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| author | Wayne Davison <wayned@users.sourceforge.net> | 2009-03-15 01:04:50 +0000 |
|---|---|---|
| committer | Wayne Davison <wayned@users.sourceforge.net> | 2009-03-15 01:04:50 +0000 |
| commit | bf25c3a43f79f568b55c45e2701f5c961977b47c (patch) | |
| tree | eacd272cd739c11b793aa5788bba21fdc6d1205e /Src/Modules/mapfile.c | |
| parent | f0bcd0ecd0896180c5a3f977e086f7237a774d25 (diff) | |
| download | zsh-bf25c3a43f79f568b55c45e2701f5c961977b47c.tar.gz zsh-bf25c3a43f79f568b55c45e2701f5c961977b47c.zip | |
26735: Check some function return values for failures. Gets rid of
some compiler warnings, and improves error handling/notification.
Diffstat (limited to 'Src/Modules/mapfile.c')
| -rw-r--r-- | Src/Modules/mapfile.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Src/Modules/mapfile.c b/Src/Modules/mapfile.c index d825c7faa..422c7077c 100644 --- a/Src/Modules/mapfile.c +++ b/Src/Modules/mapfile.c @@ -92,7 +92,8 @@ setpmmapfile(Param pm, char *value) * First we need to make sure the file is long enough for * when we msync. On AIX, at least, we just get zeroes otherwise. */ - ftruncate(fd, len); + if (ftruncate(fd, len) < 0) + zwarn("ftruncate failed: %e", errno); memcpy(mmptr, value, len); #ifndef MS_SYNC #define MS_SYNC 0 @@ -102,7 +103,8 @@ setpmmapfile(Param pm, char *value) * Then we need to truncate again, since mmap() always maps complete * pages. Honestly, I tried it without, and you need both. */ - ftruncate(fd, len); + if (ftruncate(fd, len) < 0) + zwarn("ftruncate failed: %e", errno); munmap(mmptr, len); } #else /* don't USE_MMAP */ |