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| author | Frédéric Bérat <fberat@redhat.com> | 2023-06-01 16:27:47 +0200 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2023-06-01 13:01:32 -0400 |
| commit | 29e25f6f136182fb3756d51e03dea7c4d1919dd9 (patch) | |
| tree | 4d3950068c9fec569ae21055641b986632371fbb /stdio-common | |
| parent | a952fcda58cd7aa191140fc9e7d453df212b9117 (diff) | |
| download | glibc-29e25f6f136182fb3756d51e03dea7c4d1919dd9.tar.gz glibc-29e25f6f136182fb3756d51e03dea7c4d1919dd9.tar.xz glibc-29e25f6f136182fb3756d51e03dea7c4d1919dd9.zip | |
tests: fix warn unused results
With fortification enabled, few function calls return result need to be checked, has they get the __wur macro enabled. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'stdio-common')
| -rw-r--r-- | stdio-common/bug19.c | 9 | ||||
| -rw-r--r-- | stdio-common/bug6.c | 8 | ||||
| -rw-r--r-- | stdio-common/tstscanf.c | 14 |
3 files changed, 23 insertions, 8 deletions
diff --git a/stdio-common/bug19.c b/stdio-common/bug19.c index e083304bda..9a3deac3fc 100644 --- a/stdio-common/bug19.c +++ b/stdio-common/bug19.c @@ -29,12 +29,17 @@ do_test (void) printf("checking sscanf\n"); int i, j, n; + int result = 0; i = j = n = 0; - FSCANF (fp, L(" %i - %i %n"), &i, &j, &n); + if (FSCANF (fp, L(" %i - %i %n"), &i, &j, &n) < 2) + { + printf ("FSCANF couldn't read all parameters %d\n", errno); + result = 1; + } + printf ("found %i-%i (length=%i)\n", i, j, n); - int result = 0; if (i != 7) { printf ("i is %d, expected 7\n", i); diff --git a/stdio-common/bug6.c b/stdio-common/bug6.c index 0db63a3b44..50098bf3f2 100644 --- a/stdio-common/bug6.c +++ b/stdio-common/bug6.c @@ -7,16 +7,16 @@ main (void) int i; int lost = 0; - scanf ("%2s", buf); + lost = (scanf ("%2s", buf) < 0); lost |= (buf[0] != 'X' || buf[1] != 'Y' || buf[2] != '\0'); if (lost) puts ("test of %2s failed."); - scanf (" "); - scanf ("%d", &i); + lost |= (scanf (" ") < 0); + lost |= (scanf ("%d", &i) < 0); lost |= (i != 1234); if (lost) puts ("test of %d failed."); - scanf ("%c", buf); + lost |= (scanf ("%c", buf) < 0); lost |= (buf[0] != 'L'); if (lost) puts ("test of %c failed.\n"); diff --git a/stdio-common/tstscanf.c b/stdio-common/tstscanf.c index 3a4ebf7524..7e92df4720 100644 --- a/stdio-common/tstscanf.c +++ b/stdio-common/tstscanf.c @@ -120,7 +120,12 @@ main (int argc, char **argv) int i; float x; char name[50]; - (void) fscanf (in, "%2d%f%*d %[0123456789]", &i, &x, name); + if (fscanf (in, "%2d%f%*d %[0123456789]", &i, &x, name) < 3) + { + fputs ("test failed!\n", stdout); + result = 1; + } + fprintf (out, "i = %d, x = %f, name = \"%.50s\"\n", i, x, name); if (i != 56 || x != 789.0F || strcmp (name, "56")) { @@ -164,7 +169,12 @@ main (int argc, char **argv) quant = 0.0; units[0] = item[0] = '\0'; count = fscanf (in, "%f%20s of %20s", &quant, units, item); - (void) fscanf (in, "%*[^\n]"); + if (fscanf (in, "%*[^\n]") < 0 && ferror (in)) + { + fputs ("test failed!\n", stdout); + result = 1; + } + fprintf (out, "count = %d, quant = %f, item = %.21s, units = %.21s\n", count, quant, item, units); if (count != ok[rounds-1].count || quant != ok[rounds-1].quant |