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Factor out closing all file descriptors for later optimisation.

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This commit is contained in:
Simon Kelley
2020-03-02 17:10:25 +00:00
parent c992ed4bef
commit 0541a1adf7
4 changed files with 19 additions and 16 deletions
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9
src/util.c
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@@ -705,6 +705,15 @@ int read_write(int fd, unsigned char *packet, int size, int rw)
return 1;
}
/* close all fds except STDIN, STDOUT and STDERR, spare1, spare2 and spare3 */
void close_fds(long max_fd, int spare1, int spare2, int spare3)
{
for (max_fd--; max_fd >= 0; max_fd--)
if (max_fd != STDOUT_FILENO && max_fd != STDERR_FILENO && max_fd != STDIN_FILENO &&
max_fd != spare1 && max_fd != spare2 && max_fd != spare3)
close(max_fd);
}
/* Basically match a string value against a wildcard pattern. */
int wildcard_match(const char* wildcard, const char* match)
{