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execl.c - 9base - revived minimalist port of Plan 9 userland to Unix |
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git clone git://git.suckless.org/9base |
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execl.c (393B) |
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1 #include <u.h> |
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2 #include <libc.h> |
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3 |
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4 int |
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5 execl(char *prog, ...) |
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6 { |
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7 int i; |
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8 va_list arg; |
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9 char **argv; |
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10 |
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11 va_start(arg, prog); |
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12 for(i=0; va_arg(arg, char*) != nil; i++) |
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13 ; |
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14 va_end(arg); |
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15 |
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16 argv = malloc((i+1)*sizeof(char*)); |
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17 if(argv == nil) |
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18 return -1; |
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19 |
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20 va_start(arg, prog); |
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21 for(i=0; (argv[i] = va_arg(arg, char*)) != nil; i++) |
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22 ; |
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23 va_end(arg); |
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24 |
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25 exec(prog, argv); |
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26 free(argv); |
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27 return -1; |
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28 } |
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29 |
