT_FAILURE); + exit(0); } wait(0); }