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comparison src/c/urweb.c @ 1998:cc7e5d469d1b

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Protect uw_Basis_new_client_source from invalid ctx->id We assume that FFI code may create new contextes with id left unassigned
author Sergey Mironov <grrwlf@gmail.com>
date Wed, 26 Feb 2014 09:43:47 +0000
parents c93fbd139732
children bddee3af70c4
comparison
equal deleted inserted replaced
1997:c93fbd139732 1998:cc7e5d469d1b
1583 } 1583 }
1584 1584
1585 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) { 1585 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
1586 int len; 1586 int len;
1587 size_t s_len = strlen(s); 1587 size_t s_len = strlen(s);
1588
1589 if(ctx->id < 0)
1590 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
1588 1591
1589 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len); 1592 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
1590 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len); 1593 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
1591 ctx->script.front += len; 1594 ctx->script.front += len;
1592 strcpy(ctx->script.front, s); 1595 strcpy(ctx->script.front, s);