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reads: fix bug 1078

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This commit is contained in:
Denis Vlasenko 2006-10-31 22:46:08 +00:00
parent 4126b1f5c6
commit b141b9b512
1 changed files with 2 additions and 1 deletions
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3
libbb/read.c
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@ -86,7 +86,8 @@ char *reads(int fd, char *buffer, size_t size)
if (p) { if (p) {
off_t offset; off_t offset;
*p++ = '\0'; *p++ = '\0';
offset = (p-buffer) - size; // avoid incorrect (unsigned) widening
offset = (off_t)(p-buffer) - (off_t)size;
// set fd position the right after the \n // set fd position the right after the \n
if (offset && lseek(fd, offset, SEEK_CUR) == (off_t)-1) if (offset && lseek(fd, offset, SEEK_CUR) == (off_t)-1)
return NULL; return NULL;