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sch2fig/main.c (main): fail if there is no gfx driver name

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This commit is contained in:
Werner Almesberger 2016-08-01 12:42:27 -03:00
parent c6713dfbd8
commit f8f497c61a
1 changed files with 2 additions and 0 deletions
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2
sch2fig/main.c
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@ -95,6 +95,8 @@ int main(int argc, char *const *argv)
gfx_argv[1] = NULL; gfx_argv[1] = NULL;
} else { } else {
gfx_argc = argc - dashdash - 1; gfx_argc = argc - dashdash - 1;
if (!gfx_argc)
usage(*argv);
gfx_argv = alloc_size(sizeof(const char *) * (gfx_argc + 1)); gfx_argv = alloc_size(sizeof(const char *) * (gfx_argc + 1));
memcpy(gfx_argv, argv + dashdash + 1, memcpy(gfx_argv, argv + dashdash + 1,
sizeof(const char *) * (gfx_argc + 1)); sizeof(const char *) * (gfx_argc + 1));