helpful errors

2 files changed, 8 insertions, 3 deletions

diff --git a/dmenu.c b/dmenu.c
index d8ef88f..5be73f7 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -440,9 +440,9 @@ readstdin(void) {
                 if((p = strchr(buf, '\n')))
                         *p = '\0';
                 if(!(item = calloc(1, sizeof *item)))
-                        eprintf("cannot malloc %u bytes\n", sizeof *item);
+                        eprintf("cannot malloc %u bytes:", sizeof *item);
                 if(!(item->text = strdup(buf)))
-                        eprintf("cannot strdup %u bytes\n", strlen(buf)+1);
+                        eprintf("cannot strdup %u bytes:", strlen(buf)+1);
                 inputw = MAX(inputw, textw(dc, item->text));
         }
 }
diff --git a/draw.c b/draw.c
index 80a5074..83ced4b 100644
--- a/draw.c
+++ b/draw.c
@@ -68,6 +68,11 @@ eprintf(const char *fmt, ...) {
         va_start(ap, fmt);
         vfprintf(stderr, fmt, ap);
         va_end(ap);
+
+        if(fmt[strlen(fmt)-1] == ':') {
+                fputc(' ', stderr);
+                perror(NULL);
+        }
         exit(EXIT_FAILURE);
 }
 
@@ -101,7 +106,7 @@ initdc(void) {
         if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
                 weprintf("no locale support\n");
         if(!(dc = calloc(1, sizeof *dc)))
-                eprintf("cannot malloc %u bytes\n", sizeof *dc);
+                eprintf("cannot malloc %u bytes:", sizeof *dc);
         if(!(dc->dpy = XOpenDisplay(NULL)))
                 eprintf("cannot open display\n");