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main: check return value of getcwd()

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Daniel Eklöf 2020-02-20 18:46:45 +01:00
parent f1b1ac39f6
commit eed5052ce8
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1 changed files with 5 additions and 1 deletions
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6
main.c
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@ -314,10 +314,14 @@ main(int argc, char *const *argv)
char *cwd = NULL;
{
errno = 0;
size_t buf_len = 1024;
do {
cwd = realloc(cwd, buf_len);
getcwd(cwd, buf_len);
if (getcwd(cwd, buf_len) == NULL && errno != ERANGE) {
LOG_ERRNO("failed to get current working directory");
goto out;
}
buf_len *= 2;
} while (errno == ERANGE);
}