scoutos / prex-0.9.0 / usr / lib / crt / crt1.c @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*
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2 | * Copyright (c) 2005, Kohsuke Ohtani
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the author nor the names of any co-contributors
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14 | * may be used to endorse or promote products derived from this software
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15 | * without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | * SUCH DAMAGE.
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28 | */
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29 | |||
30 | /*
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31 | * C start up routine.
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32 | */
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33 | |||
34 | #include <unistd.h> |
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35 | #include <stdlib.h> |
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36 | #include <string.h> |
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37 | |||
38 | extern void __libc_init(void); |
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39 | extern int main(int argc, char *argv[], char *envp[]); |
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40 | |||
41 | void __prex_main(int, char **, char **); |
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42 | static char *_strrchr(char *, int); |
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43 | |||
44 | char **environ;
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45 | char *__progname;
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46 | |||
47 | void
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48 | __prex_main(int argc, char *argv[], char *envp[]) |
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49 | { |
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50 | char *ap;
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51 | |||
52 | environ = envp; |
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53 | |||
54 | if ((ap = argv[0])) { |
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55 | if ((__progname = _strrchr(ap, '/')) == NULL) |
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56 | __progname = ap; |
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57 | else
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58 | ++__progname; |
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59 | } |
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60 | |||
61 | __libc_init(); |
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62 | |||
63 | exit(main(argc, argv, envp)); |
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64 | /* NOTREACHED */
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65 | } |
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66 | |||
67 | static char * |
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68 | _strrchr(char *p, int ch) |
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69 | { |
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70 | char *save;
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71 | |||
72 | for (save = NULL;; ++p) { |
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73 | if (*p == ch)
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74 | save = (char *)p;
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75 | if (!*p)
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76 | return(save);
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77 | } |
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78 | /* NOTREACHED */
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79 | } |