Prefix safe allocation functions with 'e' instead of 's_'

image.c

@@ -138,7 +138,7 @@ bool img_load_gif(img_t *img, const fileinfo_t *file)
 	if (img->multi.cap == 0) {
 		img->multi.cap = 8;
 		img->multi.frames = (img_frame_t*)
-		                    s_malloc(sizeof(img_frame_t) * img->multi.cap);
+		                    emalloc(sizeof(img_frame_t) * img->multi.cap);
 	}
 	img->multi.cnt = img->multi.sel = 0;
 	img->multi.length = 0;
@@ -190,9 +190,9 @@ bool img_load_gif(img_t *img, const fileinfo_t *file)
 			w = gif->Image.Width;
 			h = gif->Image.Height;
 
-			rows = (GifRowType*) s_malloc(h * sizeof(GifRowType));
+			rows = (GifRowType*) emalloc(h * sizeof(GifRowType));
 			for (i = 0; i < h; i++)
-				rows[i] = (GifRowType) s_malloc(w * sizeof(GifPixelType));
+				rows[i] = (GifRowType) emalloc(w * sizeof(GifPixelType));
 			if (gif->Image.Interlace) {
 				for (i = 0; i < 4; i++) {
 					for (j = intoffset[i]; j < h; j += intjump[i])
@@ -203,7 +203,7 @@ bool img_load_gif(img_t *img, const fileinfo_t *file)
 					DGifGetLine(gif, rows[i], w);
 			}
 
-			ptr = data = (DATA32*) s_malloc(sizeof(DATA32) * sw * sh);
+			ptr = data = (DATA32*) emalloc(sizeof(DATA32) * sw * sh);
 			cmap = gif->Image.ColorMap ? gif->Image.ColorMap : gif->SColorMap;
 			r = cmap->Colors[bg].Red;
 			g = cmap->Colors[bg].Green;
@@ -257,8 +257,8 @@ bool img_load_gif(img_t *img, const fileinfo_t *file)
 			if (img->multi.cnt == img->multi.cap) {
 				img->multi.cap *= 2;
 				img->multi.frames = (img_frame_t*)
-				                    s_realloc(img->multi.frames,
-				                              img->multi.cap * sizeof(img_frame_t));
+				                    erealloc(img->multi.frames,
+				                             img->multi.cap * sizeof(img_frame_t));
 			}
 			img->multi.frames[img->multi.cnt].im = im;
 			img->multi.frames[img->multi.cnt].delay = delay > 0 ? delay : DEF_GIF_DELAY;

main.c

@@ -122,7 +122,7 @@ void check_add_file(char *filename, bool given)
 
 	if (fileidx == filecnt) {
 		filecnt *= 2;
-		files = s_realloc(files, filecnt * sizeof(*files));
+		files = erealloc(files, filecnt * sizeof(*files));
 		memset(&files[filecnt/2], 0, filecnt/2 * sizeof(*files));
 	}
 
@@ -131,7 +131,7 @@ void check_add_file(char *filename, bool given)
 		return;
 	}
 
-	files[fileidx].name = s_strdup(filename);
+	files[fileidx].name = estrdup(filename);
 	if ((bn = strrchr(files[fileidx].name , '/')) != NULL && bn[1] != '\0')
 		files[fileidx].base = ++bn;
 	else
@@ -493,7 +493,7 @@ void run_key_handler(const char *key, unsigned int mask)
 		warn("could not open pipe for key handler");
 		return;
 	}
-	oldst = s_malloc(fcnt * sizeof(*oldst));
+	oldst = emalloc(fcnt * sizeof(*oldst));
 
 	strncpy(win.bar.l.buf, "Running key handler...", win.bar.l.size);
 	win_draw(&win);
@@ -800,7 +800,7 @@ int main(int argc, char **argv)
 	else
 		filecnt = options->filecnt;
 
-	files = s_malloc(filecnt * sizeof(*files));
+	files = emalloc(filecnt * sizeof(*files));
 	memset(files, 0, filecnt * sizeof(*files));
 	fileidx = 0;
 
@@ -865,7 +865,7 @@ int main(int argc, char **argv)
 
 		for (i = 0; i < ARRLEN(cmd); i++) {
 			n = strlen(homedir) + strlen(dsuffix) + strlen(name[i]) + 12;
-			*cmd[i] = (char*) s_malloc(n);
+			*cmd[i] = (char*) emalloc(n);
 			snprintf(*cmd[i], n, "%s%s/sxiv/exec/%s", homedir, dsuffix, name[i]);
 			if (access(*cmd[i], X_OK) != 0) {
 				free(*cmd[i]);

thumbs.c

@@ -48,7 +48,7 @@ char* tns_cache_filepath(const char *filepath)
 	if (strncmp(filepath, cache_dir, strlen(cache_dir)) != 0) {
 		/* don't cache images inside the cache directory! */
 		len = strlen(cache_dir) + strlen(filepath) + 2;
-		cfile = (char*) s_malloc(len);
+		cfile = (char*) emalloc(len);
 		snprintf(cfile, len, "%s/%s", cache_dir, filepath + 1);
 	}
 	return cfile;
@@ -155,7 +155,7 @@ void tns_init(tns_t *tns, fileinfo_t *files, const int *cnt, int *sel,
 	const char *homedir, *dsuffix = "";
 
