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Check mmap() return value and unmap at the end

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sin 2014-01-20 11:25:57 +00:00
parent 38f429a3d2
commit fe6144793f
1 changed files with 4 additions and 0 deletions
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4
tr.c
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@ -124,6 +124,8 @@ main(int argc, char *argv[])
mappings = (wchar_t *)mmap(NULL, 0x110000 * sizeof(wchar_t), mappings = (wchar_t *)mmap(NULL, 0x110000 * sizeof(wchar_t),
PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0); PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0);
if (mappings == MAP_FAILED)
eprintf("mmap:");
ARGBEGIN { ARGBEGIN {
default: default:
@ -147,5 +149,7 @@ main(int argc, char *argv[])
if(ferror(stdin)) if(ferror(stdin))
eprintf("<stdin>: read error:"); eprintf("<stdin>: read error:");
munmap(mappings, 0x110000 * sizeof(wchar_t));
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }