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fix execvp failing on not-dir entries in PATH. 

It's better to make execvp continue PATH search on ENOTDIR rather than
issuing an error. Bogus entries should not render rest of PATH invalid.

Maintainer's note: POSIX seems to require the search to continue like
this as part of XBD 8.3 Other Environment Variables. Only errors that
conclusively determine non-existence are candidates for continuing;
otherwise for consistency we have to report the error.
This commit is contained in:
Przemyslaw Pawelczyk 2017-10-23 00:07:42 +02:00 committed by Rich Felker
parent 75cba9c67f
commit 8e0b38060d
1 changed files with 1 additions and 1 deletions
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2
src/process/execvp.c
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@ -40,7 +40,7 @@ int __execvpe(const char *file, char *const argv[], char *const envp[])
memcpy(b+(z-p)+(z>p), file, k+1); memcpy(b+(z-p)+(z>p), file, k+1);
execve(b, argv, envp); execve(b, argv, envp);
if (errno == EACCES) seen_eacces = 1; if (errno == EACCES) seen_eacces = 1;
else if (errno != ENOENT) return -1; else if (errno != ENOENT && errno != ENOTDIR) return -1;
if (!*z++) break; if (!*z++) break;
} }
if (seen_eacces) errno = EACCES; if (seen_eacces) errno = EACCES;