 	if (cnt != NULL && *cnt > 0) {
-		tns->thumbs = (thumb_t*) s_malloc(*cnt * sizeof(thumb_t));
+		tns->thumbs = (thumb_t*) emalloc(*cnt * sizeof(thumb_t));
 		memset(tns->thumbs, 0, *cnt * sizeof(thumb_t));
 	} else {
 		tns->thumbs = NULL;
@@ -178,7 +178,7 @@ void tns_init(tns_t *tns, fileinfo_t *files, const int *cnt, int *sel,
 	if (homedir != NULL) {
 		free(cache_dir);
 		len = strlen(homedir) + strlen(dsuffix) + 6;
-		cache_dir = (char*) s_malloc(len);
+		cache_dir = (char*) emalloc(len);
 		snprintf(cache_dir, len, "%s%s/sxiv", homedir, dsuffix);
 	} else {
 		warn("could not locate thumbnail cache directory");

util.c

@@ -28,7 +28,7 @@
 
 void cleanup(void);
 
-void* s_malloc(size_t size)
+void* emalloc(size_t size)
 {
 	void *ptr;
 	
@@ -38,7 +38,7 @@ void* s_malloc(size_t size)
 	return ptr;
 }
 
-void* s_realloc(void *ptr, size_t size)
+void* erealloc(void *ptr, size_t size)
 {
 	ptr = realloc(ptr, size);
 	if (ptr == NULL)
@@ -46,16 +46,15 @@ void* s_realloc(void *ptr, size_t size)
 	return ptr;
 }
 
-char* s_strdup(const char *s)
+char* estrdup(const char *s)
 {
-	char *d = NULL;
+	char *d;
+	size_t n = strlen(s) + 1;
 
-	if (s != NULL) {
-		d = malloc(strlen(s) + 1);
-		if (d == NULL)
-			die("could not allocate memory");
-		strcpy(d, s);
-	}
+	d = malloc(n);
+	if (d == NULL)
+		die("could not allocate memory");
+	memcpy(d, s, n);
 	return d;
 }
 
@@ -112,7 +111,7 @@ int r_opendir(r_dir_t *rdir, const char *dirname)
 	}
 
 	rdir->stcap = 512;
-	rdir->stack = (char**) s_malloc(rdir->stcap * sizeof(char*));
+	rdir->stack = (char**) emalloc(rdir->stcap * sizeof(char*));
 	rdir->stlen = 0;
 
 	rdir->name = (char*) dirname;
@@ -158,7 +157,7 @@ char* r_readdir(r_dir_t *rdir)
 				continue;
 
 			len = strlen(rdir->name) + strlen(dentry->d_name) + 2;
-			filename = (char*) s_malloc(len);
+			filename = (char*) emalloc(len);
 			snprintf(filename, len, "%s%s%s", rdir->name,
 			         rdir->name[strlen(rdir->name)-1] == '/' ? "" : "/",
 			         dentry->d_name);
@@ -169,8 +168,8 @@ char* r_readdir(r_dir_t *rdir)
 				/* put subdirectory on the stack */
 				if (rdir->stlen == rdir->stcap) {
 					rdir->stcap *= 2;
-					rdir->stack = (char**) s_realloc(rdir->stack,
-					                                 rdir->stcap * sizeof(char*));
+					rdir->stack = (char**) erealloc(rdir->stack,
+					                                rdir->stcap * sizeof(char*));
 				}
 				rdir->stack[rdir->stlen++] = filename;
 				continue;
@@ -207,7 +206,7 @@ int r_mkdir(const char *path)
 	if (stat(path, &stats) == 0)
 		return S_ISDIR(stats.st_mode) ? 0 : -1;
 
-	d = dir = (char*) s_malloc(strlen(path) + 1);
+	d = dir = (char*) emalloc(strlen(path) + 1);
 	strcpy(dir, path);
 
 	while (d != NULL && err == 0) {

util.h

@@ -61,9 +61,9 @@ typedef struct {
 	int stlen;
 } r_dir_t;
 
-void* s_malloc(size_t);
-void* s_realloc(void*, size_t);
-char* s_strdup(const char*);
+void* emalloc(size_t);
+void* erealloc(void*, size_t);
+char* estrdup(const char*);
 
 void warn(const char*, ...);
 void die(const char*, ...);

window.c

@@ -165,8 +165,8 @@ void win_init(win_t *win)
 
 	win->bar.l.size = BAR_L_LEN;
 	win->bar.r.size = BAR_R_LEN;
-	win->bar.l.buf = s_malloc(win->bar.l.size);
-	win->bar.r.buf = s_malloc(win->bar.r.size);
+	win->bar.l.buf = emalloc(win->bar.l.size);
+	win->bar.r.buf = emalloc(win->bar.r.size);
 	win->bar.h = options->hide_bar ? 0 : barheight;
 
 	INIT_ATOM_(WM_DELETE_WINDOW);
@@ -257,7 +257,7 @@ void win_open(win_t *win)
 	gc = XCreateGC(e->dpy, win->xwin, 0, None);
 
 	n = icons[ARRLEN(icons)-1].size;
-	icon_data = s_malloc((n * n + 2) * sizeof(*icon_data));
+	icon_data = emalloc((n * n + 2) * sizeof(*icon_data));
 
 	for (i = 0; i < ARRLEN(icons); i++) {
 		n = 0;