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Don't crash with a zero-length argument to setb, from J Raynor.

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This commit is contained in:
Nicholas Marriott
2014-03-24 12:00:15 +00:00
parent 77603c4f2d
commit 26c42ad1e4
1 changed files with 3 additions and 2 deletions
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5
cmd-set-buffer.c
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@@ -56,6 +56,9 @@ cmd_set_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
pb = NULL; pb = NULL;
buffer = -1; buffer = -1;
if ((newsize = strlen(args->argv[0])) == 0)
return (CMD_RETURN_NORMAL);
if (args_has(args, 'b')) { if (args_has(args, 'b')) {
buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause); buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
if (cause != NULL) { if (cause != NULL) {
@@ -80,8 +83,6 @@ cmd_set_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
memcpy(pdata, pb->data, psize); memcpy(pdata, pb->data, psize);
} }
newsize = strlen(args->argv[0]);
pdata = xrealloc(pdata, 1, psize + newsize); pdata = xrealloc(pdata, 1, psize + newsize);
memcpy(pdata + psize, args->argv[0], newsize); memcpy(pdata + psize, args->argv[0], newsize);
psize += newsize; psize += newsize;