39 lines
595 B
C++
39 lines
595 B
C++
#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include <errno.h>
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int usage()
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{
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printf("usage: kill [-n] pid ...\n");
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return 0;
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}
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int main(int argc, char* argv[])
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{
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if ( argc < 2 ) { return usage(); }
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int first = 1;
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int signum = SIGTERM;
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if ( argv[1][0] == '-' )
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{
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signum = atoi(argv[first++]);
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if ( argc < 3 ) { return usage(); }
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}
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int result = 0;
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for ( int i = first; i < argc; i++ )
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{
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pid_t pid = atoi(argv[i]);
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if ( kill(pid, signum) )
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{
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printf("kill: (%u): %s\n", pid, strerror(errno));
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result |= 1;
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}
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}
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return result;
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}
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