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44 lines
929 B
C
44 lines
929 B
C
#include <fcntl.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "util.h"
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// Relaxed error checking/reporting is fine because exec'd
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// program will report a missing file if the function fails.
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void move_tmpicc(const char* emul)
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{
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char buf[1024];
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struct stat st;
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int bytes, src, dst;
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const char* real = emul + EMULDIR_LEN;
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const char* tail = real + (sizeof("/tmp/i") - 1);
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if(strncmp(tail, "cc", 2) != 0 && strncmp(tail, "po_icc", 6) != 0)
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return;
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if(stat(real, &st) == 0)
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return;
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if(stat(emul, &st) < 0 || !(st.st_mode & S_IFREG))
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return;
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src = open(emul, O_RDONLY, 0644);
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dst = open(real, O_WRONLY|O_CREAT|O_EXCL, st.st_mode);
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while((bytes = read(src, buf, sizeof(buf))) > 0) {
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if(write(dst, buf, bytes) != bytes) {
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bytes = -1;
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break;
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}
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}
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if(src >= 0)
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close(src);
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if(dst >= 0 && close(dst) < 0)
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bytes = -1;
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if(bytes < 0 || unlink(emul) < 0)
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unlink(real);
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}
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