Re: Open file from menu

[Liam R E Quin <liam holoweb net>]

On Tue, 2012-07-10 at 00:55 +0530, Rudra Banerjee wrote:
> Will anyone kindly show the way?


> stat(argv[1], &filestat);
> buffer = (char *) malloc(filestat.st_size * sizeof (char));
> efile = fopen(argv[1], "r");
> fread(buffer, filestat.st_size, 1, efile);
> gtk_text_buffer_set_text(textbuffer, buffer, filestat.st_size);
> free(buffer);

In C you need to check the return status of all system calls.

As Michael already said, first make sure argc > 1;
if a filename was given, make sure that filestat is a struct stat:

struct stat filestat;

Make sure the malloc() successed - if there's not enoug hmemory it'll
return NULL.

Make sure the fopen() succeeded; it too will return NULL on failure.

Strictly speaking you should close the file, too, with fclose(efile),
and check that worked and also check that the free() was OK, if only to
help you catch programming errors!

Liam

-- 
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
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