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dwm: use ecalloc, prevent theoretical overflow - dwm - dynamic window manager |
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git clone git://git.suckless.org/dwm |
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LICENSE |
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--- |
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commit e3b7e1d620e18818222c1e5033356ae29dd49e7f |
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parent 04db03a4e69eba88c56c12128340125fb0ef1960 |
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Author: Hiltjo Posthuma <[email protected]> |
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Date: Tue, 20 Oct 2015 23:30:31 +0200 |
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dwm: use ecalloc, prevent theoretical overflow |
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Diffstat: |
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M dwm.c | 9 +++------ |
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1 file changed, 3 insertions(+), 6 deletions(-) |
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--- |
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diff --git a/dwm.c b/dwm.c |
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@@ -630,8 +630,7 @@ Monitor * |
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createmon(void) { |
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Monitor *m; |
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- if(!(m = (Monitor *)calloc(1, sizeof(Monitor)))) |
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- die("fatal: could not malloc() %u bytes\n", sizeof(Monitor)); |
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+ m = ecalloc(1, sizeof(Monitor)); |
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m->tagset[0] = m->tagset[1] = 1; |
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m->mfact = mfact; |
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m->nmaster = nmaster; |
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@@ -1007,8 +1006,7 @@ manage(Window w, XWindowAttributes *wa) { |
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Window trans = None; |
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XWindowChanges wc; |
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- if(!(c = calloc(1, sizeof(Client)))) |
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- die("fatal: could not malloc() %u bytes\n", sizeof(Client)); |
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+ c = ecalloc(1, sizeof(Client)); |
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c->win = w; |
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updatetitle(c); |
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if(XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) { |
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@@ -1788,8 +1786,7 @@ updategeom(void) { |
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for(n = 0, m = mons; m; m = m->next, n++); |
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/* only consider unique geometries as separate screens */ |
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- if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScre… |
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- die("fatal: could not malloc() %u bytes\n", sizeof(Xin… |
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+ unique = ecalloc(nn, sizeof(XineramaScreenInfo)); |
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for(i = 0, j = 0; i < nn; i++) |
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if(isuniquegeom(unique, j, &info[i])) |
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memcpy(&unique[j++], &info[i], sizeof(Xinerama… |
