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author | Ulrich Drepper <drepper@redhat.com> | 2002-11-20 04:19:45 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2002-11-20 04:19:45 +0000 |
commit | 51b3c8f6b7022ea2351464d174b77dee3505274f (patch) | |
tree | 33d462107c352a793f605ae0c7ccb0c912c1bb0e /intl/localealias.c | |
parent | 96bbfe3f095556d3718e6b8cf65c143782efb8c3 (diff) | |
download | glibc-51b3c8f6b7022ea2351464d174b77dee3505274f.tar.gz glibc-51b3c8f6b7022ea2351464d174b77dee3505274f.tar.xz glibc-51b3c8f6b7022ea2351464d174b77dee3505274f.zip |
(read_alias_file): Use only about 400 bytes of stack space instead of 16k.
Diffstat (limited to 'intl/localealias.c')
-rw-r--r-- | intl/localealias.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/intl/localealias.c b/intl/localealias.c index f5d4e57dc3..697ef8c43a 100644 --- a/intl/localealias.c +++ b/intl/localealias.c @@ -236,8 +236,10 @@ read_alias_file (fname, fname_len) a) we are only interested in the first two fields b) these fields must be usable as file names and so must not be that long - */ - char buf[BUFSIZ]; + We avoid a multi-kilobyte buffer here since this would use up + stack space which we might not have if the program ran out of + memory. */ + char buf[400]; char *alias; char *value; char *cp; @@ -246,19 +248,6 @@ read_alias_file (fname, fname_len) /* EOF reached. */ break; - /* Possibly not the whole line fits into the buffer. Ignore - the rest of the line. */ - if (strchr (buf, '\n') == NULL) - { - char altbuf[BUFSIZ]; - do - if (FGETS (altbuf, sizeof altbuf, fp) == NULL) - /* Make sure the inner loop will be left. The outer loop - will exit at the `feof' test. */ - break; - while (strchr (altbuf, '\n') == NULL); - } - cp = buf; /* Ignore leading white space. */ while (isspace ((unsigned char) cp[0])) @@ -342,6 +331,14 @@ read_alias_file (fname, fname_len) ++added; } } + + /* Possibly not the whole line fits into the buffer. Ignore + the rest of the line. */ + while (strchr (buf, '\n') == NULL) + if (FGETS (buf, sizeof buf, fp) == NULL) + /* Make sure the inner loop will be left. The outer loop + will exit at the `feof' test. */ + break; } /* Should we test for ferror()? I think we have to silently ignore |