64 lines
978 B
C
64 lines
978 B
C
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#include <stdio.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <process.h>
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/*
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* execenv <var> <value-file> <command> {<arguments>}
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*/
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int main(int argc, char **argv)
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{
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char *name;
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char *value;
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FILE *fh;
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int size;
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int i;
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if(argc < 4) {
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fprintf(stderr,"Burble!\n");
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exit(10);
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}
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name = argv[1];
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fh = fopen(argv[2],"rb");
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if(fh == NULL) {
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fprintf(stderr,"Could not open '%s' for reading\n",argv[2]);
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exit(20);
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}
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fseek(fh,0,SEEK_END);
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size = ftell(fh);
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fseek(fh,0,SEEK_SET);
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value = calloc(size+1,1);
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if(value == NULL) {
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fprintf(stderr,"Could not allocate %d bytes\n", size);
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exit(30);
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}
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fread(value,1,size,fh);
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fclose(fh);
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/*
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* replace all white space with real space
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*/
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for(i=0; i < size; i++)
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if(isspace(value[i]))
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value[i] = ' ';
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/*
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* Trim any white space of end of value
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*/
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while((size >= 1) && isspace(value[size-1])) {
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value[--size] = '\0';
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}
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setenv(name,value);
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execvp(argv[3], argv+3);
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return 0;
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}
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