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Use dm_snprintf and improve error handling

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Add standard error reporting with error logging.
Use plain alloc instead of zalloc for string buffer.
Use dm_snprintf with valid test for <0.
This commit is contained in:
Zdenek Kabelac
2012-02-08 12:50:10 +00:00
parent 7ffca95bb6
commit 33dea28e23
2 changed files with 10 additions and 6 deletions
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1
WHATS_NEW
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@@ -1,5 +1,6 @@
Version 2.02.91 -
===================================
Fix error path handling in _build_desc()
Add range test for device number in _scan_proc_dev().
Use signed long for sysconf() call in cmirrord.
Do not write in front of log buffer in print_log().

15
lib/format_text/archiver.c
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@@ -83,13 +83,16 @@ static char *_build_desc(struct dm_pool *mem, const char *line, int before)
size_t len = strlen(line) + 32;
char *buffer;
if (!(buffer = dm_pool_zalloc(mem, strlen(line) + 32)))
return_NULL;
if (!(buffer = dm_pool_alloc(mem, len))) {
log_error("Failed to allocate desc.");
return NULL;
}
if (snprintf(buffer, len,
"Created %s executing '%s'",
before ? "*before*" : "*after*", line) < 0)
return_NULL;
if (dm_snprintf(buffer, len, "Created %s executing '%s'",
before ? "*before*" : "*after*", line) < 0) {
log_error("Failed to build desc.");
return NULL;
}
return buffer;
}