fix various bugs in path and error handling in execvp/fexecve
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5f814682b4
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4b87736998
2 changed files with 31 additions and 20 deletions
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@ -1,10 +1,13 @@
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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int fexecve(int fd, char *const argv[], char *const envp[])
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{
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static const char proc[] = "/proc/self/fd/%d";
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char buf[sizeof proc + 3*sizeof(int)];
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snprintf(buf, sizeof buf, proc, fd);
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return execve(buf, argv, envp);
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execve(buf, argv, envp);
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if (errno == ENOENT) errno = EBADF;
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return -1;
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}
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