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| author | Tom de Vries <tdevries@suse.de> | 2020-11-18 22:15:50 +0100 |
|---|---|---|
| committer | Tom de Vries <tdevries@suse.de> | 2020-11-18 22:15:50 +0100 |
| commit | c44191f8e316f2f4d72d78aaca54a1811840dc70 (patch) | |
| tree | 5b4deba13c27352b4f91391c91b05ba2e3632c8c /gdb/debuginfod-support.c | |
| parent | 7cb2893dfab189edce07144259db882a34e8c93b (diff) | |
| download | gdb-c44191f8e316f2f4d72d78aaca54a1811840dc70.zip gdb-c44191f8e316f2f4d72d78aaca54a1811840dc70.tar.gz gdb-c44191f8e316f2f4d72d78aaca54a1811840dc70.tar.bz2 | |
[gdb] Improve early exits for env var in debuginfod-support.c
There's an early exit in libdebuginfod's debuginfod_query_server, which checks
both for:
- getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL, and
- (getenv (DEBUGINFOD_URLS_ENV_VAR))[0] == '\0'.
In debuginfod_source_query and debuginfod_debuginfo_query (which both
end up calling debuginfod_query_server) there are also early exits checking
the same env var, but those just check for NULL.
Make the early exit tests in debuginfod-support.c match those in
libdebuginfod.
gdb/ChangeLog:
2020-11-18 Tom de Vries <tdevries@suse.de>
* debuginfod-support.c (debuginfod_source_query)
(debuginfod_debuginfo_query): Also do early exit if
"(getenv (DEBUGINFOD_URLS_ENV_VAR))[0] == '\0'".
Diffstat (limited to 'gdb/debuginfod-support.c')
| -rw-r--r-- | gdb/debuginfod-support.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gdb/debuginfod-support.c b/gdb/debuginfod-support.c index ae0f4c6..a7c76ab 100644 --- a/gdb/debuginfod-support.c +++ b/gdb/debuginfod-support.c @@ -111,7 +111,8 @@ debuginfod_source_query (const unsigned char *build_id, const char *srcpath, gdb::unique_xmalloc_ptr<char> *destname) { - if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL) + const char *urls_env_var = getenv (DEBUGINFOD_URLS_ENV_VAR); + if (urls_env_var == NULL || urls_env_var[0] == '\0') return scoped_fd (-ENOSYS); debuginfod_client_up c = debuginfod_init (); @@ -147,7 +148,8 @@ debuginfod_debuginfo_query (const unsigned char *build_id, const char *filename, gdb::unique_xmalloc_ptr<char> *destname) { - if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL) + const char *urls_env_var = getenv (DEBUGINFOD_URLS_ENV_VAR); + if (urls_env_var == NULL || urls_env_var[0] == '\0') return scoped_fd (-ENOSYS); debuginfod_client_up c = debuginfod_init (); |