Mercurial > hg > nginx
annotate src/os/unix/ngx_daemon.c @ 6791:cb4a4e9bba8e
Perl: fixed optimization in SSI command handler.
As the pointer to the first argument was tested instead of the argument
itself, array of arguments was always created, even if there were no
arguments. Fix is to test args[0] instead of args.
Found by Coverity (CID 1356862).
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 01 Nov 2016 20:39:21 +0300 |
parents | b1ba43f905f8 |
children | 8b84d60ef13d |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
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Style: the function type should be on a line by itself
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12 ngx_int_t |
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13 ngx_daemon(ngx_log_t *log) |
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14 { |
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15 int fd; |
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16 |
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17 switch (fork()) { |
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18 case -1: |
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19 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "fork() failed"); |
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20 return NGX_ERROR; |
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21 |
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22 case 0: |
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23 break; |
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24 |
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25 default: |
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26 exit(0); |
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27 } |
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28 |
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29 ngx_pid = ngx_getpid(); |
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31 if (setsid() == -1) { |
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32 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "setsid() failed"); |
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33 return NGX_ERROR; |
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34 } |
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35 |
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36 umask(0); |
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37 |
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38 fd = open("/dev/null", O_RDWR); |
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39 if (fd == -1) { |
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40 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
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41 "open(\"/dev/null\") failed"); |
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42 return NGX_ERROR; |
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43 } |
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44 |
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45 if (dup2(fd, STDIN_FILENO) == -1) { |
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46 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "dup2(STDIN) failed"); |
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47 return NGX_ERROR; |
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48 } |
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49 |
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50 if (dup2(fd, STDOUT_FILENO) == -1) { |
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51 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "dup2(STDOUT) failed"); |
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52 return NGX_ERROR; |
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53 } |
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54 |
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55 #if 0 |
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56 if (dup2(fd, STDERR_FILENO) == -1) { |
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57 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "dup2(STDERR) failed"); |
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58 return NGX_ERROR; |
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59 } |
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60 #endif |
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61 |
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62 if (fd > STDERR_FILENO) { |
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63 if (close(fd) == -1) { |
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64 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "close() failed"); |
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65 return NGX_ERROR; |
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66 } |
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67 } |
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68 |
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69 return NGX_OK; |
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70 } |